SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

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                                    FORM 10-K

              (X) ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF
                       THE SECURITIES EXCHANGE ACT OF 1934
                   FOR THE FISCAL YEAR ENDED DECEMBER 31, 1999

                                       OR

              (_) TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934
               FOR THE TRANSITION PERIOD OF__________TO__________

                         COMMISSION FILE NUMBER 1-11388

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                                PLC SYSTEMS INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

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       YUKON TERRITORY, CANADA                                  04-3153858
   (STATE OR OTHER JURISDICTION OF                           (I.R.S. EMPLOYER
    INCORPORATION OR ORGANIZATION)                           IDENTIFICATION NO.)

                     10 FORGE PARK, FRANKLIN, MASSACHUSETTS
                    (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)

                                      02038
                                   (ZIP CODE)

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                                 (508) 541-8800
              (REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE)

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           SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:

                                                        NAME OF EACH EXCHANGE
      TITLE OF EACH CLASS                                ON WHICH REGISTERED
      -------------------                                -------------------
  COMMON STOCK, NO PAR VALUE                           AMERICAN STOCK EXCHANGE

           SECURITIES REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT:

                                      NONE
                              ---------------------

         Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days.

                               Yes X    No
                                  ---     ---

         Indicate by check mark if disclosure of delinquent filers pursuant to
Item 405 of Regulation S-K is not contained herein, and will not be contained,
to the best of registrant's knowledge, in definitive proxy or information
statements incorporated by reference in Part III of this Form 10-K or any
amendment to this Form 10-K. [ ]

         The aggregate market value of the voting stock held by non-affiliates
of the registrant, based on the last sale price for such stock on March 8, 2000,
was $82,192,815. As of March 8, 2000, 21,223,385 shares of Common Stock, no par
value per share, were outstanding.


                       DOCUMENTS INCORPORATED BY REFERENCE


         Portions of the registrant's definitive proxy statement, which will be
issued in connection with the 2000 Annual Meeting of Shareholders, are
incorporated by reference in Part III of its Annual Report in Form 10-K.

                           FORWARD-LOOKING STATEMENTS

         This report (including certain information incorporated herein by
reference) contains forward-looking statements within the meaning of Section 27A
of the Securities Act of 1933, as amended, and Section 21E of the Securities
Exchange Act of 1934, as amended. These forward-looking statements include
statements in Item 1. "Business"; Item 3. "Legal Proceedings"; Item 7.
"Management's Discussion and Analysis of Financial Condition and Results of
Operations"; and Item 7A. "Quantitative and Qualitative Disclosures about Market
Risk". Statements containing terms such as "believes", "plans", "expects",
"anticipates", "intends", "estimates" and similar expressions contain
uncertainty and are forward-looking statements. Forward-looking statements are
based on current plans and expectations and involve known and unknown risks and
uncertainties that could cause actual results to differ materially from those
described in the forward-looking statements. Such factors and uncertainties
include, but are not limited to: the successful ability to secure any required
financing; the ability to convince health care professionals and third party
payers of the medical and economic benefits of the Company's products; the
absence of reimbursement for health care providers who use the Company's
products, or the risk that reimbursement, if provided, will be inadequate;
restrictions imposed by regulatory agencies such as the U.S. Food and Drug
Administration; competitive developments; business conditions, growth in certain
market segments, and the general economy; uncertainty that any patent protection
will exclude competitors or that the Company's products do not infringe any
intellectual property rights of others; and the risk factors set forth in Item
7, Item 7A, the Company's other SEC reports and the Company's press releases.


                                     PART I

ITEM 1.           BUSINESS.

General

         PLC Systems Inc. ("PLC" or the "Company") has developed a patented
high-powered carbon dioxide ("CO(2)") laser system known as The Heart Laser-TM-
System for use in the treatment of coronary artery disease in a surgical laser
procedure, pioneered by the Company and its clinical investigators, known as
transmyocardial revascularization ("TMR").

         TMR is a new laser based treatment for relieving debilitating pain
in patients suffering from severe coronary artery disease ("CAD"). Each TMR
procedure requires a sterile, single use, TMR kit containing assorted TMR
handpieces, drapes and other disposable items. The Company's CO(2) laser is
used by a cardiovascular surgeon to create between 20 and 40 tiny channels in
the heart wall of a patient suffering from severe CAD. The Company's Heart
Laser System was developed specifically for TMR and it is believed to be the
only TMR system that can create a channel completely through the heart wall
with a single laser pulse. In addition, the Company's Heart Laser System uses
patented technology to fire this single laser pulse in the fraction of a
second between a patient's heartbeats. This patented "synchronization"
technology ensures that The Heart Laser System will only fire at a relatively
safe point in a patient's heartbeat cycle when the heart is relatively still
and unresponsive to stimuli. The procedure does not require a heart-lung
bypass machine and is performed through a small incision between the
patient's ribs while the patient's heart is beating.

         The Company estimates that each year approximately 120,000 patients
worldwide are diagnosed with severe CAD which is not treatable by conventional
revascularization techniques. CAD is a form of heart disease caused by the
blockage of blood flow into the coronary arteries which supply oxygen-rich blood
to the heart. Typically, severe CAD patients experience excruciating spasmodic
attacks of chest pain, or "angina", and often shortness of breath and fatigue.
No longer candidates for traditional surgery, these patients are generally on
maximum drug therapy. U.S. clinical studies have demonstrated The Heart Laser
System to be safe and effective in decreasing angina by two or more classes
(angina is measured in classes from one to four, one being the least painful and
four being the most) in nearly 75% of the patients studied; in fact, TMR using
The Heart Laser System eliminated all angina in one-third of the patients
studied.

         Over 5,500 patients have been treated with the Company's Heart Laser
System in the United States and abroad. As of December 31, 1999, the Company had
shipped 135 Heart Laser Systems worldwide.

RECENT DEVELOPMENTS

         Since the Company's last annual report on Form 10-K, the following
significant events and accomplishments have occurred:

         MEDICARE REIMBURSEMENT BEGINS. On July 1, 1999, the Health Care
Financing Administration ("HCFA") implemented nationwide coverage for Medicare
patients receiving TMR with devices approved by the U.S. Food and Drug
Administration (the "FDA"). The decision allows health care providers who use
the PLC Heart Laser System to receive payment for TMR procedures performed on
patients insured by Medicare. During the previous two years, HCFA had denied all
coverage for Medicare patients receiving TMR. In October 1999, HCFA further
announced that its TMR coverage policy included cases where TMR is used as an
adjunct to coronary artery bypass grafting ("CABG").

         MANAGEMENT CHANGES AT PLC. During 1999, PLC's chief executive officer
and chief financial officer resigned. A new chief financial officer was
appointed in November 1999 and a new chief executive officer was appointed in
December 1999. Mark R. Tauscher was appointed president, chief executive officer
and a director of PLC on December 22, 1999. Mr. Tauscher has over 20 years of
experience in medical product sales, marketing and management at companies
including Quinton Instrument Company, Marquette Medical Systems and Hewlett
Packard.


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James G. Thomasch was appointed senior vice president of finance and
administration, chief financial officer and treasurer on November 8, 1999. Mr.
Thomasch is a certified public accountant with over 18 years of experience. Mr.
Thomasch has served as chief financial officer for XRE Corporation and
Angiographic Devices Corporation and as an audit manager for Arthur Andersen
LLP. Most recently, Mr. Thomasch was the XRE division president and chief
operating officer for Trex Medical Corporation.

         NEW DIRECTORS JOIN PLC'S BOARD. In September 1999, two new directors
were appointed to PLC's Board of Directors, Alan H. Magazine and Kevin J. Dunn.
For the past 10 years, Mr. Magazine served as president and chief executive
officer of the Health Industry Manufacturer's Association , the largest
worldwide association for medical technology companies. Prior to this, Mr.
Magazine was the president and chief executive officer of the Foundation for
American Economic Competitiveness and its operating arm, the Council on
Competitiveness. Mr. Dunn is the senior managing director for the Boston office
of The Robinson Humphrey Company, an investment banking firm. Previously, Mr.
Dunn worked for Tucker Anthony Incorporated for over 15 years, most recently as
senior managing director for the investment banking group and a director of the
firm. In May 1999, Harold Capozzi, a PLC director since 1991, retired from the
Board.

         PLC RECEIVES PMR PATENT. In 1999 PLC received U.S. Patent No. 5,893,848
covering a gauging system for monitoring the depth of channels created in
percutaneous myocardial revascularization, known as "PMR" or "PTMR". Knowing the
depth of channels created during PMR is believed to be important to performing
PMR procedures safely and effectively.

         PLC RECEIVES ISO 9001 CERTIFICATION. In March 1999, PLC received ISO
9001 certification, allowing the Company to place the CE Mark on its products.

         PLC HEART LASER SYSTEM APPROVED FOR SALE IN SOUTH KOREA. In July 1999,
the Korean Food and Drug Administration approved the PLC Heart Laser System for
commercial distribution throughout South Korea.

BACKGROUND

         In 1981, the Company's former Chairman, Dr. Robert I. Rudko, formed
Laser Engineering, Inc. ("LEI"), now PLC Medical Systems, Inc., to develop and
commercialize sealed-off carbon dioxide ("CO(2)") lasers. Dr. Rudko, who holds a
Ph.D. in electrical engineering from Cornell University, had spent over
twenty-five years designing and developing CO(2) laser systems for Raytheon
Company. In the late 1980s, a heart surgeon at the San Francisco Heart
Institute, Dr. John Crew, was performing early studies of TMR on hearts that had
been stopped and placed on a heart-lung machine. Although these early studies
appeared promising, the efficacy of the TMR treatment could not be proven unless
the procedure could be performed on a beating heart. Since no laser existed at
that time which could perform such a medical procedure, the San Francisco Heart
Institute turned to Dr. Rudko and LEI to design and develop such a laser. The
result of that effort was The Heart Laser System, a high-powered laser system
capable of creating a channel completely through a human heart wall with a
single laser pulse delivered in the fraction of a second between heartbeats.

         In November 1990, the Company received a Phase I Investigational Device
Exemption ("IDE") for its Heart Laser System from the FDA. In approving the
Phase I study, the FDA permitted the use of The Heart Laser System for patients
considered not suitable for any other intervention. Phase I trials were
performed by Dr. John Crew and completed in October 1991. In April 1992, the
Company received Phase II clearance from the FDA to perform TMR on 50 patients
at four clinical sites. This clearance was expanded to eventually include 201
patients at eight clinical sites. In 1995, the FDA approved three new IDEs for
studies of TMR using The Heart Laser System. The first was a 100 patient
randomized study (Phase III) comparing TMR patients to patients receiving
medical management. The study was later expanded to 200 patients. The second
study was a 400 patient randomized trial comparing TMR patients to patients
receiving a second bypass surgery. The third study compared patients receiving
TMR in conjunction with bypass surgery to patients receiving only bypass
surgery.

         The Company recently undertook an effort to gather long-term (more than
12 months) data on its clinical study


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patients. The long-term TMR analysis included 70 patients at eight hospitals.
Each patient had been suffering from severe coronary artery disease, including
chronic angina, before receiving treatment with The Heart Laser System. The
average age of the patients at enrollment was 63. The average preoperative
angina class for the group was 3.8. Angina is measured in classes ranging from
one to four, with one being the least painful and four being the most painful.
After an average of 34 months following the TMR procedure, the group's average
angina class was improved from 3.8 to 1.5. This was virtually unchanged from the
1.4 average angina class reported at 12 months postoperatively. In fact, three
years after TMR with The Heart Laser System, 23% of the patients reported having
no angina and 58% were in class 1 or 2.

         Since April 1992, the Company has received 21 U.S. patents relating to
the underlying laser technology, the use of a laser on a beating heart, The
Heart Laser System handpiece and other laser accessories. The Company also has
11 U.S. patent applications pending that cover various aspects of the technology
for The Heart Laser System and the process by which a laser is used to
revascularize the myocardium, as well as other laser technologies. The Company
also holds a number of foreign patents and patent applications.

         On August 20, 1998, the Company received approval from the FDA to
market The Heart Laser System throughout the U.S. to treat the estimated 80,000
domestic patients each year who suffer from severe coronary artery disease but
cannot be treated with conventional coronary revascularization techniques such
as bypass surgery or angioplasty. PLC was the first company to receive FDA
approval to commercialize a product to perform TMR.

         The Company was incorporated pursuant to the COMPANY ACT of British
Columbia, Canada on March 3, 1987. The Company transferred its jurisdiction of
incorporation to the Yukon Territory of Canada in March 1999. The Company's
principal offices and manufacturing facilities are located at 10 Forge Park,
Franklin, Massachusetts 02038. The Company's telephone number is (508) 541-8800.
As used herein, the term "Company" means, unless the context requires otherwise,
PLC and its subsidiaries, PLC Medical Systems, Inc., PLC Sistemas Medicos
Internacionais GmbH, PLC Medical Systems AG, PLC Medical Systems Asia/Pacific
Pte Ltd and PLC Medical Systems Australia Pty Ltd.

CARDIOVASCULAR DISEASE AND CURRENT THERAPIES

         Today 60 million Americans are suffering from cardiovascular disease
with over 12.2 million Americans suffering from coronary heart disease.
Cardiovascular disease is the leading cause of death in the U.S., resulting in
over 41% (or 950,000) of all deaths in the U.S. annually. Arteriosclerosis, the
principal form of cardiovascular disease and primary cause of heart attacks, is
characterized by a progressive accumulation of fatty deposits known as "plaque"
in the walls of arteries and the resulting narrowing of the interior of the
arteries. Arteriosclerosis reduces blood flow to the muscle wall ("myocardium")
of the heart, causing ischemia and resulting angina and can further lead to a
complete occlusion of the artery causing a heart attack. According to the 2000
Heart and Stroke Facts Statistics published by the American Heart Association
(the "AHA"), approximately 607,000 coronary bypass operations and 447,000
balloon angioplasty procedures were performed in the U.S. in 1997. The AHA
estimates the cost of cardiovascular disease in the year 2000 at $326.6 billion,
including physician and nursing services, hospital and nursing home services,
the cost of medications and lost productivity resulting from disability.

         Traditional treatment of atherosclerosis includes drug therapy, surgery
and angioplasty. Drug therapy alleviates some of the symptoms of atherosclerosis
but is often ineffective in serious cases. Conventional bypass surgery involves
cutting open the patient's chest, cutting through the sternum, connecting the
patient to a heart-lung machine, stopping the heart, attaching a vein or artery
removed from another part of the patient's body to create a bypass around the
diseased blood vessel and restarting the heart. Certain patients are not
suitable for bypass procedures, including some who have previously undergone
bypass surgery, patients with extremely diffuse diseases, patients with vessels
that are too small to graft, patients with chronic obstructive pulmonary
disease, some diabetics, and others who are too ill to survive the use of a
heart lung machine.

         A less invasive alternative to bypass surgery is balloon angioplasty.
The most common form of angioplasty involves inserting a catheter with a balloon
at the tip into a diseased artery. By inflating the balloon at the site of
blockage, the arterial plaque can be pressed against the arterial walls and
reshaped, resulting in increased blood flow.


                                       3


Metallic stents were developed to help prevent the sudden closures that
sometimes occur after angioplasty and to help reduce restenosis. These stents
are inserted into the artery after balloon angioplasty to hold the expanded
plaque in place. Because it is less traumatic and less costly, balloon
angioplasty is preferred over bypass surgery when the blockages are not
complicated and involve few coronary arteries. While offering certain benefits
compared to bypass surgery, certain studies including the 1991 Coronary Artery
Descriptors and Restenosis Study ("CADRE") and the 1993 Emory Angioplasty vs.
Surgery Trial ("EAST") suggest restenosis or reocclusion is a serious problem
with traditional angioplasty treatment. While stents have been shown to help
reduce restenosis, and are used extensively, restenosis continues to occur at a
significant rate. Atherectomy, another angioplasty-type treatment, involves the
use of a catheter that contains a rotating mechanical device to cut, grind away
and remove the plaque.

         Management believes that TMR using The Heart Laser System is useful as
a treatment for patients who have severe, stable angina and who are no longer
candidates for either angioplasty or bypass because of either extensive disease
or small coronary arteries. The FDA has approved The Heart Laser System for such
patients. TMR is designed to be less invasive and less expensive than
traditional bypass surgery, and may avoid the restenosis problem common with
bypass surgery and balloon angioplasty by not targeting the coronary arteries
for treatment. Also, with additional clinical research, TMR may be proven useful
in conjunction with angioplasty or bypass surgery to obtain more complete
revascularization.

         In addition to the more conventional treatments described above, there
are a number of newer treatments and therapies including minimally invasive
direct coronary artery bypass ("MIDCAB"), "off-pump" coronary artery bypass
("OPCAB") and the use of angiogenic growth factors. Some of these techniques and
therapies may offer certain improvements in relation to conventional treatments.
Management believes that with further clinical research, TMR may be found useful
in conjunction with these less invasive procedures to more effectively
revascularize the heart.

TMR USING THE HEART LASER SYSTEM

         The main challenge in treating atherosclerosis is to allow adequate
blood to flow to the heart muscle without significantly damaging the heart. The
conventional and newer techniques described above are used to bypass, reopen or
widen blocked or narrowed arteries and could eventually fail due to restenosis
or natural disease progression. TMR using The Heart Laser System involves a
different technique where channels are created into the myocardium as a means of
supplying oxygen-rich blood from the left ventricular chamber into the ischemic
myocardium. TMR does not target the coronary arteries for treatment.

         Heart muscle, like all tissues of the body, must be constantly supplied
with oxygen in order to function effectively. Oxygen is delivered to the
myocardium by the blood, which is distributed to the myocardium through the
right and left coronary arteries. If these arteries are narrowed or blocked as a
result of atherosclerosis, sufficient oxygen-rich blood may be unable to reach
the heart to satisfy the metabolic demands of the myocardium. Cardiovascular
disease eventually may cause myocardial ischemia, often evidenced by severe and
debilitating angina caused by lack of oxygen to the heart muscle, which can
progress to myocardial infarction (the death of an area of the heart muscle).
Advanced multi-vessel ischemic heart disease is typically treated with bypass
surgery.

         During the TMR procedure, the patient is given general anesthesia. An
incision is made in the patient's side between the ribs, exposing the heart. The
Heart Laser System is computer synchronized with the patient's heartbeat, firing
only when the left ventricle is filled with blood and is electrically
insensitive. The Company believes that synchronization may reduce the risk of
arrhythmias (irregular heartbeats) and their associated morbidity and mortality.
Research studies conducted by the Texas Heart Institute in animal models
indicated that performing TMR without synchronization may be associated with an
increase in life threatening arrhythmias. The synchronization technology is
covered under a patent owned by the Company. The Heart Laser System is capable
of drilling a transmural channel in less than 0.05 seconds with a single laser
pulse in a patient whose heart has not been stopped and who has not been placed
on a heart-lung bypass machine. The surgeon can vary the pulse width of the
laser using a touch key control panel to accommodate for the thickness of the
patient's heart wall. Transesophageal Echocardiography (TEE) is used to confirm
that complete channels are made by the laser. Generally, 20 to 40 new channels
are created during the procedure. Each TMR procedure requires a sterile, single
use, TMR kit containing assorted TMR hand pieces, drapes


                                       4


and other disposable items.

POTENTIAL BENEFITS OF TMR

         Based on clinical results to date, the Company believes that TMR using
The Heart Laser System provides a number of benefits, although no assurance can
be given that any of the mentioned benefits will be received by patients and no
assurance can be given that the FDA will approve additional indications for use
of The Heart Laser System.

These current anticipated benefits include:

         THERAPY FOR PATIENTS NOT SUITABLE FOR CORONARY BYPASS. The FDA has
approved the use of The Heart Laser System for patients who have severe, stable
angina and would otherwise not be suitable for coronary bypass surgery, and for
whom other surgical or interventional techniques may not be available or
advisable to alleviate the effects of atherosclerotic illness.

         POTENTIAL USE IN CONJUNCTION WITH BOTH CONVENTIONAL AND MINIMALLY
INVASIVE CORONARY BYPASS. TMR may allow the surgeon to provide oxygenated blood
to areas of the heart muscle that are not accessible by coronary bypass grafts.
With the advent of the MIDCAB and OPCAB procedures, in which coronary artery
bypass graft surgery is performed on a beating heart, Management believes that
with additional clinical research, TMR may be found to be an effective
complement to these procedures. TMR can be performed on the anterior, posterior
and lateral walls of the heart while the MIDCAB procedure usually is only
performed on the anterior wall of the heart. Further, although the OPCAB
procedure can be performed on posterior and lateral walls of the heart, it
generally entails great technical difficulty.

         POTENTIALLY A THIRD REVASCULARIZATION OPTION. In the future, with
additional clinical research, TMR may be found to be useful as an alternative to
bypass or angioplasty procedures.

         POTENTIAL THERAPY FOR HEART TRANSPLANT PATIENTS. With additional
clinical research, TMR could potentially be found useful for post-transplant
patients suffering from chronic rejection atherosclerosis. Presently, the only
treatment for this condition is re-transplantation.

         POTENTIALLY LOWER MEDICAL COSTS. Management believes the medical costs
associated with TMR using The Heart Laser System will be less than the costs of
traditional bypass surgery which requires a larger surgical team, more
supporting equipment and a longer hospital stay. The cost of TMR in some
situations may also be less than angioplasty when combinations of additional
devices such as atherectomy catheters, stents or intravascular ultrasound are
required.

         POTENTIALLY QUICKER RECOVERY. Because TMR using The Heart Laser System
is less invasive and does not involve stopping and starting the heart, the
patient may recover more quickly than if conventional bypass techniques were
used, with potentially reduced risks of complications.

         NOT DEPENDENT ON PLAQUE TYPE OR LOCATION AND POTENTIALLY LESS RISK OF
RESTENOSIS. Unlike angioplasty, atherectomy devices and stents, which may be
more or less effective, depending on the composition, extent or location of the
plaque occluding the artery and which have evidenced high restenosis rates, TMR
is not dependent upon plaque type or location.

DEVELOPMENT OF MARKETING STRATEGY

         The Company's strategy is to establish TMR using The Heart Laser System
as a standard of care for treating patients suffering from coronary artery
disease. Currently, The Heart Laser System is commercially available in the
U.S., the European Community (except France), China, South Korea, Taiwan and
certain countries that do not require governmental approval for
commercialization. The Company has submitted applications for government
approval to sell The Heart Laser System in other countries including Japan.

         The Company has also developed a procedural kit, which includes single
use surgical products to be used with


                                       5


The Heart Laser System in performing TMR. The TMR procedure kit contains a set
of handpieces, drapes and other TMR surgical accessories.

         The Company has developed a strategy to address the challenges of
marketing high cost capital equipment by offering the Heart Laser System on a
usage basis to hospitals. The structure of a particular usage based contract,
including the length of contract, price billed per procedure and end of term
options for purchase, depends primarily on whether the hospital is willing and
able to commit to a certain minimum volume of procedures over a defined period
of time. If the hospital cannot commit to a sufficient number of procedures, The
Heart Laser System may be installed with usage fees billed as agreed upon with
the hospital. The Company refers to this type of usage arrangement as a retained
placement contract. Under a retained placement contract, placement and service
fee revenue is recorded over the term of the usage agreement, and The Heart
Laser System remains the property of the Company and is depreciated over the
term of the usage agreement.

         If the hospital is willing and able to commit to a sufficient number of
procedures such that the substantial risks and benefits of ownership of The
Heart Laser System have transferred to the hospital, then the Company classifies
the usage agreement as a minimum procedure sales contract. Under a minimum
procedure sales contract, the Company records product revenue at a discounted
present value of the guaranteed minimum procedure payments, and records product
cost of sale at the time of acceptance of The Heart Laser System.

         Retained placement and minimum procedure sales contracts are appealing
to hospitals when capital equipment funds are scarce or unavailable or when it
is difficult to predict early usage as is the case with new technology such as
TMR. The Company's financing arrangements with leasing vendors enables the
Company to monetize future payment streams associated with certain placements.
If utilization becomes more predictable, the Company expects a significant
number of new accounts to opt for conventional leasing or direct purchase.

         The Heart Laser System is also sold to customers, and the related
sterile handpieces and other disposables are sold separately for each procedure.
These sales are classified as product sales.

         The Company has several different marketing strategies to sell or place
The Heart Laser System and accessories depending upon the particular
circumstances, including direct sales, sales through distributors, minimum
procedure sales contracts, retained placements, rental, and leasing. Pricing
varies depending upon the particular marketing strategy used and the country in
which The Heart Laser System is sold.

         UNITED STATES. The Company is primarily using a direct sales force in
the United States to market The Heart Laser System. The sales force is comprised
of personnel with a high degree of professionalism and experience in the
cardiovascular device business. The Company invested considerable resources in
recruiting and training of the sales force in 1998 and 1999. Initial marketing
efforts following FDA approval were directed at The Heart Laser System user, the
cardiothoracic surgeon, whose influence is believed to be critical in a
hospitals decision to purchase The Heart Laser System. Subsequent marketing
efforts are expected to shift to hospital administration and referring
physicians, with a focus on promoting the economics and viability of TMR as a
new hospital technology and driving the growth of TMR procedures. No assurance
can be given that such programs will be implemented successfully, or at all.

         Supporting the direct sales force is a promotional program that
consists of electronic media advertising, public relations, direct mail, trade
shows and educational symposia, all focused on disseminating critical
information to decision makers and key purchase influencers.

         In 1999, PLC expanded its Center of Excellence training program to
Texas Heart Institute in Houston. Since 1998, PLC and Rush Presbyterian Medical
Center in Chicago have hosted a training program focused on educating
prospective surgeons as well as surgeons from new and existing customer sites in
the use of The Heart Laser System. These comprehensive programs facilitate
interaction among experienced users enabling them to discuss best practices and
focus on ensuring the best possible patient outcomes, including intensive
discussions on patient selection and management. Course participants view live,
narrated procedures via closed circuit television. Actual hands on training is
also provided during the laboratory session.


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         INTERNATIONAL. The Company currently markets The Heart Laser System
overseas both directly and through distributors. International Sales (by origin)
accounted for 12%, 30% and 54% of the Company's total revenues in 1999, 1998 and
1997 respectively. The Company had no sales by origin in Canada, its principle
business location.

         PLC received the CE Mark for The Heart Laser System in the third
quarter of 1995. The CE Mark allows the Company to sell The Heart Laser System
commercially in European Community countries. Despite receiving the CE Mark, the
French Ministry of Health instituted a commercial moratorium on TMR procedures
in France in October 1997 (See "Government Regulation").

         In March 1999, PLC received ISO 9001 certification, allowing the
Company to self certify and place the CE Mark on its products.

         In early 1999, the Company renewed its distribution agreement in Japan
with Imatron Japan, Inc. ("Imatron") to distribute The Heart Laser System in
Japan and complete the Japanese regulatory approval process. Along with the
United States and Germany, Japan is believed to be one of the three largest
markets in the world for products used in the treatment of cardiovascular
disease. Imatron also distributes medical equipment in Japan for its parent,
Imatron, Inc. a U.S. based manufacturer of diagnostic imaging equipment. Between
1995 and 1997, Imatron purchased 12 Heart Laser Systems from PLC to conduct
clinical studies in Japan. PLC and Imatron submitted data from these studies to
the Japanese Government in December 1998 in support of their application to
market The Heart Laser System in Japan. The joint application is believed to be
the first submitted by a laser revascularization company seeking to market its
product in Japan. No assurance can be given that Japanese regulatory approval
will be granted to The Heart Laser System.

         As of December 31, 1999, the Company had shipped 78 Heart Laser Systems
to international markets. Foreign sales may be subject to certain risks,
including foreign medical, electrical and safety regulations, export and import
restrictions, tariffs and currency fluctuations.

PRODUCTS AND CUSTOMERS

         The Company develops and markets one principal product: The Heart Laser
System. Approximately 89% of the Company's revenue in the fiscal year ended
December 31, 1999, 90% in the fiscal year ended December 31, 1998 and 93% in the
fiscal year ended December 31, 1997 was derived from The Heart Laser System. No
single customer accounted for more than 10% of the Company's revenues in fiscal
1999 or 1998. In 1997, Imatron, the Company's exclusive distributor in Japan,
accounted for approximately 20% of the Company's revenues.

MANUFACTURING

         The Company manufactures and tests its products at its 37,000 square
foot facility in Franklin, Massachusetts, approximately 40 miles west of Boston.
The Company moved to this facility in September 1996 and believes that its
manufacturing capacity will be sufficient to meet market demands anticipated in
the coming year.

         The Company purchases components for its laser systems and its related
disposables from a number of sources, and management believes that most
components are available from multiple sources. The Company's manufacturing
facilities are subject to periodic inspection by regulatory authorities to
ensure compliance with FDA and European Community quality regulations. The
Company's business is not subject to seasonal fluctuations.

GOVERNMENT REGULATION

         The Heart Laser System, as well as other medical devices that have
been and are being developed by the Company, are subject to extensive
regulation by the FDA. Pursuant to the Federal Food, Drug and Cosmetic Act,
as amended, (the "FDC Act"), the FDA regulates the design, development,
manufacturing and clinical testing, installation, servicing, labeling,
distribution and promotion of medical devices in the U.S. The Company's laser
products are subject to

                                       7


additional FDA regulation under the radiation health and safety provisions of
the FDC Act, which imposes labeling and other safety requirements related to
radiation hazards. In addition, various foreign countries in which the
Company's products are or may be sold impose additional regulatory
requirements.

         On August 20, 1998, the Company received approval from the FDA to
market The Heart Laser System throughout the U.S. to treat the estimated 80,000
domestic patients each year who suffer from severe coronary artery disease but
cannot be treated with conventional coronary revascularization techniques such
as bypass surgery or angioplasty. PLC was the first company to receive FDA
approval to commercialize a product to perform TMR. FDA imposed certain
post-approval requirements as conditions of its August clearance. These
requirements include a 600 patient post-market study to further assess
mortality, a specific "TMR" surgical informed consent and certain disclaimers
placed on all promotion and advertising materials.

         Once a product obtains market approval, any material modifications to
the existing design or manufacturing process as well as any desire to change its
labeling (i.e., intended use) must be approved by the FDA. The Company intends
to continuously improve The Heart Laser System after market introduction and may
therefore submit future Investigational Device Exemption ("IDE"), Pre-Market
Approval ("PMA") and PMA supplement applications to the FDA. No assurance can be
given that approval of such new IDEs, PMAs or PMA supplements will be received
from the FDA on a timely basis, or at all.

         The international regulatory approval process varies from country to
country and is subject to change in a given country as regulatory requirements
change. There is no assurance that foreign regulatory authorities will allow (or
will continue to allow) the use or sale of The Heart Laser System in a
particular country on a timely basis, or at all.

         In addition, regulatory authorities can suspend or modify approvals
previously granted in certain circumstances. For example, the French Ministry of
Health instituted a commercial moratorium on TMR procedures in France in October
1997. The French Ministry of Health deemed the procedure to be "experimental",
although The Heart Laser System had been approved for commercial distribution in
the European Community since 1995. As a result, TMR can only be performed within
the context of a clinical study in France. An evaluation of the safety of The
Heart Laser System is currently under review by a panel of French experts. There
can be no assurance that the Company will be successful in having the moratorium
lifted or that other countries will not impose restrictions on the use or sale
of the Company's products.

         As a device manufacturer, the Company is also required to register
with the FDA. As such, the Company is subject to inspection on a routine
basis for compliance with the FDA's Quality Systems regulations. These
regulations require that the Company manufacture its products and maintain
its documents in a prescribed manner with respect to manufacturing, testing
and control activities. Further, the Company is required to comply with
various FDA requirements for reporting. The FDC Act and medical device
reporting regulations require that the Company provide information to the FDA
on death or serious injuries alleged to have been caused or contributed to by
the use of its products, as well as product malfunctions that would likely
cause or contribute to death or serious injury if the malfunction were to
recur. The FDA also prohibits an approved device from being marketed for
unapproved uses. The Company's laser products are subject to periodic
inspection under the radiation health and safety provisions of the FDC Act
for compliance with labeling and other safety regulations. If the FDA
believes that a company is not in compliance with the law, proceedings can be
instituted to detain or seize products or force notification and correction
of hazards or defects (including a recall), enjoin future violations and
assess civil and criminal penalties against the Company, its officers,
directors or employees. Failure to comply with regulatory requirements could
have a material adverse effect on the Company's business, financial condition
and results of operations.

THIRD PARTY REIMBURSEMENT

         Heath care providers, such as hospitals and physicians, that purchase
medical devices such as The Heart Laser System for use on their patients
generally rely on third party payers, principally Medicare, Medicaid and private
health insurance plans, to reimburse all or part of the costs associated with
the procedures performed with these devices.


                                       8


         In February 1997, the Health Care Financing Administration ("HCFA")
published a national non-coverage instruction for TMR. It is not unusual for
HCFA to deny reimbursement for procedures performed using devices that have not
yet received FDA approval. The non-coverage instruction applied to procedures
performed on or after May 19, 1997 on Medicare beneficiaries.

         On August 20, 1998, the Company received approval from the FDA to
market The Heart Laser System throughout the U.S. to treat the estimated 80,000
domestic patients each year who suffer from severe coronary artery disease but
cannot be treated with conventional coronary revascularization techniques such
as bypass surgery or angioplasty. PLC was the first company to receive FDA
approval to commercialize a product to perform TMR.

         In January 1999, the Blue Cross and Blue Shield Association Technology
Evaluation Center ("TEC") completed a favorable assessment of TMR. The TEC
concluded that TMR meets all five criteria used to evaluate new medical
technologies: (1) final approval from the FDA; (2) scientific evidence of
improvement in health outcomes; (3) net benefit in health outcomes; (4) health
outcomes at least as beneficial with any established alternative; and (5)
improvements achievable outside investigational settings. The TEC's
determination that TMR meets its criteria is a significant step in obtaining
reimbursement for TMR by major payers. The TEC's conclusion was based upon a
review of data showing the safety and effectiveness of TMR by the TEC program
staff, and the TEC's assessment was approved by its panel of independent medical
advisors. The TEC program is sponsored by the national Blue Cross and Blue
Shield Association, whose members include local Blue Cross and Blue Shield plans
nationwide, as well as other major managed care organizations. TEC assessments
are released as reports to TEC program subscribers. Nearly all major payers in
the US, including governmental payers, private third party payers and managed
care organizations, subscribe to the TEC program and receive TEC assessment
reports for use in their own coverage and payment policy making.

         In February 1999, HCFA rescinded the national non-coverage instruction
for TMR implemented in May 1997 and announced that Medicare will provide
coverage for TMR procedures performed with devices approved by the FDA. The
decision set a new coverage policy to allow payment for TMR consistent with
FDA-approved uses of TMR devices effective July 1, 1999.

         In October 1999, HCFA issued an addendum clarifying Medicare coverage
for TMR procedures. In response to questions from practicing physicians, HCFA
announced that Medicare coverage would be provided in cases where TMR is used as
an adjunct to coronary artery bypass grafting (CABG).

         Economic data derived from the Company's clinical studies indicates
that TMR using The Heart Laser System may result in a significant reduction in
the cost of treating patients with severe CAD. Potentially, this could mean that
TMR performed with The Heart Laser System is a procedure that offers real
economic advantages to the managed care market, in particular, in which over 70%
of all privately insured Americans are covered at least in part. No assurance
can be given that such economic benefits will be realized by customers.

         Certain private insurance companies and health maintenance
organizations currently provide reimbursement for TMR procedures performed with
the Company's products. No assurance can be given, however, that these payers
will continue to reimburse health care providers who perform TMR procedures
using the Company's products. Further, no assurance can be given that additional
payers will reimburse health care providers who perform TMR procedures using the
Company's products or that reimbursement, if provided, will be timely or
adequate. In addition, the market for the Company's products could be adversely
affected by future legislation to reform the nation's health care system or by
changes in industry practices regarding reimbursement policies and procedures.

PRODUCT LIABILITY AND INSURANCE

         The Company's business involves the risk of product liability claims.
No claims have been made against The Heart Laser System to date. The Company
maintains product liability insurance with per claim and aggregate coverage
limits of $10 million, subject to a $50,000 per occurrence and $250,000
aggregate self-insured deductible. No


                                       9


assurance can be given that product liability claims, if brought, will not
exceed such insurance coverage limits, that such claims will not have a material
adverse effect on the Company or that such insurance will be available on
commercially reasonable terms or at all.

PROPRIETARY PROCESSES, PATENTS, LICENSES AND OTHER RIGHTS

         The Company's policy is to file patent applications to protect its
technology, inventions and product improvements. The Company also relies on
trade secret protection for certain confidential and proprietary information.

         Since April 1992, the Company has received 21 U.S. patents, of which 16
involve The Heart Laser System and its related technologies. These patents have
terms which expire from 2009 through 2017 and cover the underlying laser
technology needed to create a pulsed, fast flow laser system,the use of a laser
on a beating heart to revascularize the heart using TMR, and the system used to
time the heart's contractions to synchronize the laser firing at the correct
time. The Company also has eleven U.S. patent applications pending relating to
The Heart Laser System handpiece, other technology used in The Heart Laser
System, technology associated with minimally invasive surgical techniques and
technologies associated with percutaneous myocardial revascularization.

         In April 1996, the Company received patents from the European Patent
Office and the Japanese Patent Office providing patent protection on its heart
synchronization technology. A patent covering this technology was also issued in
April 1997 in Canada. Additional Japanese-issued patents cover a TMR handpiece,
a self-aligning coupler for a laser endoscope, laser beam manipulation and a
laser beam status indicator. In December 1996, a patent was issued in Canada
covering a self-aligning coupler for a laser endoscope. The Company has numerous
patents pending related to The Heart Laser System and its components in various
international patent offices. The Company expects to file additional patent
applications in the next year, although there can be no assurance that any
additional applications will be filed or that any additional patents will be
issued.

         In January 1999, CardioGenesis Corporation ("CardioGenesis"), a
competitor of the Company that subsequently merged with Eclipse Surgical
Technologies, Inc., agreed to the validity and enforceability of certain of the
Company's patents in connection with a settlement of certain litigation between
the companies. The patents, U.S. Patent No. 5,125,926 and related international
patents, cover the Company's proprietary synchronization technology, which the
Company believes is a critical factor in increasing the safety of TMR and PMR
procedures. PLC granted CardioGenesis a non-exclusive worldwide license to the
patents in exchange for payment of a license fee and ongoing royalties over of
the life of the patents. A minimum of $2.5 million will be paid to the Company
in connection with this license agreement. (See Item 3. "Legal Proceedings").

         Although the Company believes its patents to be strong, successful
litigation against these patents by a competitor could have a material adverse
effect on the Company's business, financial condition and results of operations.
No assurance can be given that the existing patents will be held valid if
challenged, that any additional patents will be issued or that the scope of any
patent protection will exclude competitors. The breadth of claims in medical
technology patents involve complex legal and factual issues and therefore can be
highly uncertain.

         The Company also relies upon unpatented proprietary technology and
trade secrets that it seeks to protect, in part, through confidentiality
agreements with employees and other parties. No assurance can be given that
these agreements will not be breached, that the Company will have adequate
remedies for any breach, that others will not independently develop or otherwise
acquire substantially equivalent proprietary technology and trade secrets or
disclose such technology or that the Company can meaningfully protect its rights
in such unpatented technology. In addition, others may hold or receive patents,
which contain claims that may cover products developed by the Company.

         The Company believes its patents to be valid and enforceable. However,
there has been substantial litigation regarding patent and other intellectual
property rights in the medical device industry. Litigation, which could result
in substantial cost to and diversion of effort by the Company, may be necessary
to enforce patents issued to the Company, to protect trade secrets or know-how
owned by the Company, to defend the Company against claimed infringement of the
rights of others and to determine the scope and validity of the proprietary
rights of others. Adverse determinations in


                                       10


litigation could subject the Company to significant liabilities to third
parties, require the Company to seek licenses from third parties and prevent the
Company from manufacturing, selling or using its products, any of which could
have a material adverse effect on the Company's business, financial condition
and results of operations.

COMPETITION

         The Company believes that the majority of TMR procedures completed
worldwide to date have been performed using The Heart Laser System. As of
December 31, 1999, over 5,500 TMR procedures had been performed using The Heart
Laser System. In addition, the Company believes that the majority of peer
reviewed medical journal articles on TMR report results of TMR procedures
performed with The Heart Laser System.

         A number of other companies have entered or are attempting to enter
the TMR market. These companies are believed to be using other types of
lasers such as holmium and excimer lasers. Holmium and excimer lasers have
different physical properties and interact differently with human tissue than
the Company's CO(2) laser. The Company believes that The Heart Laser System
is the only TMR product that can create a channel completely through the
heart wall with a single laser pulse. Research conducted at the Texas Heart
Institute in animal models has indicated that the Company's synchronized,
single pulse CO(2) laser may cause significantly less damage to the heart
than a holmium laser used to perform TMR. Holmium lasers currently used for
TMR are not capable of creating a patent channel in one pulse, and must
therefore use a fiber-optic probe that "drills" its way from the outside of
the heart to the blood-filled left ventricle. The presence of the probe
within the heart muscle may contribute to an increased risk of arrhythmias.
Moreover, since four to seven firings are required to create a channel,
channels formed in the heart wall by such holmium systems have been observed
to be jagged and segmented. The Company believes that there is an opportunity
to successfully differentiate its CO(2) laser and plans to implement an
appropriate marketing effort accordingly. No assurance can be given that such
a marketing effort will be implemented successfully, or at all.

         The Company believes several companies are developing "percutaneous"
methods of performing TMR, known as "PMR". PMR procedures are performed via a
catheter inserted through an incision in a patient's leg. The Company has a
proprietary PMR development program underway. PMR may provide a less invasive
method of creating channels in a human heart if it can be proven safe and
effective. No assurance can be given that the Company's PMR development program
will be successful.

         The Company's two principal competitors, Eclipse Surgical Technologies,
Inc. ("Eclipse") and CardioGenesis Corporation ("CardioGenesis"), merged on
March 17, 1999. Both companies have holmium laser systems. In February 1999,
Eclipse received FDA approval to market its holmium laser in the U.S. to perform
TMR. According to public information, the laser revascularization systems
developed by Eclipse and CardioGenesis may be adaptable to be used to perform
both TMR and PMR procedures.

         Many treatments are available for coronary artery disease. The Company
believes that the primary competitive factors in the medical treatment of
coronary artery disease are clinical safety and efficacy, product safety and
reliability, regulatory approval, availability of reimbursement from insurance
companies and other payers, product quality, price, reputation for quality,
customer service and ease of use. The Company believes that its competitive
success will be based on its ability to create and maintain scientifically
effective and safe technology, obtain required regulatory approvals, obtain
third party reimbursement for use of its products, attract and retain key
personnel, obtain patent or other protection for its products and successfully
differentiate, price, manufacture and market its products either directly or
through outside parties.

         The Company believes that the primary competitive factors within the
interventional cardiovascular market are the ability to treat safely and
effectively various types of coronary disease, physician familiarity with and
acceptance of the procedure, third party reimbursement policies, and to a lesser
extent, ease of product use, product reliability and price.

         The medical care products industry is characterized by extensive
research efforts and rapid technological


                                       11


progress. New technologies and developments are expected to continue at a rapid
pace in both industry and academia. Competition in the market for surgical
lasers and for the treatment of cardiovascular disease is intense and is
expected to increase. Management believes that The Heart Laser System must
compete not only with TMR and PMR systems, but also with medical management
(drugs) and other coronary procedures (e.g. coronary bypass, balloon
angioplasty, atherectomy, laser angioplasty and stents). Many of the companies
manufacturing these products have substantially greater resources and experience
than the Company and represent significant competition for the Company. Such
companies may succeed in developing products that are more effective or less
costly in treating coronary disease than The Heart Laser System and may be more
successful than the Company in manufacturing and marketing their products. No
assurance can be given that the Company's competitors or others will not succeed
in developing technologies, products or procedures that are more effective than
any being developed by the Company or that would render the Company's technology
and products obsolete or noncompetitive. Although the Company will continue to
work to develop new and improved products, the advent of either new devices or
new pharmaceutical agents could hinder the Company's ability to compete
effectively and have a material adverse effect on its business, financial
condition and results of operations.

RESEARCH AND DEVELOPMENT

         Research and development expenses were $2,672,000, $4,468,000 and
$5,158,000 for the years ended December 31, 1999, 1998 and 1997, respectively.
Since The Heart Laser System received final approval from the FDA in late August
1998, there has been a significant reduction in research and development
expenses related to clinical trials. The Company continues to refine The Heart
Laser System and is currently designing and developing next generation products
and technologies, including less invasive methods of performing myocardial
revascularization including catheters and other percutaneous delivery devices.
Several other companies are developing "percutaneous" methods of performing TMR,
known as "PMR". PMR procedures are performed via a catheter inserted through an
incision in a patient's leg. The Company has a proprietary PMR development
program underway. PMR may provide a less invasive method of creating channels in
a human heart if it can be proven safe and effective. No assurance can be given
that the Company's PMR development program will be successful.

         The Company continues to monitor all technologies that may be
applicable to TMR to keep it at the forefront of this field. No assurance can be
given that the Company's research and development goals will be implemented
successfully or that the Company will maintain its position in this market.

EMPLOYEES

         As of March 13, 2000, the Company had 48 full-time domestic employees,
including its executive officers. Of these, 16 are employed in general and
administrative activities, 19 are involved in sales and marketing, 7 are
involved in research and development and 6 are involved in manufacturing. The
Company also employs one part-time employee. None of the Company's employees are
represented by a union. In addition, the Company has 9 full time
employees/consultants for its international operations. Management considers its
relations with employees to be satisfactory.

ITEM 2.           DESCRIPTION OF PROPERTY.

         Since September 1996, the Company has leased its current 37,000 square
foot facility in Franklin, Massachusetts where it maintains its principal
executive offices and manufacturing operations. The lease expires in August
2001. The lease provides for two renewal periods of three years each. The total
base rental payments for the term of the lease are approximately $296,400 per
year plus operating and maintenance costs and real estate taxes.

ITEM 3.           LEGAL PROCEEDINGS.

         In September 1996, CardioGenesis filed a civil lawsuit in the United
States District Court for the Northern District of California asking the court
to declare the Company's synchronization patent (U.S. Patent No. 5,125,926)
invalid and unenforceable, or, alternatively, to find that CardioGenesis' TMR
and PMR lasers do not infringe this


                                       12


patent. The Company filed a counterclaim alleging that all of CardioGenesis' TMR
and PMR lasers infringe U.S. Patent No. 5,125,926. In January 1997,
CardioGenesis filed an opposition in the European Patent Office to have the
Company's German synchronization patent declared invalid. In April 1997, the
Company filed an infringement lawsuit against CardioGenesis and one of its
distributors in the Munich District Court alleging that CardioGenesis' TMR and
PMR lasers infringe the Company's German synchronization patent. The PLC patents
at issue in these lawsuits cover the Company's synchronization technology, which
the Company believes is a critical factor in increasing the safety of TMR and
PMR procedures.

         In January 1999, the Company settled its outstanding patent
infringement litigation with CardioGenesis who subsequently merged with Eclipse
Surgical Technologies, Inc. Under the settlement, CardioGenesis agreed that U.S.
Patent No. 5,125,926 and related international patents of the Company are valid
and enforceable. PLC granted CardioGenesis a non-exclusive worldwide license to
these patents in exchange for the payment of a license fee and ongoing royalties
over the life of the patents (at least 10 years unless the patents are all held
invalid in future lawsuits). As part of the settlement, CardioGenesis agreed to
pay the Company:

         -        a minimum of $2.5 million over the next 42 months; and

         -        license fees and ongoing royalties on sales of all covered
                  products for at least 10 years (unless the patents are all
                  held invalid in future lawsuits).

         In July 1997, an FDA advisory panel recommended against approval of
the Company's application to market The Heart Laser System in the United
States. Following this recommendation, the Company was named as defendant in
21 purported class action lawsuits filed between August 1997 and November
1997 in the United States District Court for the District of Massachusetts.
The lawsuits seek an unspecified amount of damages in connection with alleged
violations of the federal securities laws based on the Company's failure to
obtain a favorable FDA panel recommendation in 1997. Nineteen of these
complaints have been consolidated by the court into a single action for
pretrial purposes (hereafter referred to as the "federal suit"). Two of these
suits were voluntarily dismissed. The Company moved to dismiss all claims in
the federal suit. On March 26, 1999, the court issued an order dismissing
some, but not all, of the claims in the federal suit. The parties filed cross
motions for reconsideration and on October 12, 1999, the court dismissed
additional, but not all remaining claims in the federal suit. The Company has
also been named as a defendant in a lawsuit filed in Massachusetts Superior
Court in September 1998 (hereafter referred to as the "state suit") seeking
over $2 million in damages for alleged negligent misrepresentations and fraud
arising from the Company's failure to obtain a favorable FDA recommendation
in 1997. The Company cannot make a meaningful estimate of the amount or range
of loss that could result from an unfavorable outcome of these lawsuits, but
an unfavorable outcome could have a material adverse effect on the Company's
business, financial position and results of operations. The Company believes
that it has meritorious defenses to these litigation matters and continues to
vigorously defend itself in these matters.

         In August 1997, the Company received from the United States Securities
and Exchange Commission (the "Commission") an informal request for information
relating to the decision by the FDA Advisory Panel not to recommend approval of
The Heart Laser System in July 1997. The Company has responded and has not
received any further communication from the Commission regarding this matter
since June 1998.

         In February 1996, PLC Medical Systems, Inc. filed suit against Eclipse
Surgical Technologies, Inc. ("Eclipse") in the United States District Court for
the District of Massachusetts alleging copyright infringement and unfair and
deceptive trade practices based on Eclipse's misappropriation and copying of one
of PLC's confidential clinical study protocols. The Company settled this suit in
April 1999 on confidential terms. The settlement of the lawsuit did not have a
material impact on the Company's financial statements.

         In November 1998, a hospital in France, Centre Medico Chirurgical Foch
("Foch Hospital"), sued the Company's Portuguese subsidiary, PLC Sistemas
Medicos Internacionais Lda., and a third party, Johnson & Johnson Leasing GmbH,
in Paris, France alleging breach of contract. In October 1997, the French
Ministry of


                                       13


Health suspended commercial use of TMR devices in France. Foch Hospital is
seeking reimbursement of lease payments made for The Heart Laser System. The
Company intends to vigorously defend itself in this matter. A hearing on the
merits of the case has been held, however no decision has been rendered and a
meaningful estimate of the loss that could result from this matter has not been
made. However, the Company does not believe that the loss, if any, would have
a material adverse impact on the Company's financial condition.

         The Company is not involved in any other litigation of a material
nature.

ITEM 4.   SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

         Not applicable.


                                       14


                                     PART II

ITEM 5.   MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS.

         Since September 17, 1992, the Company's Common Stock has traded on the
American Stock Exchange ("AMEX") under the symbol "PLC". From March 3, 1992
through September 16, 1992, the Company's Common Stock was traded on the
over-the-counter market through the National Association of Securities Dealers
Automated Quotation System ("NASDAQ"). On March 13, 2000 the closing sale price
of the Company's Common Stock was $3.75 per share.

         For the periods indicated, the following table sets forth the range of
high and low sales prices for the Common Stock from January 1, 1998.



                                                                                      SALES
                                                                                      -----
                                                                             HIGH               LOW
                                                                             ----               ---
1998
- ----

                                                                                          
First Quarter..........................................................          $19.50              $7.75
Second Quarter.........................................................          $22.00              $9.13
Third Quarter..........................................................          $12.88              $3.25
Fourth Quarter.........................................................           $7.13              $2.75

1999
- ----

First Quarter..........................................................           $7.44              $2.38
Second Quarter.........................................................           $4.88              $2.31
Third Quarter..........................................................           $4.88              $2.63
Fourth Quarter.........................................................           $3.19              $1.81

2000
- ----

First Quarter (through March 13, 2000).................................           $4.63              $2.06


         As of March 13, 2000, there were approximately 728 record holders of
the Company's Common Stock. Management believes that there are approximately
16,000 beneficial owners of the Company's Common Stock.

DIVIDENDS

         The Company has never paid cash dividends. The Company currently
intends to retain all future earnings, if any, for use in its business and does
not anticipate paying any cash dividends in the foreseeable future.

ITEM 6.   SELECTED FINANCIAL DATA.

         The following selected financial data with respect to the Company for
the five years ended December 31, 1999, are derived from the audited financial
statements of the Company. The data should be read in conjunction with the
financial statements, related notes and other financial information included
elsewhere herein.


                                       15


                             SELECTED FINANCIAL DATA



                                                               FOR THE YEARS ENDED DECEMBER 31
                                       -------------- ---------------- --------------- --------------- ----------------
                                                1999             1998            1997            1996             1995
                                                ----             ----            ----            ----             ----
                                                    (ALL AMOUNTS ARE IN THOUSANDS EXCEPT PER SHARE DATA)
                                                                                             
STATEMENT OF OPERATIONS DATA:

Revenue:

Product sales.................               $ 8,400          $ 3,088         $ 5,687          $9,082          $11,938

Placement and service fees....                 3,236            2,605           3,254           2,790            1,407

Costs and expenses:

Cost of product sales.........                 3,615            1,945           2,721           2,911            4,177

Cost of placement and service fees             2,061            2,622           2,595           1,155              386

Selling, general and administrative           10,054           13,718          13,049           7,023            5,035

Research and development .....                 2,672            4,468           5,158           2,835            2,246
                                              ------           ------          ------          ------           -----

Income (loss) from operations.                (6,766)         (17,060)        (14,582)         (2,052)           1,501

Other income..................                   211              457             178             512              588
                                              ------           ------          ------          ------           -----

Income (loss) before income taxes             (6,555)         (16,603)        (14,404)         (1,540)           2,089

Provision for income taxes....                    --               --              --              --               85
                                              ------           ------          ------          ------           -----

Net income (loss).............               $(6,555)        $(16,603)       $(14,404)        $(1,540)          $2,004
                                             =======         ========        ========         ========          ======

Net income (loss) per share - Basic          $  (.32)         $  (.86)        $  (.84)         $ (.09)          $  .13
                                             =======          =======         =======          =======          ======

Net income (loss) per share - Diluted        $  (.32)         $  (.86)        $  (.84)         $ (.09)          $  .12
                                             =======          =======         =======          =======          ======

Shares used to compute net
 income (loss) per share - Basic              20,675           19,218          17,050          16,376           15,868

Shares used to compute net
 income (loss) per share - Diluted            20,675           19,218          17,050          16,376           16,590




                                                                       As of December 31
                                      -------------- --------------- ---------------- --------------- ----------------
                                               1999            1998             1997            1996             1995
                                               ----            ----             ----            ----             ----
                                                                                            
BALANCE SHEET DATA:

Working capital ..............                $5,459           $5,050          $12,793        $11,245          $13,541
Total assets..................                15,319           16,257           27,017         19,417           18,290
Long term obligations.........                    --               37              121             27               32
Secured borrowings ...........                 2,082               --               --             --               --
Stockholders' equity .........                 8,885           10,662           19,009         16,467           15,508



                                       16


ITEM 7.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
         OF OPERATIONS.

OVERVIEW

         The Company offers placement, purchase and leasing alternatives to
customers interested in acquiring The Heart Laser System. The Company has
developed a strategy to address the challenges of marketing high cost capital
equipment by offering The Heart Laser System on a usage basis to hospitals. The
particular structure of a usage based contract, including the length of
contract, price billed per procedure and end of term options for purchase,
depends primarily on whether the hospital is willing and able to commit to a
certain minimum volume of procedures over a defined period of time. If the
hospital cannot commit to a sufficient number of procedures, The Heart Laser
System may be installed with usage fees billed as agreed upon with the hospital.
The Company refers to this type of usage arrangement as a retained placement
contract. Under a retained placement contract, placement and service fee revenue
is recorded over the term of the usage agreement and The Heart Laser System
remains the property of the Company and is depreciated over the term of the
usage agreement.

         If the hospital is willing and able to commit to a sufficient number of
procedures such that the substantial risks and benefits of ownership of The
Heart Laser System have transferred to the hospital, then the Company classifies
the usage agreement as a minimum procedure sales contract. Under a minimum
procedure sales contract, the Company records product revenue, at a discounted
present value of the guaranteed minimum procedure payments, and records product
cost of sale at the time of acceptance of The Heart Laser System.

         The Company believes that retained placement and minimum procedure
sales contracts are appealing to hospitals when capital equipment funds are
scarce or unavailable or when it is difficult to predict early usage as is the
case with new technology such as TMR. The Company's financing arrangements with
leasing vendors enables the Company to monetize future payment streams
associated with certain agreements. If utilization becomes more predictable, the
Company expects a significant number of new accounts to opt for conventional
leasing, or direct purchase.

         The Heart Laser System is also sold to customers, and the related
sterile handpieces and other disposables are sold separately for each procedure.
These sales are classified as product sales.

         Customers are given the option to purchase service contracts to cover
the cost of maintaining The Heart Laser System beyond the applicable warranty
period. These service revenues are recorded ratably over the service contract
and are classified as a component of placement and service fees.

RESULTS OF OPERATIONS

YEAR ENDED DECEMBER 31, 1999 COMPARED TO YEAR ENDED DECEMBER 31, 1998

         Total revenues of $11,636,000 for the year ended December 31, 1999
increased $5,943,000 or 104% when compared to total revenues of $5,693,000 for
the year ended December 31, 1998. For the year ended December 31, 1999, product
sales of $8,400,000 increased $5,312,000 or 172% when compared to product sales
of $3,088,000 for the year ended December 31, 1998. The major factors in both
increases are primarily due to the 1999 periods reflecting increased sales of
The Heart Laser System and related disposables due to the Company's receipt of
FDA approval to market the Heart Laser System in August 1998, as well as license
and royalty fees associated with the CardioGenesis settlement.

         Placement and service fees of $3,236,000 for the year ended December
31, 1999 increased 24% from placement and service fees of $2,605,000 for the
year ended December 31, 1998. In May 1997, the Health Care Financing
Administration ("HCFA") instituted a non-coverage policy for transmyocardial
revascularization ("TMR") procedures performed on Medicare patients in the
United States. The HCFA announcement, coupled with delays in the FDA
Pre-Market Approval ("PMA") process, caused the Company to examine its
contractual requirements during 1997 and amend substantially all of its
retained placement contracts, temporarily replacing contractual minimum
billings with actual usage billings. Following approval of the PMA by the FDA
on August 20, 1998, the Company renegotiated usage agreements with its
customers on a case-by-case basis. The 1999 period reflects revenue from
these retained placement contracts with the renegotiated usage agreements
following FDA approval. The 1998 period reflects revenue primarily from
retained placement contracts with actual usage billings.

         Total gross profit increased to $5,960,000 or 51% of total revenues for
the year ended December 31, 1999


                                       17


as compared with the gross profit of $1,126,000 or 20% of total revenues for
the year ended December 31, 1998. In the 1998 period, the Company did not
generate sufficient sales volume to efficiently cover manufacturing costs,
resulting in lower gross margins. In 1999, gross margins improved as a result
of an increase in sales volumes and manufacturing cost reductions implemented
by the Company.

         Selling, general and administrative expenses of $10,054,000 for the
year ended December 31, 1999 decreased $3,664,000 or 27% when compared with
expenses of $13,718,000 for the year ended December 31, 1998. This reduction is
primarily due to a restructuring of the Company's workforce in April 1999. The
1999 periods reflect reduced headcount and compensation and related benefits
related to the reduced workforce.

         Research and development expenditures of $2,672,000 decreased
$1,796,000 or 40% for the year ended December 31, 1999 when compared with
expenditures of $4,468,000 for the year ended December 31, 1998. The decreases
in 1999 compared to 1998 reflect the reduced demands for clinical study
compilation and data preparation following the FDA approval for The Heart Laser
System in August 1999. In addition, in April 1999, the Company reduced its
workforce, and the 1999 periods reflect reduced headcount and compensation and
related benefits related to the reduced workforce.

         Other income of $211,000 for the year ended December 31, 1999 decreased
$246,000 or 54% when compared to other income of $457,000 for the year ended
December 31, 1998, primarily due to lower interest income as a result of lower
average cash balances in 1999 as compared to 1998.

         There was no provision for income tax for the years ended December 31,
1999 or 1998 due to the net losses of $6,555,000 and $16,603,000, respectively.

         The Company incurred a net loss for the year ended December 31, 1999 of
$6,555,000 compared with a net loss of $16,603,000 for the year ended December
31, 1998. The smaller net loss resulted from higher total revenues and higher
gross margin dollars coupled with lower overall operating expenses in 1999 when
compared with 1998.

YEAR ENDED DECEMBER 31, 1998 COMPARED TO YEAR ENDED DECEMBER 31, 1997

         Total revenues of $5,693,000 for the year ended December 31, 1998
decreased $3,248,000 or 36% when compared to total revenues of $8,941,000 for
the year ended December 31, 1997. For the year ended December 31, 1998, product
sales of $3,088,000 decreased $2,599,000 or 46% when compared to product sales
of $5,687,000 for the year ended December 31, 1997. The major factor in these
decreases is the decline in the number of sales transactions in 1998. In 1998,
the Company recorded revenue on six sales compared with revenue recognition on
ten sales in 1997.

         Placement and service fees of $2,605,000 for the year ended
December 31, 1998 decreased 20% from placement and service fees of $3,254,000
for the year ended December 31, 1997. Although the Company increased the
number of its retained placement contracts in 1998, revenue from these
contracts decreased. In May 1997, HCFA instituted a non-coverage policy for
TMR procedures performed on Medicare patients in the United States. The HCFA
announcement, coupled with delays in the FDA PMA process, caused the Company
to examine its contractual requirements during 1997 and amend substantially
all of its retained placement contracts, temporarily replacing contractual
minimal billings with actual usage billings. Following receipt of the PMA
from the FDA on August 20, 1998, the Company renegotiated usage agreements
with the customer based on a case-by-case basis.

         Total gross profit decreased to $1,126,000 or 20% of total revenues for
the year ended December 31, 1998


                                       18


as compared with total gross profit of $3,625,000 or 41% of total revenues
for the year ended December 31, 1997. This decrease resulted from three
factors. First, the decrease in revenue in 1998 generated fewer gross margin
dollars as compared to 1997. Second, the Company produced fewer of The Heart
Laser Systems than planned in 1998, resulting in unfavorable manufacturing
variances. These unfavorable manufacturing variances would continue until
production increases to levels which will fully absorb manufacturing
overhead. Third, depreciation on The Heart Laser Systems shipped pursuant to
placement contracts increased at a greater rate than the corresponding
revenue generated from placement contracts.

         Selling, general and administrative expenses of $13,718,000 for the
year ended December 31, 1998 increased $669,000 or 5% when compared with
expenses of $13,049,000 for the year ended December 31, 1997. The increase in
1998 reflects sales and marketing expenses incurred to initiate rapid
commercialization of The Heart Laser System upon receipt of the PMA.

         Research and development expenditures of $4,468,000 decreased $690,000
or 13% for the year ended December 31, 1998 when compared with expenditures of
$5,158,000 for the year ended December 31, 1997. The decrease in 1998 compared
to 1997 reflects the reduced demands for clinical study compilation and data
preparation following the FDA panel recommendation of approval for The Heart
Laser System, offset in part by higher costs associated with the development of
new products.

         Other income of $457,000 for the year ended December 31, 1998 increased
$279,000 or 157% when compared to other income of $178,000 for the year ended
December 31, 1997, primarily because of gains recorded in connection with
foreign currency transactions.

         There was no provision for income tax for the years ended December 31,
1998 or 1997 due to the net losses of $16,603,000 and $14,404,000, respectively.

         The Company incurred a net loss for the year ended December 31, 1998 of
$16,603,000 compared with a net loss of $14,404,000 for the year ended December
31, 1997. The larger net loss resulted from lower total revenues and lower gross
margin dollars in 1998 when compared with 1997.

LIQUIDITY AND CAPITAL RESOURCES

         At December 31, 1999, the Company had cash and cash equivalents of
$4,467,000

         Over the past three years, the Company incurred significant
operating losses and utilized significant amounts of cash to fund operations.
The Company is in a critical stage in its growth as it continues to
transition from a research and development company to a commercial company
with complete sales, marketing and production capabilities.

         During 1999, the Company implemented a number of programs to reduce
its consumption of cash, including operating expense reductions and
establishment of third party financing alliances to enable the Company to
obtain an upfront cash payment on certain of its minimum procedure sales
contracts. In April 1999, the Company announced a workforce restructuring to
further reduce operating expenses and concentrate the Company's resources on
its sales efforts.  The restructuring eliminated 27 of the 91 positions
within the Company as of April 23, 1999. During 1999, the Company also sold
1,316,140 shares of common stock resulting in proceeds to the Company (net of
all issuance costs) of approximately $3,800,000 to fund working capital
requirements.

                                       19


         Most recently, on March 28, 2000, the Company closed an equity
financing with two institutional investors at $2.00 per share. In conjunction
with this offer, the Company sold 2,683,000 shares of common stock, resulting
in proceeds to the Company (net of all issuance costs) of approximately
$5,000,000 and issued the placement agent a three year warrant for 61,326
shares of common stock at $3.15 per share. The Company may seek additional
financing through the issuance and sale of debt or equity securities, bank
financing, joint ventures or by other means. The availability of such
financing and the reasonableness of any related terms in comparison to market
conditions cannot be assured.

         While the Company is encouraged by recent developments with respect
to FDA approval and Medicare coverage for TMR procedures, the historical
absence of widespread reimbursement for the TMR procedure by third party
payers has limited demand for and use of The Heart Laser System. Although
Medicare reimbursement began in July 1999, and some private insurance plans
have begun reimbursing health care providers for TMR procedures using The
Heart Laser System, the Company believes that operating losses are likely to
continue until such time as third party payers begin to provide widespread
reimbursement to healthcare providers for use of The Heart Laser System.
Management believes that its existing cash resources and cash from operations
will meet working capital requirements over the next twelve months. However,
unanticipated decreases in operating revenues, increases in expenses or
further delays in the process of third party payers providing reimbursement
to healthcare providers, may adversely impact the Company's cash position and
require further cost reductions or the need to obtain additional financing.
No assurance can be given that the Company will be successful in achieving
broad commercial acceptance of The Heart Laser System or that the Company
will be able to operate profitably on a consistent basis. Should additional
financing not be available on terms and conditions acceptable to the Company,
additional actions may be required that could adversely impact the Company's
ability to continue to realize assets and satisfy liabilities in the normal
course of business. The financial statements do not include any adjustments
to reflect the possible future effects of these uncertainties.

         During the year ended December 31, 1999, the Company incurred a net
loss of $6,555,000, which resulted in the use of approximately $3,793,000 to
support operations. Cash used by investing activities was approximately $585,000
and primarily related to PLC's retained placement contract activity. Cash
provided by financing activities was approximately $3,979,000 and primarily
related to the net proceeds of $3,803,000 obtained from the sale of the
Company's common stock, $242,000 in secured borrowings, offset by principal
payments on capital lease obligations of $66,000.

         At December 31, 1999, the Company had U.S. net operating loss
carryforwards of approximately $40.8 million available to reduce future taxable
income, which expire at various dates through 2013, and the Company had foreign
net operating loss carryforwards of approximately $4.4 million. In addition,
various other deferred tax assets have been generated related primarily to
intercompany profit, accruals, and research and development tax credits. Because
the Company believes that, as of December 31, 1999, it is more likely than not,
that all of the deferred tax assets will not be realized, no tax benefit for
prior year losses and other deferred items has been provided. These amounts
could provide a benefit to the Company in the future in profitable years,
subject to the expirations noted.

         The Company and certain of its officers have been named as defendants
in 21 purported class action lawsuits filed between August 1997 and November
1997. See Note 5 in the accompanying consolidated financial statements for
further discussion.

         YEAR 2000

         In prior years, the Company discussed the nature and progress of its
plans to become Year 2000 ready. In late 1999, the Company completed its
remediation and testing of systems. As a result of those planning and
implementation efforts, the Company experienced no significant disruptions in
mission critical information technology and non-information technology systems
and believes those systems successfully responded to the Year 2000 date change.
The Company did not incur material expenses in 1999 in connection with
remediating its systems to become Year 2000 ready. The Company is not aware of
any material problems resulting from Year 2000 issues, either with its products,
its internal systems, or the products and services of third parties. The Company
will continue to monitor its mission critical computer applications and those of
its suppliers and vendors through the year 2000 to ensure that any latent Year
2000 matters that may arise are addressed completely.


                                       20


RISK FACTORS

OUR COMPANY HAS A HISTORY OF OPERATING LOSSES

         PLC Systems Inc. was founded in 1987. We have incurred operating losses
in every year of our existence except 1995. We have incurred net losses of
$6,555,000 for the year ended December 31, 1999, $16,603,000 for the year ended
December 31, 1998 and $14,404,000 for the year ended December 31, 1997. As of
December 31, 1999, we had an accumulated deficit of $74,691,000. We have not
achieved profitability and expect to continue to incur net losses for at least
the next fiscal year. Moreover, although our business is not seasonal in nature,
our revenues tend to vary significantly from fiscal quarter to fiscal quarter.

OUR COMPANY IS DEPENDENT ON ONE PRINCIPAL PRODUCT

         We develop and market one principal product: a patented high-powered
carbon dioxide laser system known as The Heart Laser System and related
disposables. Approximately 89% of our revenue in the fiscal year ended
December 31, 1999 and 90% in the fiscal year ended December 31, 1998 was
derived from The Heart Laser System.

OUR COMPANY MAY BE UNABLE TO RAISE NEEDED FUNDS

         As of December 31, 1999, we had cash and cash equivalents totaling
$4,467,000, a decrease of $379,000 from the balance of $4,846,000 we had as of
December 31, 1998. Based on our current operating plan, we anticipate that our
existing capital resources, together with cash from operations, should be
sufficient to meet our working capital requirements over the next twelve months.
If our business does not progress in accordance with our current business plan,
we may need to raise additional funds. We are currently exploring a number of
alternatives to raise additional capital. We may not be able to raise additional
capital upon satisfactory terms or at all, and our business, financial condition
and results of operations could be materially and adversely affected. To the
extent that we raise additional capital by issuing equity or convertible
securities, ownership dilution to our stockholders will result.

IN ORDER TO COMPETE EFFECTIVELY, THE HEART LASER SYSTEM NEEDS TO GAIN COMMERCIAL
ACCEPTANCE

         The Heart Laser System is designed for use in the treatment of coronary
artery disease in a surgical laser procedure we pioneered known as
transmyocardial revascularization. Transmyocardial revascularization is commonly
referred to in our industry as "TMR." TMR is a new technology that is only
recently becoming known. We may never achieve widespread commercial acceptance.
To be successful, we need to:

         -        demonstrate to the medical community in general, and to heart
                  surgeons and cardiologists in particular, that TMR procedures
                  and The Heart Laser System are effective, relatively safe and
                  cost effective;

         -        train heart surgeons to perform TMR procedures using The Heart
                  Laser System; and

         -        obtain widespread insurance reimbursement for the TMR
                  procedure.

To date, we have trained only a limited number of heart surgeons and will need
to expand our marketing and training capabilities.

         Although The Heart Laser System has received FDA approval and the CE
Mark, it has not yet received widespread commercial acceptance. If we are unable
to maintain regulatory approvals or to achieve widespread commercial acceptance
of The Heart Laser System, our business, financial condition and results of
operations will be materially and adversely affected.

RESULTS OF LONG-TERM CLINICAL STUDIES MAY ADVERSELY AFFECT OUR BUSINESS

         Patients have only been treated with The Heart Laser System since
January 1990, and, as a result, there have been few long-term follow-up studies.
If patients suffer harmful, long-term consequences from The Heart Laser System,


                                       21


our business, financial condition and results of operations will be materially
and adversely affected.

RAPID TECHNOLOGICAL CHANGES IN OUR INDUSTRY COULD MAKE THE HEART LASER SYSTEM
OBSOLETE

         Our industry is characterized by rapid technological change and intense
competition. New technologies and products and new industry standards will
develop at a rapid pace. They could make The Heart Laser System obsolete. The
advent of new devices and procedures and advances in new drugs and genetic
engineering are especially threatening. Our future success will depend upon our
ability to develop and introduce product enhancements to address the needs of
our customers. Material delays in introducing product enhancements may cause
customers to forego purchases of our product and purchase those of our
competitors.

         Many of our competitors have substantially greater financial resources
and are in a better financial position to exploit marketing and research and
development opportunities. Our competitors' products use different types of
lasers than we use in The Heart Laser System, including holmium and excimer
lasers that may gain more widespread market acceptance than The Heart Laser
System. In addition, we believe that several companies are attempting to develop
less invasive methods of performing TMR procedures. These new methods may
eliminate the need to make an incision in the patient's chest, reducing costs
and speeding recovery. These new technologies and methods may erode the
potential TMR market, which could have a material adverse effect on our
business, financial condition and results of operations.

WE MUST RECEIVE AND MAINTAIN GOVERNMENT APPROVAL IN ORDER TO MARKET OUR PRODUCT

         GENERAL

         The Heart Laser System and our manufacturing activities are subject
to extensive, rigorous and changing federal and state regulation in the
United States and to similar regulatory requirements in other major markets,
including the European Community and Japan. To date, we have received
regulatory approval in the United States and have the ability to market The
Heart Laser System in the European Community (excluding France). We have not
received regulatory approval in Japan. Without regulatory approval, we cannot
market The Heart Laser System in Japan. Even if granted, regulations may
significantly restrict the use of The Heart Laser System. The process of
obtaining and maintaining required regulatory approval is lengthy, expensive
and uncertain.

         UNITED STATES -- ALTHOUGH WE HAVE RECEIVED FDA APPROVAL, THE FDA HAS
         RESTRICTED THE USE OF THE HEART LASER SYSTEM AND COULD REVERSE ITS
         APPROVAL AT ANY TIME

         In August 1998, we received FDA approval to market a laser system for
TMR procedures. However, the FDA:

         -        has not allowed us to market The Heart Laser System to treat
                  patients whose condition is amenable to conventional
                  treatments, such as heart bypass surgery and angioplasty; and

         -        could reverse its ruling and prohibit use of The Heart Laser
                  System at any time.

         EUROPE -- ALTHOUGH WE HAVE THE ABILITY TO MARKET OUR PRODUCT IN THE
         EUROPEAN COMMUNITY, THE MEMBERS OF THe EUROPEAN COMMUNITY COULD, AND
         FRANCE HAS, PROHIBITED COMMERCIAL USE OF THE HEART LASER SYSTEM

         The Heart Laser System received the CE Mark from the European Community
in 1995. However:

         -        the European Community could reverse its ruling and prohibit
                  use of The Heart Laser System at any time;

         -        we cannot market The Heart Laser System in France; and

         -        other European Community countries could prohibit or restrict
                  use of The Heart Laser System.

Despite receiving the CE Mark, The French Ministry of Health instituted a
commercial moratorium on TMR procedures in October 1997. In its opinion, the
procedure is considered to be experimental and should only be


                                       22


performed within the context of a clinical study. An evaluation of the safety of
The Heart Laser System is currently under review by a panel of French experts.
There can be no assurance that this moratorium will be lifted on a timely basis
or at all.

         ASIA -- WE CANNOT MARKET OUR PRODUCT IN MAJOR ASIAN MARKETS UNTIL WE
RECEIVE GOVERNMENT APPROVAL

         We believe that Japan represents the largest potential market for The
Heart Laser System in Asia. Prior to marketing The Heart Laser System in Japan,
we must receive approval from the Japanese Government. This approval requires a
clinical study in Japan with at least 60 patients. This study was completed in
1998. Although the results of this study have been submitted to the Japanese
Government, we do not know whether the clinical study will be sufficient or
when, if ever, we will receive approval to sell The Heart Laser System in Japan.

         Additional regulatory applications are pending in Taiwan. We cannot be
sure when, if at all, we will obtain regulatory approval in any particular
country.

ASSERTING AND DEFENDING INTELLECTUAL PROPERTY RIGHTS MAY IMPACT OUR RESULTS OF
OPERATIONS

         In our industry, competitors often assert intellectual property
infringement claims against one another. The success of our business depends on
our ability to successfully defend our intellectual property. Future litigation
may have a material impact on our financial condition even if we are successful
in marketing The Heart Laser System. We may not be successful in defending or
asserting our intellectual property rights.

         An adverse outcome in any litigation or interference proceeding could
subject us to significant liabilities to third parties and require us to cease
using the technology that is at issue or to license the technology from third
parties. In addition, a finding that any of our intellectual property is invalid
could allow our competitors to more easily and cost-effectively compete with us.
Thus, an unfavorable outcome in any patent litigation or interference proceeding
could have a material adverse effect on our business, financial condition or
results of operations.

         The cost to us of any patent litigation or interference proceeding
could be substantial. Uncertainties resulting from the initiation and
continuation of patent litigation or interference proceedings could have a
material adverse effect on our ability to compete in the marketplace. Patent
litigation and interference proceedings may also absorb significant management
time.

WE MAY BE SUBJECT TO PRODUCT LIABILITY LAWSUITS; OUR INSURANCE MAY NOT BE
SUFFICIENT TO COVER DAMAGES

         We may be subject to product liability claims. The United States
Supreme Court has stated that compliance with FDA regulations will not shield a
company from common-law negligent design claims or manufacturing and labeling
claims based on state rules. Such claims may absorb significant management time
and could degrade the reputation of PLC and the marketability of The Heart Laser
System. If product liability claims are made with respect to our products, we
may need to recall the implicated product which could have a material adverse
effect on our business, financial condition and results of operations. In
addition, although we maintain product liability insurance with a per claim and
yearly aggregate maximum of $10 million, subject to a $50,000 per occurrence and
$250,000 aggregate self-insured deductible, we cannot be sure that our insurance
will be adequate to cover potential product liability lawsuits. Our insurance is
expensive and in the future may not be available on acceptable terms, if at all.
If a successful product liability claim or series of claims exceeded our
insurance coverage, it could have a material adverse effect on our business,
financial condition and results of operations.

WE ARE DEPENDENT ON CERTAIN SUPPLIERS

         We believe that some of the components for our laser systems, most
notably the laser head, may only be available from one or a limited number of
suppliers. Any interruption in supply from these suppliers could prevent us from
meeting commercial demands for The Heart Laser System, which could have a
material adverse effect on our business, financial condition and results of
operations.


                                       23


RISKS ASSOCIATED WITH INTERNATIONAL OPERATIONS

         A portion of our product sales are generated from operations outside of
the United States. Establishing and expanding international sales can be
expensive. Managing and overseeing foreign operations may be difficult and
products may not receive market acceptance. Risks of doing business outside the
U.S. include the following: agreements may be difficult to enforce and
receivables difficult to collect through a foreign country's legal system;
foreign customers may have longer payment cycles; foreign countries may impose
additional withholding taxes or otherwise tax PLC's foreign income, impose
tariffs or adopt other restrictions on foreign trade; U.S. export licenses may
be difficult to obtain; and the protection of intellectual property in foreign
countries may be more difficult to enforce. There can be no assurance that our
international business will grow or that any of the foregoing risks will not
result in a material adverse effect on PLC.

WE HAVE BEEN SUED FOR ALLEGED VIOLATIONS OF SECURITIES LAW

         In July 1997, an FDA advisory panel recommended against approval of our
application to market The Heart Laser System. Following this recommendation, we
were named as defendant in 21 purported class action lawsuits filed between
August 1997 and November 1997 in the United States District Court for the
District of Massachusetts. The lawsuits seek an unspecified amount of damages in
connection with alleged violations of the federal securities laws based on our
failure to obtain a favorable FDA panel recommendation in 1997. Nineteen of
these complaints have been consolidated by the court into a single action for
pretrial purposes and two suits were voluntarily dismissed. The Company moved to
dismiss all of the remaining claims. On March 26, 1999, the court issued an
order dismissing some, but not all of the remaining claims. The parties both
filed motions for reconsideration and on October 12, 1999, the court dismissed
additional, but not all remaining claims. We cannot make a meaningful estimate
of the amount or range of loss that could result from an unfavorable outcome of
these lawsuits. We may not be able to pay the amount of any judgment against us.
An unfavorable outcome in this litigation could have a material adverse effect
on our business, financial position and results of operations.

BECAUSE WE ARE INCORPORATED IN CANADA, YOU MAY NOT BE ABLE TO ENFORCE JUDGMENTS
AGAINST US AND OUR CANADIAN DIRECTORS

         Under Canadian law, you may not be able to enforce a judgment issued by
courts in the United States against us or our Canadian directors. The status of
the law in Canada is unclear as to whether a U.S. citizen can enforce a judgment
from a U.S. court in Canada for violations of U.S. securities laws. A separate
suit may need to be brought directly in Canada.

ANTITAKEOVER PROVISIONS MAY PREVENT YOU FROM REALIZING A PREMIUM RETURN

         Provisions of Canadian law could make it more difficult for a third
party to acquire us, even if the acquisition would be beneficial to you.
Specifically, Canadian law requires any person who makes a tender offer that
would increase the person's stock ownership to more than 20% of our outstanding
common stock to make a tender offer for all of our common stock. These
provisions could prevent you from realizing the premium return that stockholders
may realize in conjunction with corporate takeovers.

         In addition, the Company has three classes of directors, with
approximately one-third elected each year for a three-year term. These
provisions may have the effect of delaying or preventing a corporate takeover or
a change in our management. This could adversely affect the market price of your
common stock.

THE MARKET PRICE OF OUR STOCK MAY FALL IF OTHER STOCKHOLDERS SELL THEIR STOCK

         If our stockholders sell substantial amounts of our common stock in the
public market, the market price of our common stock could fall. Such sales also
might make it more difficult for us to sell equity or equity-related securities
in the future at a price we deem appropriate.


                                       24


THE VALUE OF YOUR COMMON STOCK MAY DECREASE IF OTHER SECURITY HOLDERS EXERCISE
THEIR OPTIONS AND WARRANTS

         As shown in the table below, we have reserved an additional 3,023,026
shares of common stock for future issuance upon exercise or conversion of
outstanding options and redeemable warrants.



                                    Range of                  Weighted              Shares Reserved
                                    Exercise/             Average Exercise/            for Future
                                Conversion Prices         Conversion Price              Issuance
                                -----------------         ----------------              --------

                                                                          
Options                           $2.00 - $8.88                 $3.84                    2,868,162

Redeemable Warrants              $15.78 - $27.81               $21.33                      154,864
                                                                                           -------

Total                                                                                    3,023,026
                                                                                         =========


We may issue additional options and warrants in the future. If any of these
securities are exercised, you may experience significant dilution in the market
value and earnings per share of your common stock.

WE HAVE NO INTENTION TO PAY DIVIDENDS

         We have never paid any cash dividends on our common stock. We currently
intend to retain all future earnings, if any, for use in our business and do not
expect to pay any dividends in the foreseeable future.

OUR ACTUAL RESULTS COULD DIFFER MATERIALLY FROM THOSE ANTICIPATED IN
FORWARD-LOOKING STATEMENTS

         This annual report and information incorporated by reference contain
forward-looking statements within the meaning of Section 27A of the Securities
Act of 1933 and Section 21E of the Securities Exchange Act of 1934.
Forward-looking statements deal with our current plans and expectations and
involve known and unknown risks and uncertainties. Statements containing terms
such as:

          -    believes,
          -    does not believe,
          -    plans,
          -    expects,
          -    intends,
          -    estimates,
          -    anticipates,

and other phrases of similar meaning are considered to contain uncertainty and
are forward-looking statements.

         No forward-looking statement is a guarantee of future performance. Our
actual results could differ materially from those anticipated in these
forward-looking statements. We make cautionary statements in certain sections of
this annual report, including in the risk factors identified above, and in
materials incorporated herein by reference. You should read these cautionary
statements as being applicable to all related forward-looking statements,
wherever they appear in this annual report, in the materials referred to in this
annual report, in the materials incorporated by reference into this annual
report or in our press releases. You should not place undue reliance on any
forward-looking statement.

ITEM 7A.      QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK


                                       25


         A portion of the Company's operations consists of sales activities in
foreign jurisdictions. The Company manufactures its products exclusively in the
United States and sells the products in the United States and abroad. As a
result, the Company's financial results could be significantly affected by
factors such as changes in foreign currency exchange rates or weak economic
conditions in the foreign markets in which the Company distributes its products.
The Company's operating results are exposed to changes in exchange rates
between the U.S. dollar and foreign currencies, especially the Swiss Franc and
the German Mark. When the U.S. dollar strengthens against the Franc or Mark, the
value of nonfunctional currency sales decreases. When the U.S. dollar weakens,
the functional currency amount of sales increases. Overall, the Company's
support of its foreign operations results in a benefit of a stronger U.S.
dollar, but is adversely affected by a weaker U.S. dollar relative to major
currencies worldwide. The Company does not believe that its exposure is
significant.

         The Company's interest income and expense are most sensitive to changes
in the general level of U.S. interest rates. In this regard, changes in U.S.
interest rates affect the interest earned on the Company's cash equivalents as
well as interest paid on its debt.

ITEM 8.     FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.

         All financial statements required to be filed hereunder are filed as
Appendix A hereto, are listed under Item 14(a) and are incorporated herein by
reference.

ITEM 9.     CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
            FINANCIAL DISCLOSURE.

         Not applicable.


                                       26


                                    PART III

ITEM 10.    DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

         This information required by this item is incorporated herein by
reference from the Company's Definitive Proxy Statement to be filed with the
Securities and Exchange Commission in connection with the Company's 2000 Annual
Meeting of Stockholders (the "Definitive Proxy Statement") under the caption
"Item No. 1 - Election of Directors".

ITEM 11.    EXECUTIVE COMPENSATION

         This information required by this item is incorporated herein by
reference from the Company's Definitive Proxy Statement under the caption "Item
No. 1 - Election of Directors".

ITEM 12.    SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

         This information required by this item is incorporated herein by
reference from the Company's Definitive Proxy Statement under the caption "Item
No. 1 - Election of Directors - Beneficial Ownership of Common Stock.

ITEM 13.    CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

         This information required by this item is incorporated herein by
reference from the Company's Definitive Proxy Statement under the caption
"Certain Relationships and Related Transactions".


                                       27


                                     PART IV

ITEM 14.    EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K.

         (a) FINANCIAL STATEMENTS. The following documents are filed as Appendix
A hereto and are included as part of this Annual Report on Form 10-K.



         PLC SYSTEMS INC.                                                                              PAGE
                                                                                                       ----
                                                                                                  
            Report of Independent Auditors.....................................................        F-2
            Consolidated Balance Sheets as of December 31, 1999 and 1998 ......................        F-3
            Consolidated Statements of Operations for the years ended
              December 31, 1999, 1998 and 1997.................................................        F-4
            Consolidated Statements of Stockholders' Equity for the years ended
              December 31, 1999, 1998 and 1997.................................................        F-5
            Consolidated Statements of Cash Flows for the years ended
              December 31, 1999, 1998 and 1997.................................................        F-6
            Notes to Consolidated Financial Statements.........................................        F-7

            Schedule II                 Valuation and Qualifying Accounts......................        S-1


         All other schedules for which provision is made in the applicable
accounting regulation of the Securities and Exchange Commission are not required
under the related instructions or are inapplicable, and therefore have been
omitted.

         (b)      REPORTS ON FORM 8-K

                  (1) On December 30, 1999, PLC filed a Current Report on Form
         8-K with the Securities and Exchange Commission announcing that Mark R.
         Tauscher had been appointed president, chief executive officer and a
         director of PLC.

         (c) EXHIBITS. The list of Exhibits filed as part of this Annual Report
on Form 10-K are set forth on the Exhibit Index immediately preceding such
exhibits, and is incorporated herein by this reference.

         (d)      FINANCIAL STATEMENT SCHEDULES. See Item 14(a) above.


                                       28


                                   SIGNATURES

    PURSUANT TO THE REQUIREMENTS OF SECTION 13 OR 15(d) OF THE SECURITIES
EXCHANGE ACT OF 1934, THE REGISTRANT HAS DULY CAUSED THIS REPORT TO BE SIGNED ON
ITS BEHALF BY THE UNDERSIGNED, THEREUNTO DULY AUTHORIZED.

                                     PLC SYSTEMS INC.

Date:   March 30, 2000               By:   /s/ Mark R. Tauscher
                                        ---------------------------------------
                                           Mark R. Tauscher
                                           President and Chief Executive Officer

            PURSUANT TO THE REQUIREMENTS OF THE SECURITIES EXCHANGE ACT OF 1934,
THIS REPORT HAS BEEN SIGNED BY THE FOLLOWING PERSONS ON BEHALF OF THE REGISTRANT
AND IN THE CAPACITIES AND ON THE DATE INDICATED.


                   Name                                    Capacity                                   Date
                   ----                                    --------                                   ----
                                                                                          
     /s/  Mark R. Tauscher                     President and Chief Executive Officer             March 30, 2000
- ---------------------------------------        (Principal Executive Officer)
          Mark R. Tauscher


     /s/  James G. Thomasch                    Chief Financial Officer                           March 30, 2000
- ---------------------------------------        (Principal Financial and Accounting  Officer)
          James G. Thomasch


     /s/  Edward H. Pendergast                 Chairman of the Board of Directors                March 30, 2000
- ---------------------------------------
          Edward H. Pendergast

     /s/  William C. Dow                       Director                                          March 30, 2000
- ---------------------------------------
          William C. Dow

     /s/  Kevin J. Dunn                        Director                                          March 30, 2000
- ---------------------------------------
          Kevin J. Dunn

     /s/  Alan H. Magazine                     Director                                          March 30, 2000
- ---------------------------------------
          Alan Magazine

     /s/  H.B. Brent Norton, M.D.              Director                                          March 30, 2000
- ---------------------------------------
          H.B. Brent Norton, M.D.


     /s/  Kenneth J. Pulkonik                  Director                                          March 30, 2000
- ---------------------------------------
          Kenneth J. Pulkonik

     /s/  Robert I. Rudko, PH.D.               Director                                          March 30, 2000
- ---------------------------------------
          Robert I. Rudko, Ph.D.


     /s/  Roberts A. Smith, PH.D.              Director                                          March 30, 2000
- ---------------------------------------
          Roberts A. Smith, Ph.D.


                                       29


                                   APPENDIX A




                                PLC SYSTEMS INC.
                        CONSOLIDATED FINANCIAL STATEMENTS
                  FOR THE YEARS ENDED DECEMBER 1999, 1998, 1997


                                PLC SYSTEMS INC.
                   INDEX TO CONSOLIDATED FINANCIAL STATEMENTS



                                                                                                       Page
                                                                                                       ----

                                                                                                 
Report of Independent Auditors.........................................................................F-2

Consolidated Balance Sheets as of December 31, 1999 and 1998...........................................F-3

Consolidated Statements of Operations for the years ended December 31, 1999, 1998
   and 1997 ...........................................................................................F-4

Consolidated Statements of Stockholders' Equity for the years ended December 31, 1999,
   1998 and 1997.......................................................................................F-5

Consolidated Statements of Cash Flows for the years ended December 31, 1999, 1998
   and 1997............................................................................................F-6

Notes to Consolidated Financial Statements.............................................................F-7

Financial Statement Schedule:

  Schedule II - Valuation and Qualifying Accounts......................................................S-1



                         REPORT OF INDEPENDENT AUDITORS

To The Board of Directors and Stockholders of
PLC Systems Inc.

We have audited the accompanying consolidated balance sheets of PLC Systems Inc.
as of December 31, 1999 and 1998, and the related consolidated statements of
operations, stockholders' equity and cash flows for each of the three years in
the period ended December 31, 1999. These financial statements are the
responsibility of the Company's management. Our responsibility is to express an
opinion on these financial statements based on our audits.

We conducted our audits in accordance with auditing standards generally accepted
in the United States. Those standards require that we plan and perform the audit
to obtain reasonable assurance about whether the financial statements are free
of material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements. An audit
also includes assessing the accounting principles used and significant estimates
made by management, as well as evaluating the overall financial statement
presentation. We believe that our audits provide a reasonable basis for our
opinion.

In our opinion, the consolidated financial statements referred to above present
fairly, in all material respects, the consolidated financial position of PLC
Systems Inc. at December 31, 1999 and 1998, and the consolidated results of its
operations, stockholders' equity and cash flows for each of the three years in
the period ended December 31, 1999 in conformity with accounting principles
generally accepted in the United States.


                                            /s/ Ernst & Young LLP

                                             Ernst & Young LLP

Boston, Massachusetts
February 18, 2000,
except for Note 12,
as to which date is March 28, 2000


                                     F - 2


                                PLC SYSTEMS INC.
                           CONSOLIDATED BALANCE SHEETS
                           December 31, 1999 and 1998



                                                                                1999                1998
                                                                                ----                ----
                                                                                     (In thousands)

                                                       ASSETS

                                                                                           
Current assets:
     Cash and cash equivalents                                                   $ 4,467           $ 4,846
     Accounts receivable, net                                                      1,894             2,262
     Lease receivables, net                                                          642                 -
     Inventories, net                                                              2,348             2,953
     Prepaid expenses and other current assets                                       460               547
                                                                                 -------           -------
         Total current assets                                                      9,811            10,608

Equipment, furniture and leasehold improvements, net                               3,336             5,091
Lease receivables, net                                                             1,782                -
Other assets                                                                         390               558
                                                                                 -------           -------
         Total assets                                                            $15,319           $16,257
                                                                                 =======           =======

                      LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:
     Accounts payable                                                            $ 1,338           $   986
     Accrued clinical costs                                                          769             1,016
     Accrued compensation                                                            653               989
     Accrued expenses                                                                630             1,199
     Deferred revenue                                                                138               195
     Secured borrowings                                                              824               240
     Convertible debentures                                                            -               934
                                                                                 -------           -------
         Total current liabilities                                                 4,352             5,559

Capital lease obligations                                                              -                37
Secured borrowings                                                                 2,082                 -
Commitments and contingencies

Stockholders' equity:
Preferred stock, no par value, 5,000 shares authorized,
  none issued and outstanding
Common stock, no par value, unlimited shares authorized,
  21,223 shares issued and outstanding in 1999,
  50,000 shares authorized, and
  19,740 shares issued and outstanding in 1998                                    84,380            79,521
Accumulated deficit                                                              (74,691)          (68,136)
Accumulated other comprehensive loss                                                (804)             (724)
                                                                                 -------           -------
                                                                                   8,885            10,661
                                                                                 -------           -------
Total liabilities and stockholders' equity                                       $15,319           $16,257
                                                                                 =======           =======


The accompanying notes are an integral part of the consolidated financial
statements.


                                     F - 3


                                PLC SYSTEMS INC.
                      CONSOLIDATED STATEMENTS OF OPERATIONS
              For The Years Ended December 31, 1999, 1998 and 1997



                                                                      1999             1998             1997
                                                                    -------          --------         --------
                                                                     (In thousands, except per share data)
                                                                                            
Revenue:
     Product sales                                                  $ 8,400          $  3,088          $ 5,687
     Placement and service fees                                       3,236             2,605            3,254
                                                                    -------          --------         --------
          Total revenues                                             11,636             5,693            8,941

Cost of revenues:
     Product sales                                                    3,615             1,945            2,721
     Placement and service fees                                       2,061             2,622            2,595
                                                                    -------          --------         --------
          Total cost of revenues                                      5,676             4,567            5,316
                                                                    -------          --------         --------

Gross Profit                                                          5,960             1,126            3,625

Operating expenses:
     Selling, general and administrative                             10,054            13,718           13,049
     Research and development                                         2,672             4,468            5,158
                                                                    -------          --------         --------
          Total operating expenses                                   12,726            18,186           18,207
                                                                    -------          --------         --------

Loss from operations                                                 (6,766)          (17,060)         (14,582)

Other income, net                                                       211               457              178
                                                                    -------          --------         --------
Net loss                                                            $(6,555)         $(16,603)        $(14,404)
                                                                    =======          ========         ========

Net loss per share - Basic and Diluted                              $ (.32)          $   (.86)        $   (.84)

Shares used to compute net loss per share
          - Basic and Diluted                                        20,675            19,218           17,050



The accompanying notes are an integral part of the consolidated financial
statements.

                                     F - 4



                                PLC SYSTEMS INC.
                 CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
              For The Years Ended December 31, 1999, 1998 and 1997




                                                                                                 Accumulated
                                                        Common Stock                                Other
                                                        ------------             Accumulated    Comprehensive
                                                    Shares          Amount         Deficit           Loss           Total
                                                    ------          ------         -------           ----           ------
                                                                               (In Thousands)
                                                                                                
Balance, December 31, 1996                           16,513        $ 54,030        $(37,129)       $   (434)       $ 16,467
Exercise of stock options                               435           1,909               -               -           1,909
Exercise of warrants                                     17              94               -               -              94
Conversion of debentures                              1,403          14,465               -               -          14,465
Issuance of warrants                                      -             617               -               -             617
Comprehensive loss:
Net loss                                                  -               -         (14,404)              -         (14,404)
Foreign currency translation                              -               -               -            (139)           (139)
                                                                                                                   --------
Total comprehensive loss                                                                                            (14,543)
                                                   --------        --------        --------        --------        --------
Balance, December 31, 1997                           18,368          71,115         (51,533)           (573)         19,009
Exercise of stock options                               142             623               -               -             623
Conversion of 5% debentures due 2002                    577           3,923               -               -           3,923
Conversion of debentures due 2003                       653           3,810               -               -           3,810
Issuance of warrants                                      -              50               -               -              50
Comprehensive loss:
Net loss                                                  -               -         (16,603)              -         (16,603)
Foreign currency translation                              -               -               -            (151)           (151)
                                                                                                                   --------
Total comprehensive loss                                                                                            (16,754)
                                                   --------        --------        --------        --------        --------
Balance, December 31, 1998                           19,740        $ 79,521        $(68,136)       $   (724)       $ 10,661
Exercise of stock options                                 4              17               -               -              17
Conversion of debentures due 2003                       163             972               -               -             972
Issuance of common stock                              1,316           3,786                                           3,786
Compensation expense                                      -              84               -               -              84
Comprehensive loss:
Net loss                                                  -               -          (6,555)              -          (6,555)
Foreign currency translation                                                                            (80)            (80)
                                                                                                                   --------
Total comprehensive loss                                                                                             (6,635)
                                                   --------        --------        --------        --------        --------
Balance, December 31, 1999                           21,223        $ 84,380        $(74,691)       $   (804)       $  8,885
                                                   ========        ========        ========        ========        ========



The accompanying notes are an integral part of the consolidated
financial statements.


                                     F - 5


                                PLC SYSTEMS INC.
                      CONSOLIDATED STATEMENTS OF CASH FLOWS
              For The Years Ended December 31, 1999, 1998 and 1997



                                                                           1999         1998             1997
                                                                           ----         ----             ----
                                                                                 (In thousands)
                                                                                           
Operating activities:
   Net loss                                                            $(6,555)      $(16,603)      $(14,404)

   Adjustments to reconcile net loss to
      net cash used for operating activities:
        Depreciation and amortization                                    2,378           3,170          2,007
        Compensation on stock options                                       84                -              -
        Change in assets and liabilities:
             Accounts receivable                                           313           (973)          1,389
             Inventories                                                   607           (475)          (136)
             Prepaid expenses and other assets                             234              89           (20)
             Accounts payable                                              342              82             24
             Deferred revenue                                             (57)             142           (77)
             Accrued liabilities                                       (1,139)             304          1,163
                                                                       -------         -------        --------
Net cash used for operating activities                                 (3,793)        (14,264)        (10,054)

Investing activities:
   Purchase of fixed assets                                            (1,166)         (2,574)        (2,642)
   Retirement of fixed assets at net book value                           581               -              -
   Purchase of marketable securities                                         -         (1,986)       (17,827)
   Maturities of marketable securities                                       -          14,831         10,452
                                                                       -------         -------        --------
Net cash provided by (used for) investing activities                     (585)          10,271       (10,017)

Financing activities:
   Net proceeds from sale of common stock                                3,803             623          2,003
   Secured borrowing                                                       242             240              -
   Principal payments on capital lease obligations                        (66)            (79)           (25)
   Issuance of 5% Convertible Debentures, net of
      issuance costs                                                         -               -         18,779
   Issuance of Convertible Debentures, net of issuance costs                 -           4,659              -
                                                                       -------         -------        --------
Net cash provided by financing activities                                3,979           5,443         20,757

Effect of exchange rate changes on cash and cash equivalents                20            (88)          (241)
                                                                       -------         -------        --------
Net increase (decrease) in cash and cash equivalents                     (379)           1,362            445

Cash and cash equivalents at beginning of year                           4,846           3,484          3,039
                                                                       -------         -------        --------
Cash and cash equivalents at end of year                               $ 4,467         $ 4,846        $ 3,484
                                                                       =======         =======        =======

Non-Cash Financing Activities:
   Conversion of Convertible Debentures and accrued
      interest into Common Stock                                         $ 972         $ 7,733       $ 14,465
   Ascribed warrant value                                                   -               50            617
   Capital leases                                                           -                -            150



The accompanying notes are an integral part of the consolidated financial
statements.


                                     F - 6




                                PLC SYSTEMS INC.
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                December 31, 1999

1.       NATURE OF BUSINESS

         PLC Systems Inc. ("PLC" or the "Company") has developed a patented
high-powered carbon dioxide laser system known as The Heart Laser System for
use in the treatment of coronary artery disease in a surgical laser
procedure, pioneered by the Company and its clinical investigators, known as
transmyocardial revascularization ("TMR"). TMR is a new laser based treatment
for relieving debilitating pain in patients suffering from severe coronary
artery disease ("CAD"). The Company's CO2 laser is used by a cardiovascular
surgeon to create between 20 and 40 tiny channels in the heart wall of a
patient suffering from severe CAD. Each TMR procedure requires a sterile,
single use, TMR kit containing assorted TMR handpieces, drapes and other
disposable items.

2.       SIGNIFICANT ACCOUNTING POLICIES

         BASIS OF PRESENTATION

         The consolidated financial statements include the accounts of PLC
Systems Inc. (PLC or the "Company") and its five wholly owned subsidiaries, PLC
Medical Systems, Inc., PLC Sistemas Medicos GmbH, PLC Medical Systems AG, PLC
Medical Systems Asia/Pacific Pte Ltd, and PLC Medical Systems Australia Pty Ltd.
All intercompany accounts and transactions have been eliminated. Certain prior
year amounts may have been reclassified to conform to the current year's
presentation.

         These consolidated financial statements have been prepared in
accordance with U.S. generally accepted accounting principles (GAAP). Had the
statements been prepared in accordance with Canadian GAAP, certain transactions
in 1998 would have been accounted for differently. Under Canadian GAAP, the
Convertible Debentures, net of issuance costs, would be classified as equity
since the Company has the right to settle the principal and interest amounts due
on the debentures by issuing common stock.


                                     F - 7


         Accordingly, if the accompanying financial statements had been prepared
under Canadian GAAP at December 31, 1998, common stock would be $934,000 greater
due to the inclusion of the Convertible Debentures and accrued expenses would be
reduced by $33,000 in 1998 due to the elimination of accrued interest on the
debt. In addition, the accumulated deficit would be reduced by $252,000 in 1998
as a result of the elimination of interest and other debt issuance expenses
included in the accompanying statement of operations for the year ended December
31, 1998 as required under U.S. GAAP. In 1999, the financial statements
presented are in accordance with both U.S. GAAP and Canadian GAAP.

         CASH AND MARKETABLE SECURITIES

         Investments with a maturity of three months or less at the date of
purchase are considered to be cash equivalents and those with maturities greater
than three months are considered to be marketable securities. Marketable
securities are stated at cost, which approximates fair value. Cash equivalents
and marketable securities, which are classified as available-for-sale
securities, consist primarily of time deposits, bankers acceptances and
obligations of U.S. government and agencies.

         INVENTORIES

         Inventory is stated at the lower of cost or market value.

         EQUIPMENT, FURNITURE AND LEASEHOLD IMPROVEMENTS

         Equipment, fixtures and leasehold improvements are stated on the basis
of cost. Depreciation is computed principally on the straight-line method for
financial reporting purposes and on accelerated methods for income tax purposes.

         Depreciation and amortization are based on the following useful lives:



                                                               
           Equipment                                                   3-5 years
           Equipment under placement contracts                     Life of contract
           Office furniture and fixtures                                5 years
           Equipment under capital lease                                5 years
           Leasehold improvements                                    Life of lease


         The Company reviews and evaluates long-lived assets for impairment on a
regular basis. In management's opinion, long-lived assets are not impaired as of
the balance sheet dates presented. The amounts capitalized have future value to
the Company.

         REVENUE RECOGNITION

         The Company sells it principal product, The Heart Laser System, and
related disposable surgical kits to hospital customers both directly and through
distributors. Revenues from the sale of disposable kits are recorded as product
sales at the time of shipment. Revenues from the sale or lease of The Heart
Laser System, which result in substantially all the risks and benefits of
ownership of The Heart Laser System being transferred to the customer, are
recorded as product at the time of ownership transfer. In sales transactions
this typically occurs at time of shipment. In lease transactions this typically
occurs upon lease commencement, at which time the Company records revenue equal
to the present value of the guaranteed minimum lease payments.

         The Company also installs The Heart Laser System at hospitals under
placement agreements which do not transfer substantial ownership of the
equipment to the customer. Revenues from these transactions are recognized over
the life of the placement agreement in accordance with the specific terms of the
contract.

         Revenues from service and maintenance contracts are recognized ratably
over the life of the contract.


                                     F - 8


         FOREIGN CURRENCY TRANSLATION

         Assets and liabilities are translated into U.S. dollars at current
exchange rates, while income and expense items are translated at average rates
of exchange prevailing during the year. Exchange gains and losses arising from
translation are accumulated as a separate component of stockholders' equity.
Gains and losses from foreign currency transactions are recorded in the
accompanying statements of operations and are not material.

         NET LOSS PER SHARE

         Basic earnings per share is computed based only on the weighted average
number of common shares outstanding during the period. Diluted earnings per
share is computed using the weighted average number of common shares outstanding
during the period, plus the dilutive effect of future issues of common stock
relating to stock option programs and convertible debt financing. In calculating
diluted earnings per share, the dilutive effect of stock options is computed
using the average market price for the period unless their inclusion would be
antidilutive.

         STOCK BASED COMPENSATION

         The Company grants stock options for a fixed number of shares to
employees and certain other individuals with exercise prices equal to the fair
value of the shares at the dates of grant. The Company has adopted the
disclosure only provisions of Statement of Financial Accounting Standards No.
123, ACCOUNTING FOR STOCK-BASED COMPENSATION ("FAS 123") and will continue to
account for its stock option plans in accordance with the provisions of APB 25
ACCOUNTING FOR STOCK ISSUED TO EMPLOYEES.

         USE OF ESTIMATES

         The preparation of financial statements in accordance with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements, and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates. The Company
has provided a valuation allowance for all deferred tax assets due to the
inability to assume the realization of such tax benefits in the foreseeable
future.

1.       INVENTORIES

         Inventories consist of the following at December 31 (in thousands):



                                                                     1999                      1998
                                                                     ----                      ----
                                                                                     
                 Raw materials                                     $1,044                    $1,035
                 Work in process                                      439                       145
                 Finished goods                                       865                     1,773
                                                                   ------                    ------
                                                                   $2,348                    $2,953
                                                                   ======                    ======


2.       EQUIPMENT, FURNITURE AND LEASEHOLD IMPROVEMENTS

              Equipment, furniture and leasehold improvements consist of the
following at December 31 (in thousands):


                                     F - 9




                                                                      1999                      1998
                                                                      ----                      ----
                                                                                     
                 Equipment                                         $ 2,614                   $ 2,461
                 Equipment under placement contracts                 6,354                     6,617
                 Office furniture and fixtures                         881                       929
                 Equipment under capital lease                         429                       429
                 Leasehold improvements                                591                       587
                                                                   -------                   -------
                                                                    10,869                    11,023
                 Less accumulated depreciation
                    and amortization                                 7,533                     5,932
                                                                   -------                   -------
                                                                   $ 3,336                   $ 5,091
                                                                   =======                   =======


         Depreciation expense was $2,340,000, $3,116,000 and $1,894,000,
respectively, for the years ended December 31, 1999, 1998 and 1997.

5.       LEGAL PROCEEDINGS

         In September 1996, CardioGenesis filed a civil lawsuit in the United
States District Court for the Northern District of California asking the court
to declare the Company's synchronization patent (U.S. Patent No. 5,125,926)
invalid and unenforceable, or, alternatively, to find that CardioGenesis' TMR
and PMR lasers do not infringe this patent. The Company filed a counterclaim
alleging that all of CardioGenesis' TMR and PMR lasers infringe U.S. Patent No.
5,125,926. In January 1997, CardioGenesis filed an opposition in the European
Patent Office to have the Company's German synchronization patent declared
invalid. In April 1997, the Company filed an infringement lawsuit against
CardioGenesis and one of its distributors in the Munich District Court alleging
that CardioGenesis' TMR and PMR lasers infringe the Company's German
synchronization patent. The PLC patents at issue in these lawsuits cover the
Company's synchronization technology, which the Company believes is a critical
factor in increasing the safety of TMR and PMR procedures.

         In January 1999, the Company settled its outstanding patent
infringement litigation with CardioGenesis, who subsequently merged with Eclipse
Surgical Technologies, Inc. Under the settlement, CardioGenesis agreed that U.S.
Patent No. 5,125,926 and related international patents of the Company are valid
and enforceable. PLC granted CardioGenesis a non-exclusive worldwide license to
the patents in exchange for payment of a license fee and ongoing royalties over
the life of the patents (at least 10 years unless the patents are all held
invalid in future lawsuits).

As part of the settlement, CardioGenesis agreed to pay the Company:

         -        a minimum of $2.5 million over the next 42 months; and

         -        license fees and ongoing royalties on sales of all covered
                  products for at least 10 years (unless the patents are all
                  held invalid in future lawsuits).

         In July 1997, a U.S. Food and Drug Administration ("FDA") advisory
panel recommended against approval of the Company's application to market The
Heart Laser System in the United States. Following this recommendation, the
Company was named as defendant in 21 purported class action lawsuits filed
between August 1997 and November 1997 in the United States District Court for
the District of Massachusetts. The lawsuits seek an unspecified amount of
damages in connection with alleged violations of the federal securities laws
based on the Company's failure to obtain a favorable FDA panel recommendation
in 1997. Nineteen of these complaints have been consolidated by the court
into a single action for pretrial purposes (hereafter referred to as the
"federal suit"). Two of these suits were voluntarily dismissed. The Company
moved to dismiss all claims in the federal suit. On March 26, 1999, the court
issued an order dismissing some, but not all, of the claims in the federal
suit. The parties filed cross motions for reconsideration and on October 12,
1999, the court dismissed additional, but not all remaining claims in the
federal suit. The Company has also been named as a defendant in a lawsuit
filed in Massachusetts Superior Court in September 1998 (hereafter referred
to as the "state suit") seeking over $2 million in damages for alleged
negligent misrepresentations and fraud arising from the Company's failure to
obtain a favorable FDA recommendation in 1997. The Company cannot make a
meaningful estimate of the amount or range of loss that could result from an
unfavorable outcome of these

                                     F - 10


lawsuits, but an unfavorable outcome could have a material adverse effect on the
Company's business, financial position and results of operations. The Company
believes that it has meritorious defenses to these litigation matters and
continues to vigorously defend itself in these matters.

         In August 1997, the Company received from the United States Securities
and Exchange Commission (the "Commission") an informal request for information
relating to the decision by the FDA Advisory Panel not to recommend approval of
The Heart Laser System in July 1997. The Company has responded and has not
received any further communication from the Commission regarding this matter
since June 1998.

         In February 1996, PLC Medical Systems, Inc. filed suit against Eclipse
Surgical Technologies, Inc. ("Eclipse") in the United States District Court for
the District of Massachusetts alleging copyright infringement and unfair and
deceptive trade practices based on Eclipse's misappropriation and copying of one
of PLC's confidential clinical study protocols. The Company settled this suit in
April 1999 on confidential terms. The settlement of the lawsuit did not have a
material impact on the Company's financial statements.

         In November 1998, a hospital in France, Centre Medico Chirurgical Foch
("Foch Hospital"), sued the Company's Portuguese subsidiary, PLC Sistemas
Medicos Internacionais Lda., and a third party, Johnson & Johnson Leasing GmbH,
in Paris, France alleging breach of contract. In October 1997, the French
Ministry of Health suspended commercial use of TMR devices in France. Foch
Hospital is seeking reimbursement of lease payments made for The Heart Laser
System. The Company intends to vigorously defend itself in this matter. A
hearing on the merits of the case has been held, however no decision has been
rendered and a meaningful estimate of the loss that could result from this
matter can not be made. However, the Company does not believe that the loss,
if any, would have a material adverse impact on the Company's financial
condition.

6.       ISSUANCE OF CONVERTIBLE DEBENTURES

         In April 1998, the Company obtained a $10 million financing commitment
from three institutional investors. Pursuant to the terms of the financing, the
Company received approximately $5 million in April 1998 from the issuance of
non-interest bearing, five-year convertible debentures. In 1998, $4,000,000 of
the convertible debentures outstanding converted into 653,063 shares of the
Company's Common Stock. In January 1999, the remaining $1,000,000 of the
convertible debentures outstanding converted into 163,264 shares of the
Company's Common Stock. The remaining $5 million of the commitment expired on
December 31, 1998.

         In connection with the April 1998 financing, the Company issued
redeemable warrants to purchase 4,864 shares of its Common Stock at $19.53 per
share. If the average closing sale price of its Common Stock for any consecutive
thirty trading day period commencing April 23, 1999 exceeds the exercise price
by more than 50%, the Company has the right, exercisable at any time upon 30
days notice to the holder, to redeem the warrants at a price of $.10 per
warrant. The warrants expire on April 23, 2003. The detachable warrants were
valued at $50,000 (using the Black-Scholes formula), classified as a component
of equity, and disclosed separately in the Consolidated Statement of
Stockholders' Equity.

7.    STOCKHOLDERS' EQUITY

         The Company's 1992 Stock Option Plan ("1992 Plan"), the 1993 Stock
Option Plan ("1993 Plan") and the 1995 Stock Option Plan ("1995 Plan") allow for
the granting of options aggregating 2,505,000 shares of common stock. All of the
Plans consist of both incentive stock options and non-qualified options.
Incentive stock options are issuable only to employees of the Company, while
non-qualified options may be issued to non-employee directors, consultants, and
others, as well as to employees. The options granted under all the Plans
generally become


                                     F - 11


exercisable ratably over one to three years from the date of grant, or based on
the attainment of specific performance criteria, and expire ten years from the
date of grant.

         The Company's 1993 Formula Stock Option Plan (the "Formula Plan")
provides for the grant of non-qualified options to non-employee directors to
purchase up to 250,000 shares of common stock. The Plan is administered by the
Board of Directors. Annually, the Company grants 10,000 options to each of its
non-employee directors. A director must attend at least 60% of all Board
meetings, as well as committee meetings, to receive the grant. The options vest
over one year on a quarterly basis and expire ten years from the date of grant.
The exercise price is the fair market value of the Company's common stock on the
last business day preceding the date of grant. As of December 31, 1999, the
options are fully exercisable and expire ten years from the date of grant.

         The Company's 1997 Executive Stock Option Plan ("1997 Executive Plan")
provides for the grant of non-qualified options to officers and directors of the
Company to purchase up to 1,000,000 shares of common stock. The

options vest over time and/or the attainment of specific performance criteria.

         The per share exercise price of the common stock subject to an
incentive stock option may not be less than the fair market value of the common
stock on the date the option is granted. The Company must grant non-qualified
options at an exercise price of at least 85% of the fair market value of the
common stock on the date the option is granted.

         During 1998, the Board of Directors (together with its Compensation and
Executive Committees) adopted the following incentive compensation programs:

         a.)    In January 1998, the outstanding options of all employees
(except executive officers and directors) having a higher exercise price were
repriced to $8.88 per share. As a result, the exercise price of options to
purchase 526,784 shares of Common Stock was reduced to $8.88 per share.

         b.)    In August, 1998, the outstanding options of all directors and
executive employees having a higher exercise price were repriced to $7.75 per
share. As a result, the exercise price of options to purchase 1,373,500 shares
of Common Stock was reduced to $7.75 per share.

         c.)    In September 1998, a new Senior Management Investment Program
("SMIP") was adopted to promote investment in the Company's stock by directors
and members of the Company's senior management team. Under the SMIP, individuals
who purchased additional shares of the Company's stock between September 15,
1998 and December 15, 1998 (the "Participants") received options to purchase an
additional 1.5 shares of Common Stock at an exercise price equal to the
Participant's share purchase price (the "Share Purchase Price"). In addition,
Participants received ten "option credits" for each share of Common Stock
purchased between September 15, 1998 and December 15, 1998. Participants could
use each "option credit" to: (i) reduce the exercise price of an outstanding
option (vested or unvested) to purchase one share of Common Stock to the
Participant's Share Purchase Price; or (ii) extend the expiration date of any
outstanding option (vested or unvested) for an additional three years; or (iii)
acquire new vested options with an exercise price equal to the Participant's
Share Purchase Price (at a rate of 6.67 option credits for each new option to
purchase one share of Common Stock). Under this program, the Company granted
options to purchase an additional 331,575 shares of Common Stock at exercise
prices ranging from $3.875 to $6.625 per share . Furthermore, the Company has
reduced the exercise prices of options to purchase 1,243,500 shares of Common
Stock to new exercise prices ranging from $4.6875 to $5.5625.

         d.)    In December 1998, the outstanding options held by employees not
eligible to participate in the SMIP having a higher exercise price were repriced
to $4.875 per share. As a result, the exercise price of options to purchase
332,316 shares of Common Stock were repriced to $4.875 per share.

         The following is a summary of option activity under all Plans (in
thousands, except per option data):


                                     F - 12




                                                                     1999                 1998              1997
                                                                     ----                 ----              ----

                                                                                                 
Outstanding at beginning of year                                     2,788                2,187              1,914
     Granted                                                         1,204                  823                938
     Exercised                                                         (4)                (142)              (435)
     Canceled                                                      (1,282)                 (80)              (230)
                                                                    ------                -----             ------

Outstanding at end of year                                           2,706                2,788              2,187
                                                                     =====                =====              =====

Exercisable at end of year                                           1,681                1,711                878

Available for grant at end of year                                     152                   71                463


                                                                      1999                 1998               1997
                                                                      ----                 ----               ----
Weighted - average exercise price:
          Outstanding at beginning of year                           $4.88                $8.75              $8.18
          Granted                                                    $2.53                $5.39             $13.56
          Canceled                                                   $5.46                $9.09             $11.50
          Exercised                                                  $3.91                $4.39              $4.39
          Outstanding at end of year                                 $3.84                $5.16             $10.84
          Exercisable at end of year                                 $4.47                $4.88              $8.75

Weighted - average fair value of
     Options granted during the year                                 $1.44                $3.33              $8.20




                                                                         Range of Exercise Prices
                                                                         ------------------------
                                                             $2.00 - $5.00        $5.01 - $8.88      $2.00 - $8.88
                                                             -------------        -------------      -------------
              Options Outstanding:
              --------------------
                                                                                          
              Number (in thousands)                                  2,184                  522              2,706

              Weighted-Average Remaining
                   Contractual Life                                   7.71                 7.43               7.66
              Weighted-Average
                   Exercise Price                                    $3.32                $6.03              $3.84

              Options Exercisable:
              --------------------
              Number (in thousands)                                  1,210                  471              1,681
              Weighted-Average
                   Exercise Price                                    $3.91                $5.89              $4.47


         Pursuant to the requirements of FAS 123, the following are the pro
forma net loss and net loss per share for 1999, 1998 and 1997, as if the
compensation cost for the option plans had been determined based on the fair
value at the grant date for grants in 1999, 1998 and 1997, consistent with the
provisions of FAS 123.



                                                                     1999                 1998                 1997
                                                               -----------           ----------                ---
                                                                                                
Proforma net loss (in thousands)                                  $(5,163)            $(22,438)          $(16,523)
Proforma net loss per share                                       $  (.25)            $  (1.17)          $   (.97)



                                     F - 13


         The fair value of options issued at the date of grant were estimated
using the Black-Scholes model with following weighted average assumptions:



                                                                    1999                 1998                1997
                                                               -----------           ----------           -------
                                                                                             
        Expected life (years)                                           2                    2                  2
        Interest rate                                               5.87%                5.53%              6.01%
        Volatility                                                  1.052                 .761              1.141


         The effects on pro forma disclosures of applying FAS 123 are not likely
to be representative of the effects on pro forma disclosures of future years.

         As of December 31, 1999, the Company had the following outstanding
warrants to purchase common stock: 69,875 shares at $27.81 per share expiring
July 22, 2002; 80,125 shares at $15.78 per share expiring August 14, 2002; and
4,864 shares at $19.53 per share expiring April 23, 2003.

         At December 31, 1999, there were 3,023,026 shares of authorized but
unissued common stock reserved for issuance under all stock option plans and
stock warrants.

         In March 1999, the Company obtained a provisional equity financing
commitment of up to $8 million from a major institutional investor. In 1999, the
Company had sold 649,474 shares of common stock under this commitment, resulting
in proceeds to the Company (net of all issuance costs payable upon closing) of
approximately $1,900,000. This commitment expired on July 16, 1999. In July
1999, the Company also sold 666,666 shares of common stock to another investor
resulting in net proceeds to the Company of approximately $1,900,000.

         The Company has 5,000,000 authorized shares of preferred stock. The
Board of Directors is authorized to fix designations, relative rights,
preferences and limitations in the preferred stock at time of issuance.

         The Company has never declared nor paid dividends on any of its capital
stock and does not expect to do so in the foreseeable future.

8.       LEASE RECEIVABLES

         The Company has entered into third-party financing arrangements to
provide an array of lease financing alternatives to hospitals interested in
acquiring The Heart Laser System. The lease financing alternatives available
complement the Company's traditional placement and sales strategies.

         Under these arrangements, the Company receives payment from the leasing
company equal to the present value of guaranteed minimum procedure payments due
from the customer after customer acceptance of The Heart Laser System. In
transactions where the Company has transferred substantially all of the risks
and rewards of ownership to the customer and the customer has accepted The Heart
Laser System, the Company recognizes revenue, which is reported as a component
of product sales. The Company recognizes a lease receivable equal to the present
value of the guaranteed minimum lease payments until such time as the Company
can legally isolate the lease receivables. The payment received from the leasing
company is recognized as a secured borrowing. Interest income and interest
expense related to the lease receivables and secured borrowing, respectively, is
recognized over time using the effective interest method. Equal amounts of
interest income and interest expense are included as a component of other
income, net, in the Consolidated Statement of Operations.

9.       LEASE COMMITMENTS

         The Company occupies its worldwide facilities under operating lease
agreements, which expire through March 2002. The Company has the option to renew
the U.S. facilities lease for up to six years. In addition to the


                                     F - 14


minimum lease payments, the agreement requires payment of the Company's pro-rata
share of property taxes and building operating expenses. The Company also leases
certain equipment.

         As of December 31, 1999, future minimum lease payments are as follows
(in thousands):



                                                  Future Minimum
                                Year              Lease Payments
                                ----              --------------
                                               
                                2000                    $327
                                2001                     213
                                2002                      12
                                                        ----
                                                        $552
                                                        ====


         Total rent expense was $424,000 in 1999, $375,000 in 1998 and $458,000
in 1997.

10.   INCOME TAXES

         Deferred income taxes reflect the net tax effects of temporary
differences between the carrying amounts of assets and liabilities for financial
reporting purposes and the amounts used for income tax purposes. Significant
components of the Company's deferred tax assets as of December 31 are as follows
(in thousands):



                                                                        1999                 1998
                                                                        ----                 ----
                                                                                   
        Net U.S. operating loss carryforwards                         $16,279              $13,791
        Net foreign operating loss carryforwards                        1,775                2,263
        Intercompany profit                                               189                  313
        Accrued clinical costs                                            307                  406
        Research & development credits                                    761                  679
        Inventory and warranty reserves                                   484                  497
        Alternative minimum tax credit                                     63                   63
        Accrued salaries                                                  200                  195
        Deferred revenue                                                   55                  173
        Other                                                             (62)                   4
                                                                      --------             -------
             Total deferred tax assets                                 20,051               18,384
             Valuation allowance                                      (20,051)             (18,384)
                                                                      --------             -------
                  Net deferred tax assets                             $   -                $   -
                                                                      ========             =======


         The valuation allowance increased by approximately $1,700,000 primarily
due to additional net operating loss carryforwards. The Company recorded the
valuation allowance due to the uncertainty of the realizability of the related
net deferred tax asset of $20,051,000.

         Loss before taxes consisted of the following (in thousands):



                                                       1999              1998             1997
                                                       ----              ----             ----

                                                                              
        Domestic                                     $(5,027)         $(14,137)         $(11,340)
        Foreign                                       (1,528)           (2,472)           (3,064)
                                                     -------          --------          --------
                                                     $(6,555)         $(16,603)         $(14,404)
                                                     =======          ========          ========


         Income taxes (benefit) computed at the federal statutory rate differ
from amounts provided as follows (in thousands):


                                     F - 15




                                                          1999            1998            1997
                                                          ----            ----            ----

                                                                                
        Statutory income tax benefit                    $(2,229)        $(5,645)         $(4,898)
        Utilization of loss carryforwards                  (290)            (85)                -
        Unbenefited U.S. losses                            1,709           4,807            3,856
        Unbenefited foreign losses                           810             923            1,042
                                                        --------        --------         --------
        Benefit for income taxes                        $      -        $      -         $      -
                                                        ========        ========         ========


         At December 31, 1999 the Company had U.S. net operating loss
carryforwards available to reduce future taxable income of approximately $40.8
million, which expire at various dates through 2013. In addition, the Company
had foreign net operating loss carryforwards of approximately $4.4 million.

         In 1999, certain subsidiaries were liquidated. The foreign net
operating loss carryforwards were reduced for amounts that will not be utilized
as a result of the liquidations.

11.      SEGMENT INFORMATION

         The Company operates in one industry segment - the development,
manufacture and sales of medical lasers and related products. Net sales to
unaffiliated customers (by origin) are summarized below (in thousands).



                                    North
                                   America         Europe         Other        Eliminations    Total
                                 -----------     ----------     ---------      ------------  ------------
                                                                             
1999
Net sales to unaffiliated         $10,196         $1,440         $  -             $ -        $ 11,636
  customers
Long-lived assets                 $   391         $    -         $  -             $ -        $    391

1998
Net sales to unaffiliated
  Customers

                                  $ 3,992         $1,615         $ 86             $ -        $  5,693
Long-lived assets                 $   558         $    -         $  -             $ -        $    558

1997
Net sales to unaffiliated
  Customers                       $ 4,092         $4,683         $166             $ -        $  8,941
Long-lived assets                 $   701         $    -         $  -             $ -        $    701


         No one customer accounted for more than 10% of the Company's revenues
for the year ended December 31, 1999 or 1998. Approximately 20% of the Company's
revenues for the year ended December 31, 1997 came from one customer, Imatron
Japan. The Company believes that its exposure to concentrations of credit risk
is not significant based on experiences with these customers. In addition,
letters of credit or payment in advance are required in credit risk situations.
The Company does not believe its future revenues to be dependent on those
generated from any single customer.


12.      SUBSEQUENT EVENT

         On March 28, 2000, the Company closed an equity financing with two
institutional investors at $2.00 per share. In conjunction with this offer,
the Company sold 2,683,000 shares of common stock, resulting in proceeds to
the Company (net of all issuance costs) of approximately $5,000,000 and
issued the placement agent a three year warrant for 61,326 shares of common
stock at $3.15 per share. The Company may seek additional financing through
the issuance and sale of debt or equity securities, bank financing, joint
ventures or by other means. The availability of such financing and the
reasonableness of any related terms in comparison to market conditions cannot
be assured.


                                     F - 16



                                   Schedule II

                                PLC SYSTEMS INC.
                        Valuation and Qualifying Accounts



                    Column A                           Column B             Column C           Column D           Column E
                    --------                           --------             --------           --------           --------
                                                                            Additions         Deductions
                                                                            ---------         ----------
                                                      Balance at           Charged to                            Balance at
                                                       Beginning            Costs and                              End of
Description                                            of Period            Expenses                              Period
- -----------                                            ---------            --------                              ------
                                                                                                     
For the Year Ended December 31, 1999
   Allowance for Doubtful Accounts                        $228,000            $190,000            $     0          $418,000
For the Year Ended December 31, 1998
   Allowance for Doubtful Accounts                        $140,000            $100,000            $12,000          $228,000
For the Year Ended December 31, 1997
   Allowance for Doubtful Accounts                        $ 28,000            $112,000            $     0          $140,000



                                PLC SYSTEMS INC.
                           QUARTERLY DATA (UNAUDITED)



                                           March 31         June 30        September 30        December 31       Total
                                                                                              
1999
Total revenue                              $  2,846        $  3,492         $   2,542              $2,756        $11,636
Gross profit                                  1,484           1,720             1,232               1,524          5,960
Loss from operations                         (2,206)         (1,830)           (1,443)             (1,287)        (6,766)
Net loss                                     (2,199)         (1,705)           (1,395)             (1,256)        (6,555)

Net loss per share, basic and diluted          (.11)           (.08)             (.07)               (.06)          (.32)

1998
Total revenue                              $    945        $    680          $  1,615              $2,453         $5,693
Gross profit (loss)                             257            (351)              320                 900          1,126
Loss from operations                         (4,087)         (5,569)           (4,032)             (3,372)       (17,060)
Net loss                                     (3,936)         (5,402)           (4,006)             (3,259)       (16,603)

Net loss per share, basic and diluted          (.21)           (.28)             (.21)               (.17)          (.86)


                                     S - 1


                                                                   EXHIBIT INDEX

   Exhibit
   Number                     Description of Document
   ------                     -----------------------

   3.1       Certificate of Incorporation, incorporated by reference to the
             Registrant's registration statement on Form S-1 (SEC File No.
             33-48340) and amendments thereto, as previously filed with the
             Securities and Exchange Commission.

   3.2*      Articles of Continuance, pursuant to the Yukon Business
             Corporations Act.

   3.3*      By-Law No. 1, a By-Law relating generally to the transaction of the
             business and affairs of PLC Systems, Inc.

   4.1       Form of Common Stock Certificate, incorporated by reference to the
             Registrant's registration statement on Form S-1 (SEC File No.
             33-48340) and amendments thereto, as previously filed with the
             Securities and Exchange Commission.

   10.1      1992 Stock Option Plan, incorporated by reference to the
             Registrant's registration statement on Form S-1 (SEC File No.
             33-48340) and amendments thereto, as previously filed with the
             Securities and Exchange Commission.

   10.2      1993 Stock Option Plan, incorporated by reference to the
             Registrant's registration statement on Form S-1 (SEC File No.
             33-58258) and amendments thereto, as previously filed with the
             Securities and Exchange Commission.

   10.3      1993 Formula Stock Option Plan, incorporated by reference to the
             Registrant's registration statement on Form S-1 (SEC File No.
             33-58258) and amendments thereto, as previously filed with the
             Securities and Exchange Commission.

   10.4      Revised Form of Key Employee Agreement for Dr. Robert I. Rudko,
             incorporated by reference to the Registrant's Annual Report on Form
             10-K for the year ended December 31, 1994 (SEC File No. 1-11388),
             as previously filed with the Securities and Exchange Commission.

   10.5      1995 Stock Option Plan, incorporated by reference to the
             Registrant's Registration Statement on Form S-8 (SEC File No.
             33-95168), as previously filed with the Securities and Exchange
             Commission.

   10.6      Convertible Debenture Agreement, incorporated by reference to the
             Registrant's Quarterly Report on Form 10-Q for the quarter ended
             June 30, 1997 (SEC File No. 1-11388), as previously filed with the
             Securities and Exchange Commission.

   10.7      First Amendment to Convertible Debenture Agreement, incorporated by
             reference to the Registrant's Quarterly Report on Form 10-Q for the
             quarter ended June 30, 1997 (SEC File No. 1-11388), as previously
             filed with the Securities and Exchange Commission.

   10.8      Second Amendment to Convertible Debenture Agreement, incorporated
             by reference to the Registrant's Quarterly Report on Form 10-Q for
             the quarter ended June 30, 1997 (SEC File No. 1-11388), as
             previously filed with the Securities and Exchange Commission.

   10.9      Form of Convertible Debenture, incorporated by reference to the
             Registrant's Quarterly Report on Form 10-Q for the quarter ended
             June 30, 1997 (SEC File No. 1-11388), as previously filed with the
             Securities and Exchange Commission.

   10.10     Form of Redeemable Warrant, incorporated by reference to the
             Registrant's Quarterly Report on Form 10-Q for the quarter ended
             June 30, 1997 (SEC File No. 1-11388), as previously filed with the
             Securities and Exchange Commission.

   10.11     Registration Rights Agreement, incorporated by reference to the
             Registrant's Quarterly Report on Form 10-Q for the quarter ended
             June 30, 1997 (SEC File No. 1-11388), as previously filed with the
             Securities and Exchange Commission.

   10.12     Form of Key Employment Agreement for William C. Dow, incorporated
             by reference to the Registrant's Quarterly Report on Form 10-Q for
             the quarter ended September 30, 1997 (SEC File No. 1-11388), as
             previously filed with the Securities and Exchange Commission.

   10.13     1997 Executive Stock Option Plan, incorporated by reference to the
             Registrant's Quarterly Report on Form 10-Q for the quarter ended
             September 30, 1997 (SEC File No. 1-11388), as previously filed with
             the Securities and Exchange Commission.

   10.14     Convertible Debenture Purchase Agreement dated as of April 23, 1998
             between Southbrook International Investment, Ltd., Brown Simpson
             Strategic Growth Fund, L.P. and Brown


             Simpson Strategic Growth Fund, Ltd. and the Registrant,
             incorporated by reference to the Registrant's Quarterly Report on
             Form 10-Q for the Quarter ended March 31, 1998 (File No. 1-11388),
             as previously filed with the Securities and Exchange Commission.

   10.15     Form of Convertible Debenture, incorporated by reference to the
             Registrant's Quarterly Report on Form 10-Q for the Quarter ended
             March 31, 1998 (File No. 1-11388), as previously filed with the
             Securities and Exchange Commission.

   10.16     Form of Redeemable Warrant, incorporated by reference to the
             Registrant's Quarterly Report on Form 10-Q for the Quarter ended
             March 31, 1998 (File No. 1-11388), as previously filed with the
             Securities and Exchange Commission.

   10.17     Registration Rights Agreement dated as of April 23, 1998 between
             Southbrook International Investment, Ltd., Brown Simpson Strategic
             Growth Fund, L.P. and Brown Simpson Strategic Growth Fund, Ltd. and
             the Registrant, incorporated by reference to the Registrant's
             Quarterly Report on Form 10-Q for the Quarter ended March 31, 1998
             (File No. 1-11388), as previously filed with the Securities and
             Exchange Commission.

   10.18     Key Employee Agreement of Robert Svikhart, incorporated by
             reference to the Registrant's Quarterly Report on Form 10-Q for the
             Quarter ended June 30, 1998 (File No. 1-11388), as previously filed
             with the Securities and Exchange Commission.

   10.19     Form of Common Stock Purchase Agreement, incorporated by reference
             to the Registrant's Current Report on Form 8-K dated March 12, 1999
             (File No. 1-11388), as previously filed with the Securities and
             Exchange Commission.

   21.1 *    Subsidiaries of the Registrant.
   23.1 *    Consent of Ernst & Young LLP.
   27.1 *    Financial Data Schedule.

*    Filed with this Annual Report on Form 10-K for the fiscal year ended
     December 31, 1999.