1


    AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON FEBRUARY 1, 2001



                                                      REGISTRATION NO. 333-52810

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- --------------------------------------------------------------------------------

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------


                               AMENDMENT NO. 1 TO


                                    FORM S-3
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                            ------------------------

                          CARDIAC PATHWAYS CORPORATION
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
                            ------------------------


                                              
                    DELAWARE                                        77-0278793
        (STATE OR OTHER JURISDICTION OF                          (I.R.S. EMPLOYER
         INCORPORATION OR ORGANIZATION)                       IDENTIFICATION NUMBER)


                          CARDIAC PATHWAYS CORPORATION
                               995 BENECIA AVENUE
                          SUNNYVALE, CALIFORNIA 94085
                                 (408) 737-0505

   (ADDRESS AND TELEPHONE NUMBER OF REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)
                            ------------------------

                               THOMAS M. PRESCOTT
                     PRESIDENT AND CHIEF EXECUTIVE OFFICER
                          CARDIAC PATHWAYS CORPORATION
                               995 BENECIA AVENUE
                          SUNNYVALE, CALIFORNIA 94085
                                 (408) 737-0505
           (NAME, ADDRESS, AND TELEPHONE NUMBER OF AGENT FOR SERVICE)
                            ------------------------

                                   COPIES TO:
                             CHRIS F. FENNELL, ESQ.
                        WILSON SONSINI GOODRICH & ROSATI
                            PROFESSIONAL CORPORATION
                               650 PAGE MILL ROAD
                            PALO ALTO, CA 94304-1050
                                 (650) 493-9300
                            ------------------------

        APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:
As soon as practicable after this Registration Statement is declared effective.

    If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, check the following box.  [X]

    If this Form is to register additional securities for an offering pursuant
to Rule 462(b) under the Securities Act, check the following box and list the
Securities Act registration statement number of the earlier effective
registration statement for the same offering.  [ ] __________

    If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering.  [ ] __________

    If this Form is a post-effective amendment filed pursuant to Rule 462(d)
under the Securities Act, check the following box and list the Securities Act
registration number of the earlier effective registration statement for the same
offering.  [ ] __________

    If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box.  [ ]
                            ------------------------

                        CALCULATION OF REGISTRATION FEE



                                                                                          
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       TITLE OF EACH CLASS                 AMOUNT           PROPOSED MAXIMUM      PROPOSED MAXIMUM
         OF SECURITIES TO                  TO BE             OFFERING PRICE          AGGREGATE             AMOUNT OF
          BE REGISTERED                  REGISTERED           PER SHARE(2)         OFFERING PRICE          FILING FEE
- --------------------------------------------------------------------------------------------------------------------------
Common stock, par value $0.001 per
  share...........................  5,858,823 shares(1)          $3.56              $20,855,629            $5,214(3)
- --------------------------------------------------------------------------------------------------------------------------
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(1) Includes Preferred Share Purchase Rights, which prior to the occurrence of
    certain events will not be exercisable or evidenced separately from the
    common stock.

(2) The price of $3.56 per share, which was the average of the high and low
    prices of the Registrant's common stock on the Nasdaq National Market on
    December 22, 2000, is set forth solely for the purposes of calculating the
    registration fee in accordance with Rule 457(c) of the Securities Act.


(3)Previously paid.

                            ------------------------

    THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME EFFECTIVE ON
SUCH DATE AS THE COMMISSION ACTING PURSUANT TO SAID SECTION 8(a) MAY DETERMINE.

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   2

      THE INFORMATION IN THIS PROSPECTUS IS NOT COMPLETE AND MAY BE CHANGED. WE
      MAY NOT SELL THESE SECURITIES UNTIL THE REGISTRATION STATEMENT FILED WITH
      THE SECURITIES AND EXCHANGE COMMISSION IS EFFECTIVE. THIS PROSPECTUS IS
      NOT AN OFFER TO SELL THESE SECURITIES AND IS NOT SOLICITING AN OFFER TO
      BUY THESE SECURITIES IN ANY STATE WHERE THE OFFER OR SALE IS NOT
      PERMITTED.

PROSPECTUS

(SUBJECT TO COMPLETION, DATED FEBRUARY 1, 2001)


                                5,858,823 Shares

                                 [CARDIAC LOGO]

                          CARDIAC PATHWAYS CORPORATION

                                  Common Stock

                           -------------------------


     These shares may be offered and sold from time to time by certain
stockholders of Cardiac Pathways Corporation identified in this prospectus. See
"Selling Stockholders."


     The prices at which such stockholders may sell the shares will be
determined by the prevailing market price for the shares or in negotiated
transactions and these stockholders will pay all underwriting discounts and
selling commissions, if any, applicable to the sale of the shares. We will not
receive any of the proceeds from the sale of the shares.


     Our common stock is listed on the Nasdaq National Market under the symbol
"CPWY." On January 30, 2001, the average of the high and low price for our
common stock was $4.31 per share.


                           -------------------------


     YOU SHOULD CONSIDER CAREFULLY THE RISK FACTORS BEGINNING ON PAGE 3 OF THIS
PROSPECTUS BEFORE PURCHASING ANY OF THE COMMON STOCK OFFERED HEREBY.


                           -------------------------

     THE SECURITIES AND EXCHANGE COMMISSION AND STATE SECURITIES REGULATORS HAVE
NOT APPROVED OR DISAPPROVED OF THESE SECURITIES OR DETERMINED IF THIS PROSPECTUS
IS TRUTHFUL OR COMPLETE. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL
OFFENSE.

                           -------------------------


               The date of this prospectus is February   , 2001.

   3


     No person has been authorized to give any information or to make any
representations other than those contained in this prospectus (as it may be
amended or supplemented) in connection with the offering made hereby, and if
given or made, such information or representations must not be relied upon as
having been authorized by Cardiac Pathways Corporation (referred to in this
prospectus as "Cardiac Pathways," or "we"), any selling stockholder or by any
other person. Neither the delivery of this prospectus nor any sale made
hereunder shall, under any circumstances, create any implication that
information herein is correct as of any time subsequent to the date hereof. This
prospectus does not constitute an offer to sell or a solicitation of an offer to
buy any security other than the securities covered by this prospectus, nor does
it constitute an offer to or solicitation of any person in any jurisdiction in
which such offer or solicitation may not lawfully be made.


                               TABLE OF CONTENTS




                                                              PAGE
                                                              ----
                                                           
Prospectus Summary..........................................    2
Risk Factors ...............................................    3
Special Note Regarding Forward Looking Statements ..........   12
Use of Proceeds ............................................   12
Selling Stockholders........................................   13
Plan of Distribution .......................................   15
Legal Matters...............................................   15
Experts.....................................................   15
Where You Can Find More Information ........................   16
Information Incorporated by Reference.......................   16



                                        1
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                               PROSPECTUS SUMMARY



     You should read the following summary together with the more detailed
information appearing elsewhere in this prospectus, especially "Risk Factors"
and the financial statements and notes thereto.


                          CARDIAC PATHWAYS CORPORATION


     Cardiac Pathways designs, manufactures and markets advanced mapping,
ablation and navigation systems. Our major product platforms consist of the
Realtime Position Management (RPM) Tracking System and Chilli closed-loop Cooled
Ablation Catheter. These products are used to diagnose and treat cardiac
tachyarrhythmias (abnormally rapid heart rhythms) by specialized cardiologists
(electrophysiologists) performing electrophysiology ablation and diagnostic
procedures. Arrhythmias left untreated can cause palpitations, fainting, sudden
cardiac arrest or death.



     The RPM Tracking System is the first Food and Drug Administration
(FDA)-cleared integrated advanced mapping system that allows clinicians to
visualize and navigate multiple catheter positions and placements in real time
and in three dimensions. The RPM Tracking System is designed to provide the
electrophysiologist with a safe, accurate and efficient approach to diagnose and
treat cardiac arrhythmias. Traditional electrophysiology mapping and ablation
procedures can take several hours to complete and require extensive use of X-ray
flouroscopy to navigate and accurately position catheters within the heart.



     Some cardiac arrhythmias also require a large area or depth of cardiac
tissue to be ablated for successful treatment. Ablating this tissue substrate
can result in lengthy procedure times. The Chilli Cooled Ablation Catheter,
integrated within the RPM Tracking System, is designed to provide a safe and
effective tool for the physician to ablate greater lesion (cardiac tissue
destruction) volume and depth than conventional radiofrequency ablation
catheters. The integration of the RPM Tracking System and Chilli Cooled Ablation
Catheter provides the physician with an optimal system designed to reduce
procedure times, increase clinical success and reduce the hazards of X-ray
exposure to EP healthcare personnel and patients.


     Other Cardiac Pathways product lines consist of a conventional line of
mapping and ablation catheters called Radii/Radii-T as well as Trio/Ensemble
diagnostic catheters.

     Cardiac Pathways was incorporated under the laws of the State of California
in April 1991 and re-incorporated in Delaware in May 1996. Our principal
executive offices are located at 995 Benecia Avenue, Sunnyvale, California,
telephone number (408) 737-0505.


                             SUMMARY FINANCIAL DATA


                                 (IN THOUSANDS)





                                                      FOR THE YEAR ENDED    SIX MONTHS ENDED
                                                        JUNE 30, 2000       DECEMBER 31, 2000
                                                      ------------------    -----------------
                                                                               (UNAUDITED)
                                                                      
STATEMENT OF OPERATIONS DATA:
  Net sales.........................................       $  6,820              $ 6,284
  Loss from operations..............................        (17,057)              (6,853)
  Net loss..........................................        (16,367)              (6,565)
  Net loss attributable to common stockholders......        (20,627)              (8,070)






                                                                    AS OF
                                                              DECEMBER 31, 2000
                                                              -----------------
                                                                 (UNAUDITED)
                                                           
BALANCE SHEET DATA:
Cash and short-term investments.............................      $ 29,766
Working capital.............................................        27,798
Total assets................................................        40,217
Long-term obligations.......................................         6,190
Accumulated deficit.........................................       102,916
Total stockholders' equity..................................        27,541



                                        2
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                                  RISK FACTORS

     This offering involves a high degree of risk. You should carefully consider
the risks described below and the other information in this prospectus before
deciding to invest in our common stock.

WE HAVE A LIMITED HISTORY, A HISTORY OF LOSSES AND AN EXPECTATION OF FUTURE
LOSSES


     Cardiac Pathways was founded in 1991 and to date has engaged primarily in
researching, developing, testing and obtaining regulatory clearances for its
products. Cardiac Pathways has experienced significant operating losses since
inception. As of December 31, 2000, we had an accumulated deficit of $102.9
million. To date, Cardiac Pathways has generated only limited revenues from
sales of its products and expects its operating losses to continue through at
least the end of fiscal 2002 as it continues to expend funds to conduct its
research and development activities, establish commercial-scale manufacturing
capabilities and expand its sales and marketing activities. There can be no
assurance that any of our products for diagnosis and treatment of ventricular
tachycardia and other arrhythmias, particularly the RPM Tracking System or
Chilli Cooled Ablation Catheter, will be successfully commercialized or that
Cardiac Pathways will achieve significant revenues from either international or
domestic sales. In addition, there can be no assurance that Cardiac Pathways
will achieve or sustain profitability in the future or meet the expectations of
securities industry analysts. Our results of operations may fluctuate
significantly from quarter to quarter or year to year and will depend on
numerous factors, including actions relating to regulatory matters, progress of
clinical trials, the extent to which our products gain market acceptance, the
scale-up of manufacturing abilities and the expansion of sales and marketing
activities and competition.


THERE IS NO ASSURANCE THAT OUR PRODUCTS WILL PROVE TO BE SAFE AND EFFECTIVE


     There can be no assurance that our current or future products will prove to
be safe and effective in clinical trials under applicable United States or
international regulatory guidelines or that additional modifications to our
products will not be necessary. Furthermore, there can be no assurance that
Cardiac Pathways will be successful in perfecting the design of the RPM Tracking
System. With respect to the Chilli Cooled Ablation System, because ablation
treatment of cardiac arrhythmias is relatively new, the long-term effects of
radiofrequency ablation on patients are unknown. As a result, the long-term
success of ablation therapy in treating ventricular tachycardia and other
tachyarrhythmias will not be known for several years.


THERE IS NO EXISTING MARKET FOR OUR PRODUCTS


     Our future success will depend upon the successful commercialization of the
Chilli Cooled Ablation Catheter and RPM Tracking System. These products have
only recently received FDA approval and clearance to be commercialized in the
United States for the treatment of ventricular tachycardia. Cardiac Pathways has
to date demonstrated only limited ability to commercialize these new products.
There can be no assurance that these products will gain any significant degree
of market acceptance among physicians, patients, and health care payors. Cardiac
Pathways believes that physicians' acceptance of procedures using our RPM
Tracking System will be essential for market acceptance of such system. Even
though the clinical efficacy of the system has been established,
electrophysiologists, cardiologists and other physicians may elect not to
recommend the use of the RPM Tracking System for any number of reasons.



     There can be no assurance that this system will be successfully
commercialized for the approved product set in the United States and Europe.
There can be no assurance that we will be able to obtain regulatory approval in
any market where the Chilli Cooled Ablation Catheter and RPM Tracking System
have not yet received approval. Currently, the Chilli Cooled Ablation Catheter
and RPM Tracking System have been submitted for regulatory approval in Japan.
Cardiac Pathways believes that, as with any novel medical technology, there will
be a significant learning process involved for physicians to become proficient.
Broad use of the system will require training of electrophysiologists, and the
time required to complete such training could adversely affect market
acceptance. Failure of the product to achieve significant market acceptance
would have a material adverse effect on our business, financial condition and
results of


                                        3
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operations. Even if the RPM Tracking System achieves market acceptance, Cardiac
Pathways will be required to significantly ramp manufacturing operations to
produce sufficient quantities of the product to satisfy customer demand. Any
failure to manufacture the RPM Tracking System in quantities sufficient to
satisfy demand will materially adversely affect our business, financial
condition and results of operations.


WE HAVE LIMITED MARKETING AND DISTRIBUTION EXPERIENCE


     Establishing a marketing and sales capability sufficient to support planned
sales growth will require substantial efforts and significant management and
financial resources. There can be no assurance that Cardiac Pathways will be
able to continue to expand its marketing staff or sales force, that the
establishment of such a marketing staff or sales force will be cost-effective or
that Cardiac Pathways' sales and marketing efforts will be successful. There can
be no assurance that we will be able to maintain or enter into agreements with
existing or new distributors, or that such distributors will devote adequate
resources to selling our products. Failure to establish appropriate distribution
relationships could have a material adverse effect upon our business, financial
condition and results of operations.


WE ARE DEPENDENT ON SELLING CERTAIN OF OUR PRODUCTS IN INTERNATIONAL MARKETS


     Cardiac Pathways currently sells its Chilli Cooled Ablation Catheters,
Radii-T mapping and ablation catheters, Trio/Ensemble diagnostic catheters and
RPM Tracking System Products through distributors in Europe and Japan. All sales
of our products to date have been denominated in U.S. dollars. Changes in
overseas economic conditions, currency exchange rates, foreign tax laws, or
tariffs or other trade regulations could have a material adverse effect on our
ability to market our products internationally and therefore on our business,
financial condition and results of operations.


WE RELY ON MAJOR DISTRIBUTORS


     Cardiac Pathways currently relies upon international distributors of
specialty cardiovascular products to market and sell its products. A large
percentage of our revenues are derived from sales to our Japanese distributor,
Japan Lifeline, Inc. Sales to Japan Lifeline accounted for 49%, 52% and 80%, of
our net sales in fiscal 2000, 1999 and 1998, respectively. International sales
accounted for 63%, 78% and 87% of our net sales in fiscal 2000, 1999 and 1998,
respectively. Cardiac Pathways anticipates that Japan Lifeline will continue to
account for a significant percentage of its net sales for at least the balance
of fiscal 2001. Cardiac Pathways also relies on three distributors in Europe for
a significant portion of its revenues. Ela Medical S.A. (Ela) covers the
territory of France, Italy, Greece, Turkey, Israel, Belgium and Switzerland.
Curative EP (Curative) GmbH is Cardiac Pathways' distributor in Germany, while
Izasa S.A. (Izasa) distributes for Cardiac Pathways in Spain, Canary Islands and
Portugal. The distributor agreement for Japan Lifeline, covering Japan, expires
in May 2001. The Ela distributor agreement expires in June 2003. The distributor
agreements for Curative and Izasa both expire in June 2002. If our sales to any
of our international distributors decline, we would experience a material
decline in revenues. Even if Cardiac Pathways is successful in selling its
products through new international distributors, the rate of growth of our net
sales could be materially and adversely affected if its current international
distributors do not continue to sell a substantial number of its products. If
Cardiac Pathways' sales to its current international distributors decline,
Cardiac Pathways cannot be certain that it will be able to attract additional
distributors that can market its products effectively or can provide timely and
cost-effective customer support and service. None of Cardiac Pathways'
international distributors are obligated to sell its products after its
agreement with Cardiac Pathways has expired. Further, Cardiac Pathways cannot be
certain that its current international distributors will continue to represent
its products or that they will continue to devote a sufficient amount of effort
and resources to selling Cardiac Pathways' products.


WE WILL NEED TO DEVELOP STRATEGIC RELATIONSHIPS WITH THIRD PARTIES TO EXECUTE ON
OUR BUSINESS PLAN


     We intend to pursue strategic relationships with corporations and research
institutions with respect to the research, development, international regulatory
approval, manufacturing and marketing of our products. There can be no assurance
that we will be successful in establishing or maintaining any such relationships
or that any such relationship will be successful.

                                        4
   7

WE RELY ON SOLE SOURCE SUPPLIERS


     A number of components for our catheters and our RPM Tracking System
products are provided by sole source suppliers. For components such as molded
plastics and ultrasound transducers, there are relatively few alternative
sources of supply, and establishing additional or replacement vendors for such
components could not be accomplished quickly. For some components such as saline
tubing sets and distal tip wiring assemblies, there is currently a long
lead-time between purchases and the receipt of shipments. For those components
from a single source, the vendor's inability to supply such components in a
timely manner could have a material adverse effect on our ability to manufacture
the RPM Tracking System and other diagnostic and ablation catheters and
therefore on its business, financial condition and marketing efforts.


WE HAVE LIMITED MANUFACTURING EXPERIENCE


     We have limited experience manufacturing our products in the volumes that
will be necessary for us to achieve significant commercial sales, and there can
be no assurance that reliable, high volume manufacturing capacity can be
established or maintained at commercially reasonable costs. Cardiac Pathways
needs to expend significant capital resources and develop manufacturing
expertise to establish large scale manufacturing capabilities. Manufacturers
often encounter difficulties in scaling up production of new products, including
problems involving production yields, quality control and assurance, component
supply shortages, shortages of qualified personnel, compliance with FDA
regulations, and the need for further FDA approval of new manufacturing
processes. In addition, Cardiac Pathways believes that substantial cost
reductions in its manufacturing operations will be required for it to
commercialize its catheters and systems on a profitable basis. Any inability of
Cardiac Pathways to establish and maintain large scale manufacturing
capabilities would have a material adverse effect on its business, financial
condition and results of operations.


IF WE LOSE OUR LICENSE TO MANUFACTURE MEDICAL DEVICES IT MAY HARM OUR BUSINESS


     Our manufacturing facilities are subject to periodic inspection by
regulatory authorities, and our operations must undergo Quality System
Regulations (QSR) compliance inspections conducted by the FDA. Cardiac Pathways
is required to comply with QSR in order to produce products for sale in the
United States and with ISO9001/EN46001 standards in order to produce products
for sale in Europe. Any failure of Cardiac Pathways to comply with QSR or
ISO9001/EN46001 standards may result in Cardiac Pathways being required to take
corrective actions, such as modification of its policies and procedures. Cardiac
Pathways has been granted by the State of California the required license to
manufacture medical devices. If Cardiac Pathways is unable to maintain such a
license, it would be unable to manufacture or ship any product, and such
inability would have a material adverse effect on Cardiac Pathways' business,
financial condition and results of operations.


OUR PATENT POSITION IS UNCERTAIN AND OUR SUCCESS DEPENDS ON OUR PROPRIETARY
RIGHTS


     Our success will depend in part on our ability to obtain patent and
copyright protection for our products and processes, to preserve our trade
secrets and to operate without infringing or violating the proprietary rights of
third parties. The patent positions of medical device companies, including those
of Cardiac Pathways, are uncertain and involve complex and evolving legal and
factual questions. The coverage sought in a patent application either can be
denied or significantly reduced before or after the patent is issued.
Consequently, there can be no assurance that:


     - any patents from pending patent applications or from any future patent
       application will be issued,


     - the scope of any patent protection will exclude competitors or provide
       competitive advantages to Cardiac Pathways, or



     - any of Cardiac Pathways' patents will be held valid if subsequently
       challenged or that others will not claim rights in or ownership of the
       patents and other proprietary rights held by us.


                                        5
   8


     In addition, there can be no assurance that competitors, many of which have
substantial resources and have made substantial investments in competing
technologies, will not seek to apply for and obtain patents that will prevent,
limit or interfere with our ability to make, modify, use or sell our products
either in the United States or in international markets. Litigation or
regulatory proceedings, which could result in substantial cost and uncertainty
to Cardiac Pathways, may also be necessary to enforce patent or other
intellectual property rights of Cardiac Pathways or to determine the scope and
validity of other parties' proprietary rights. There can be no assurance that
Cardiac Pathways will have the financial resources to defend its patents from
infringement or claims of invalidity.



     Cardiac Pathways currently holds issued and allowed patents and has pending
patents and applications covering a number of fundamental aspects of the Chilli
Cooled Ablation System, RPM Tracking System and other products. We currently
hold 65 United States issued patents and 4 foreign issued patents. We hold
exclusive field-of-use license on 26 United States issued patents. In addition,
we have 6 United States pending patent applications, of which two are licensed.
We have also filed or licensed 22 corresponding foreign patent applications that
are currently pending in Europe and/or Japan.


IF OTHERS SUCCESSFULLY ASSERT THEIR PROPRIETARY RIGHTS AGAINST US, WE MAY BE
PRECLUDED FROM MAKING OR SELLING OUR PRODUCTS


     The medical device industry has been characterized by extensive litigation
regarding patents and other intellectual property rights, and companies in the
medical device industry have employed intellectual property litigation to gain a
competitive advantage. There can be no assurance that we will not become subject
to patent infringement claims or litigation in a court of law, or interference
proceedings declared by the United States Patent and Trademark Office (Patent
and Trademark Office) to determine the priority of inventions or an opposition
to a patent grant in a foreign jurisdiction. The defense and prosecution of
intellectual property suits, Patent and Trademark Office interference or
opposition proceedings and related legal and administrative proceedings are both
costly and time-consuming. Any litigation, opposition or interference
proceedings will result in substantial expense to Cardiac Pathways and
significant diversion of effort by our technical and management personnel. An
adverse determination in litigation or interference proceedings to which Cardiac
Pathways may become a party could:



     - subject Cardiac Pathways to significant liabilities to third parties,


     - require disputed rights to be licensed from third parties, or


     - require Cardiac Pathways to cease using such technology.



     Although patent and intellectual property disputes in the medical device
area have often been settled through licensing or similar arrangements, costs
associated with such arrangements may be substantial and could include ongoing
royalties. Furthermore, there can be no assurance that necessary licenses from
others would be available to us on satisfactory terms, if at all. Adverse
determinations in a judicial or administrative proceeding or failure to obtain
necessary licenses could prevent us from manufacturing and selling its products,
which would have a material adverse effect on our business, financial condition
and results of operations.



     Cardiac Pathways is aware of patents owned or licensed by others and
relating to cardiac catheters and cardiac monitoring. Enhancements of our
products are still in the design and pre-clinical testing phase. Depending on
the ultimate design specifications and results of pre-clinical testing of these
enhancements, there can be no assurance that we would be able to obtain a
license to such parties' patents or that a court would find that such patents
are either not infringed by our enhancements or that our patents are invalid.
Further, there can be no assurance that owners or licensees of these patents
will not attempt to enforce their patent rights against Cardiac Pathways in a
patent infringement suit or other legal proceeding, regardless of the likely
outcome of such suit or proceeding.


                                        6
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WE FACE INTENSE COMPETITION


     At present, Cardiac Pathways considers its primary competition to be
companies involved in current, more established therapies for the treatment of
ventricular tachycardia and atrial fibrillation, including drugs, external
electrical cardioversion and defibrillation, implantable defibrillators,
ablation accompanied by pacemaker implantation and open-heart surgery. In
addition, several competitors are also developing new approaches and new
products for the treatment and mapping of ventricular tachycardia and other
arrythmias, including ablation systems using ultrasound, microwave, laser and
cryoablation technologies and mapping systems using contact mapping,
single-point spatial mapping and non-contact, multisite electrical mapping
technologies.



     Many of our competitors have an established presence in the field of
interventional cardiology and electrophysiology, including:


     - Boston Scientific Corporation,

     - C.R. Bard, Inc.,

     - Johnson and Johnson,

     - St. Jude Medical,

     - Medtronic, Inc., and

     - Endocardial Solutions, Inc.


     Many competitors have substantially greater financial and other resources
than Cardiac Pathways, including larger research and development staffs, more
experience, capabilities in conducting research and development activities,
testing products in clinical trials, obtaining regulatory approvals and
manufacturing, marketing and distributing products. There can be no assurance
that we will succeed in developing and marketing technologies and products that
are more clinically efficacious and cost effective than the more established
treatments or the new approaches and products developed and marketed by our
competitors. Furthermore, there can be no assurance that we will succeed in
developing new technologies and products that are available prior to our
competitors' products. The failure of Cardiac Pathways to demonstrate the
efficacy and cost effective advantages of its products over those of its
competitors or the failure to develop new technologies and products before its
competitors, could have a material adverse effect on Cardiac Pathways' business,
financial condition and results of operations.


WE ARE SUBJECT TO EXTENSIVE GOVERNMENT REGULATION

  United States


     The design, pre-clinical and clinical testing, manufacture, labeling, sale,
distribution and promotion of our products are subject to regulation by numerous
governmental authorities, principally the FDA and corresponding state and
foreign regulatory agencies. Noncompliance with applicable requirements can
result in, among other things, fines, injunctions, civil penalties, recall or
seizure of products, total or partial suspension of production, failure of the
government to grant Pre-Market Approval (PMA) clearance or PMA approval for
devices, withdrawal of marketing authorization, a recommendation by the FDA that
Cardiac Pathways not be permitted to enter into government contracts and/or
criminal prosecution. The FDA also has the authority to request repair,
replacement or refund of the cost of any device manufactured or distributed by
Cardiac Pathways.



     Before a new device can be introduced into the market, a manufacturer must
generally obtain marketing clearance through a premarket notification under
Section 510(k) of the Federal Food, Drug and Cosmetic Act (FDA Act) or an
approval of a PMA application under Section 515 of the FDC Act. Commercial
distribution of a device for which a 510(k) clearance is required can begin only
after the FDA issues an order finding the device to be "substantially
equivalent" to a predicate device. If Cardiac Pathways cannot establish that a
proposed device is substantially equivalent to a legally marketed predicate


                                        7
   10


device, Cardiac Pathways must seek premarket approval of the proposed device
from the FDA through the submission of a PMA application.



     Cardiac Pathways will be required to make a new 510(k) submission for any
device that is cleared through the 510(k) process if it modifies or enhances the
device in a manner that could significantly affect safety or effectiveness, or
if those changes constitute a major modification in the intended use of the
device. If Cardiac Pathways cannot establish that a proposed device is
substantially equivalent to a legally marketed predicate device, it must seek
premarket approval of the proposed device from the FDA through the submission of
a PMA application. There can be no assurance that the FDA will act favorably or
quickly on any of our PMA applications. Significant difficulties and costs may
be encountered by Cardiac Pathways in its efforts to obtain FDA clearance that
could delay or preclude us from selling its products in the United States.
Furthermore, there can be no assurance that the FDA will not request additional
data or require that Cardiac Pathways conduct further clinical studies, causing
us to incur substantial cost and delay. In addition, there can be no assurance
that the FDA will not impose strict labeling requirements, onerous operator
training requirements or other requirements as a condition of its PMA approval,
any of which could limit our ability to market our systems. Labeling and
promotional activities are subject to scrutiny by the FDA and, in certain
circumstances, by the Federal Trade Commission (FTC). FDA enforcement policy
strictly prohibits the marketing of FDA cleared or approved medical devices for
unapproved uses. Further, if a company wishes to modify a product after FDA
approval of a PMA, including changes in indications or other modifications that
could affect safety or efficacy, additional clearances or approvals will be
required from the FDA. Failure to receive or delays in receipt of FDA clearances
or approvals, including the need for additional clinical trials or data as a
prerequisite to clearance or approval, or any FDA conditions that limit the
ability of Cardiac Pathways to market its systems, could have a material adverse
effect on our business, financial condition and results of operations.


  International


     The European Union has promulgated rules which require that medical
products distributed after June 14, 1998 bear the CE mark, an international
symbol of adherence to quality assurance standards and compliance with
applicable European medical device directives. Quality system certification is
one of the CE mark requirements. Cardiac Pathways has received ISO9001/EN46001
certification by its ISO Certification Registrar, one of the CE mark
certification prerequisites, for its manufacturing facility in Sunnyvale,
California. Furthermore, in January 1998, Cardiac Pathways received the right to
affix the CE mark to its Arrhythmia Mapping System and Chilli Cooled Ablation
System. In April 1998, Cardiac Pathways received the right to affix the CE mark
to its Radii catheters. In July 1998, we received the right to affix the CE mark
to our Trio/Ensemble catheters. In April 2000, Cardiac Pathways received CE mark
certification for the RPM tracking system, and for our Chilli Cooled Ablation
Catheters incorporating Real-time Position Management navigation technology.
While Cardiac Pathways intends to satisfy the requisite policies and procedures
that will permit it to receive the CE Mark Certification for other products,
there can be no assurance that we will be successful in meeting the European
certification requirements and failure to receive the right to affix the CE mark
will prohibit us from selling these and other products in member countries of
the European Union.



     The time required to obtain approval for sale in foreign countries may be
longer or shorter than that required for FDA approval, and the requirements may
differ. Export sales of medical devices that have not received FDA marketing
authorization are subject to FDA export requirements. In accordance with the FDA
Export Reform & Enforcement Act of 1996, such devices may be exported to any
country provided that the device meets a number of criteria including marketing
authorization in one of the "Tier I" countries identified in that Act. If the
device has no marketing authorization in a Tier I country, and is intended for
marketing, it may be necessary to obtain approval from the FDA to export the
device. In order to obtain export approval, Cardiac Pathways may be required to
provide the FDA with documentation from the medical device regulatory authority
of the country in which the study is to be conducted or the purchaser is
located, stating that the device has the approval of the country. In addition,
the FDA must find that the exportation of the device is not contrary to the
public health and safety of the


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country in order for Cardiac Pathways to obtain the permit. We currently have
marketing authorization in one or more Tier I countries for all our clinically
used products. The RPM Tracking System products are currently undergoing the
process and clinical trials necessary to obtain regulatory approvals in Japan.


WE FACE UNCERTAINTY OVER REIMBURSEMENT AND HEALTHCARE REFORM


     In the United States, health care providers, including hospitals and
physicians, that purchase medical products for treatment of their patients,
generally rely on third party payors, principally federal Medicare, state
Medicaid and private health insurance plans, to reimburse all or a part of the
costs and fees associated with the procedures performed using these products.
Our success will depend upon, among other things, the ability of health care
providers to obtain satisfactory reimbursement from third party payors for
medical procedures in which our products are used. Third party payors may deny
reimbursement if they determine that a prescribed device has not received
appropriate regulatory clearances or approvals, is not used in accordance with
cost-effective treatment methods as determined by the payor, or is experimental,
unnecessary or inappropriate. Third party reimbursement is generally provided on
the basis of the procedure's diagnosis-related group (DRG) code as established
by the United States Healthcare Financing Administration (HCFA). The failure of
the procedures in which our products are used or an insufficient level of
reimbursements for such procedures would have a material adverse effect on our
business, financial condition and results of operations. In addition, medical
equipment reimbursements have been mandated by statute to be reduced in the
past, and there can be no assurance that any such reimbursements with respect to
Cardiac Pathways' products will be adequate or provided at all. Failure by
hospitals and other users of our products to obtain reimbursement from third
party payors, or changes in government and private third party payors' policies
toward reimbursement for procedures employing our products, would have a
material adverse effect on Cardiac Pathways' business, financial condition and
results of operations. Moreover, we are unable to predict what additional
legislation or regulation, if any, relating to the health care industry or third
party coverage and reimbursement may be enacted in the future, or what effect
such legislation or regulation would have on Cardiac Pathways.



     Reimbursement systems in international markets vary significantly by
country and by region within some countries, and reimbursement approvals must be
obtained on a country by country basis. Many international markets have
government managed health care systems that control reimbursement for new
products and procedures. In most markets, there are private insurance systems as
well as government managed systems. Market acceptance of our products will
depend on the availability and level of reimbursement in international markets
targeted by Cardiac Pathways. There can be no assurance that we will obtain
reimbursement in any country within a particular time, for a particular amount,
or at all.



     Regardless of the type of reimbursement system, we believes that physician
advocacy of our products will be required to obtain reimbursement. Cardiac
Pathways believes that less invasive procedures generally provide less costly
overall therapies as compared to conventional drug, surgery and other
treatments. In addition, Cardiac Pathways believes that treatment with its
products will be more efficacious than currently available therapies. Cardiac
Pathways anticipates that hospital administrators and physicians would justify
the use of its products by the attendant cost savings and clinical benefits that
Cardiac Pathways believes would be derived from the use of its products.
However, there can be no assurance that this will be the case. There can be no
assurance that reimbursement for our products will be available in the United
States or in international markets under either government or private
reimbursement systems, or that physicians will support and advocate
reimbursement procedures using the Cardiac Pathways' products.


WE FACE PRODUCT LIABILITY RISKS AND MAY NOT BE ABLE TO OBTAIN ADEQUATE INSURANCE


     The development, manufacture and sale of medical products entail
significant risk of product liability claims and product failure claims. Cardiac
Pathways has only limited commercial sales to date and does not yet have, and
will not have for a number of years, sufficient clinical data to allow us to
measure the risk of such claims with respect to its products. Cardiac Pathways
faces an inherent business risk of financial exposure to product liability
claims in the event that the use of its products results in personal injury or
death. Cardiac Pathways also faces the possibility that defects in the design or
manufacture of its

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products might necessitate a product recall. There can be no assurance that we
will not experience losses due to product liability claims or recalls in the
future. In addition, we will require increased product liability coverage if any
of our potential products are successfully commercialized. Such insurance is
expensive, difficult to obtain and may not be available in the future on
acceptable terms, or at all. Any claims against Cardiac Pathways regardless of
their merit or eventual outcome could have a material adverse effect upon our
business, financial condition and results of operations.



WE RELY ON A CONTINUOUS POWER SUPPLY TO CONDUCT OUR OPERATIONS, AND CALIFORNIA'S
CURRENT ENERGY CRISIS COULD DISRUPT OUR OPERATIONS AND INCREASE OUR EXPENSES



     California is in the midst of an energy crisis that could disrupt our
operations and increase our expenses. In the event of an acute power shortage,
that is, when power reserves for the State of California fall below 1.5%,
California has on some occasions implemented, and may in the future continue to
implement, rolling blackouts throughout California. We currently do not have
backup generators or alternate sources of power in the event of a blackout, and
our current insurance does not provide coverage for any damages we or our
customers may suffer as a result of any interruption in our power supply. If
blackouts interrupt our power supply, we would be temporarily unable to continue
operations at our facilities. Any such interruption in our ability to continue
operations at our facilities could damage our reputation, harm our ability to
retain existing customers and to obtain new customers, and could result in lost
revenue, any of which could substantially harm our business and results of
operations.


WE DEPEND ON KEY PERSONNEL AND MUST CONTINUE TO ATTRACT AND RETAIN KEY EMPLOYEES
AND CONSULTANTS


     Our ability to operate successfully depends in significant part upon the
continued service of certain key scientific, technical, clinical, regulatory and
managerial personnel, and our continuing ability to attract and retain
additional highly qualified scientific, technical, clinical, regulatory and
managerial personnel. Competition for such personnel is intense, and there can
be no assurance that we can retain such personnel or that we can attract or
retain other highly qualified scientific, technical, clinical, regulatory and
managerial personnel in the future, including key sales and marketing personnel.
The loss of key personnel or the inability to hire and retain qualified
personnel could have a material adverse effect upon our business, financial
condition and results of operations.


OUR MANAGEMENT TEAM IS NEW TO CARDIAC PATHWAYS


     Cardiac Pathways' management has recently gone through a significant
restructuring. Our new President and Chief Executive Officer, Thomas M.
Prescott, joined Cardiac Pathways in May 1999. In addition, our Chief Financial
Officer and Vice President, Sales each joined Cardiac Pathways in January 2000.
We also hired a new Vice President of Human Resources who joined us in July 2000
and a new Vice President, Operations who joined us in December 2000. There can
be no assurance that these newly hired officers of Cardiac Pathways will be able
to operate effectively with that portion of the management team that was
retained.


OUR FUTURE SUCCESS IS DEPENDENT ON OUR ABILITY TO EXPAND OUR MANUFACTURING AND
MARKETING EFFORTS


     In order to manufacture and market its products in commercial quantities,
Cardiac Pathways believes that it will be required to expand its operations,
particularly in the areas of manufacturing and sales and marketing and, in
connection therewith, to have new personnel to work in these areas. There can be
no assurance that our officers and sales and marketing personnel will be able to
build a successful sales force or that they will be able to operate effectively
with the existing management team. As Cardiac Pathways expands its operations in
these areas, such expansion will likely result in new and increased
responsibilities for management personnel and place significant strain upon our
management, operating and financial systems and resources. To accommodate any
such growth and compete effectively, Cardiac Pathways will be required to
implement and improve information systems, procedures, and controls, and to
expand, train, motivate and manage its work force. Any failure to implement and
improve our operational, financial and


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   13


management systems or to expand, train, motivate or manage employees as required
by future growth, if any, could have a material adverse effect on our business,
financial condition and results of operations.


OUR STOCK PRICE IS HIGHLY VOLATILE

     The market price of shares of our common stock, like that of the common
stock of many medical product and technology companies, has in the past been,
and is likely in the future to continue to be highly volatile. Factors that have
a significant effect on the market price of our common stock include:


     - fluctuations in our operating results,


     - the fact that our common stock is thinly traded,

     - the proportion of ownership between common stockholders and Series B
       Convertible Preferred stockholders,


     - announcements of technological innovations or new commercial products by
       Cardiac Pathways or competitors,


     - government regulation,

     - changes in the current structure of the health care financing and payment
       systems,

     - developments in or disputes regarding patent or other proprietary rights,

     - release of reports by securities analysts and changes in securities
       analysts recommendations,

     - economic and other external factors, and

     - general market conditions.


     Moreover, the stock market has from time to time experienced extreme price
and volume fluctuations which have particularly affected the market prices for
medical products and high technology companies and which have often been
unrelated to the operating performance of such companies. These broad market
fluctuations, as well as general economic, political and market conditions, may
adversely affect the market price of our common stock. In the past, following
periods of volatility in the market price of a company's stock, securities class
action litigation has occurred against the issuing company. There can be no
assurance that such litigation will not occur in the future with respect to
Cardiac Pathways. Such litigation could result in substantial costs and a
diversion of management's attention and resources, which could have a material
adverse effect on our business, operating results and financial condition. Any
adverse determination in such litigation could also subject Cardiac Pathways to
significant liabilities.


HOLDERS OF OUR SERIES B PREFERRED STOCK ARE ENTITLED TO SIGNIFICANT RIGHTS AND
PREFERENCES


     Cardiac Pathways has 27,250 shares of Series B Convertible Preferred Stock
outstanding which are convertible, at the option of the holder, into 5.94
million shares of our common stock. The holders of Series B Convertible
Preferred Stock are entitled to significant rights, preferences and privileges
over holders of common stock including the right to a preferential cumulative
dividend, to certain redemption rights and to a substantial liquidation payment
preference over our common stock which is also payable upon any transaction or
series of transactions (including, without limitation, any merger,
reorganization or consolidation) involving a transfer of 50% or more of the
outstanding voting power of Cardiac Pathways.



     The holders of Series B Convertible Preferred Stock are also entitled to
certain registration rights and enjoy certain protective rights in that their
consent is required to effect certain corporate transactions including, but not
limited to, amending our certificate of incorporation or by-laws, issuing common
or preferred stock, declaring dividends or selling all or substantially all of
our stock or assets. It is likely that the preferences and rights enjoyed by the
holders of Series B Convertible Preferred Stock has a negative impact the market
price of the common stock of Cardiac Pathways. Also, if these holders, by
converting their Series B Convertible Preferred Stock into common stock and then
exercising their registration rights, cause a large number of securities to be
registered and sold in the public market, such sales could materially and
adversely affect the market price for Cardiac Pathways' common stock. In
addition, if we were to include in a registration statement shares held by these
holders pursuant to the exercise of their


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registration rights, such sales may impede our ability to raise needed capital.
For a more complete description of the rights, preferences and privileges
attaching to the Series B Convertible Preferred Stock refer to the section of
our Annual Report on Form 10-K/A for the year ended June 30, 2000, which is
incorporated herein by reference, entitled "Item 5. Market for Registrant's
Common Equity and Related Stockholder Matters."


THE HOLDERS OF OUR SERIES B PREFERRED STOCK EXERCISE SIGNIFICANT INFLUENCE OVER
US


     The holders of Series B Convertible Preferred Stock beneficially own an
aggregate of approximately 54.2% of the outstanding voting stock of Cardiac
Pathways and are entitled to elect three of five directors to Cardiac Pathways'
Board of Directors. These stockholders, if acting together, will be able to
significantly influence all matters requiring approval of either the Board of
Directors or the stockholders of Cardiac Pathways, including the approval of
significant corporate transactions. This concentration of ownership may also
delay, deter or prevent a change in control and may make some transactions more
difficult or impossible to complete without the support of these stockholders.


THE SALE OR AVAILABILITY FOR SALE OF SUBSTANTIAL AMOUNTS OF OUR COMMON STOCK
COULD CAUSE A DECLINE IN THE MARKET PRICE OF OUR COMMON STOCK, EVEN IF OUR
BUSINESS IS DOING WELL


     Sales of substantial amounts of our common stock in the public market or
the perception that these sales could occur could cause a decline in the market
price of our common stock, especially given the thin trading volume of our
publicly held common stock, and could impair our future ability to raise capital
through offerings of our common stock. Upon the closing of our private placement
financing, which occurred on December 26, 2000, Cardiac Pathways had outstanding
an aggregate of 9,000,852 shares of common stock. Of these outstanding shares,
2,142,029 are currently publicly held and 5,858,823 shares may be sold pursuant
to this prospectus and upon such sale will be freely tradable without
restriction or further registration, unless purchased by our "affiliates" as
that term is defined in Rule 144 under the Securities Act of 1933. The
availability for sale of such shares could materially and adversely affect the
market price of our common stock.


               SPECIAL NOTE REGARDING FORWARD LOOKING STATEMENTS

     We have made forward looking statements in this prospectus that are subject
to risks and uncertainties. Forward looking statements include information
concerning possible or assumed future results of operations of Cardiac Pathways.
Also, when we use such words as "intends," "believes," "expects," "anticipates,"
"plans" or similar expressions, we are making forward looking statements. You
should note that an investment in our securities involves risks and
uncertainties that could affect future financial results. Our actual results
could differ materially from those anticipated in these forward looking
statements as a result of factors, including those set forth in "Risk Factors"
and elsewhere in this prospectus.

                                USE OF PROCEEDS

     Cardiac Pathways will not receive any of the proceeds from the sale of the
shares offered by this prospectus. All proceeds from the sale of the shares
offered by this prospectus will be for the account of the selling stockholders,
as described below.

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   15

                              SELLING STOCKHOLDERS

     The following table sets forth, to our knowledge, the names of each of the
selling stockholders, the number of Common Equivalent Shares that each selling
stockholder owns, the number of shares of common stock owned by each selling
stockholder that may be offered for sale from time to time by this prospectus
and the number of Common Equivalent Shares to be held by each selling
stockholder assuming the sale of all the common stock offered hereby.

     The selling stockholders are certain stockholders who are entitled to
registration rights. We may amend or supplement this prospectus from time to
time to update the disclosure set forth herein.




                                                   COMMON EQUIVALENT
                                                  SHARES BENEFICIALLY                        COMMON EQUIVALENT
                                                     OWNED PRIOR TO                         SHARES BENEFICIALLY
                                                      OFFERING(1)           NUMBER OF       OWNED AFTER OFFERING
                                                 ----------------------    SHARES BEING    ----------------------
          NAME OF SELLING STOCKHOLDER             NUMBER     PERCENT(2)     OFFERED(3)      NUMBER     PERCENT(2)
          ---------------------------            ---------   ----------    ------------    ---------   ----------
                                                                                        
Van Wagoner Funds..............................  4,714,312      31.6%       3,529,412      1,184,900       7.9%
Bank of America Ventures(4)....................  2,798,755      18.7%         500,000      2,210,520      14.8%
BA Venture Partners V..........................    415,235       2.8%          88,235        327,000       2.2%
State of Wisconsin Investment Board............  2,260,315      15.1%         588,235      1,672,080      11.2%
Special Situations Private Equity Fund,
  L.P. ........................................    582,888       3.9%         470,588        112,300         *
Morgan Stanley Venture Partners III, L.P.(5)...  2,790,035      18.7%         516,062      2,201,800      14.7%
Morgan Stanley Venture Investors III, L.P. ....    231,363       1.5%          49,551        183,556       1.2%
The Morgan Stanley Venture Partners
  Entrepreneur Fund, L.P. .....................    105,680         *           22,622         83,930         *
Faria Fund Ltd. ...............................     47,059         *           47,059              0         *
Trellis Health Ventures, L.P. .................    132,529         *           23,529        109,000         *
Fogarty Family Revocable Trust.................    132,529         *           23,529        109,000         *



- -------------------------
 *  Less than 1%

(1) The share capital of Cardiac Pathways consists of (i) common stock,
    9,000,852 shares of which were outstanding as of December 21, 2000, (ii)
    Series B Convertible Preferred Stock, 27,250 shares of which were
    outstanding as of December 21, 2000, (iii) 14,628 shares of common stock and
    300 shares of Series B Convertible Preferred Stock subject to outstanding
    warrants to purchase such shares, (iv) Preferred Share Purchase Rights. Each
    share of Series B Convertible Preferred Stock is convertible into 218 shares
    of common stock and entitles the holder thereof to a number of votes, on all
    matters which properly come before the stockholders of Cardiac Pathways,
    equal to the number of shares of common stock issuable on conversion of the
    shares of Series B Convertible Preferred Stock held by such holder. For the
    purposes of this table, the term "Common Equivalent Shares" shall refer to
    shares of common stock and shares of Series B Convertible Preferred Stock on
    an as converted basis.

(2) Based on 14,941,352 Common Equivalent Shares outstanding as of December 21,
    2000 (consisting of 9,000,852 shares of common stock and 27,250 shares of
    Series B Convertible Preferred Stock convertible into 5,940,500 shares of
    common stock).


(3) Shares being offered consist solely of common stock of Cardiac Pathways.



(4) Includes 88,235 shares of common stock and 1,500 shares of Series B
    Convertible Preferred Stock (convertible into 327,000 shares of common
    stock) held by BA Venture Partners V (one of the selling stockholders), an
    affiliate of Bank of America Ventures. Bank of America Ventures has
    nominated Mark J. Brooks and Anchie V. Kuo M.D. as members of the Cardiac
    Pathways Board of Directors. Each has served as a member of the Cardiac
    Pathways Board of Directors since July 1999. Mr. Brooks is a general partner
    and managing director of BA Venture Partners. Bank of America Ventures and
    BA Venture Partners V are affiliates of Bank America Securities LLC, a
    registered broker-dealer.



(5) Includes (i) 834 shares of Series B Convertible Preferred Stock (convertible
    into 181,812 shares of common stock) and 49,551 shares of common stock held
    by Morgan Stanley Venture Investors III, L.P. (one of the selling
    stockholders), (ii) 381 shares of Series B Convertible Preferred Stock
    (convertible into 83,058 shares of


                                       13
   16


    common stock) and 22,622 shares of common stock held by The Morgan Stanley
    Venture Partners Entrepreneur Fund, L.P. (one of the selling stockholders),
    and (iii) 100 shares of Series B Convertible Preferred Stock (convertible
    into 21,800 shares of common stock) held by Morgan Stanley Dean Witter
    Equity Funding, Inc. each of which are affiliates of Morgan Stanley Venture
    Partners III, L.P. Morgan Stanley Venture Partners has nominated M. Fazle
    Husain as a member of the Cardiac Pathways Board of Directors. He has served
    as a member of the Cardiac Pathways Board of Directors since July 1999. Mr.
    Husain is a principal of Morgan Stanley Dean Witter & Co. and a managing
    member and/or general partner of various investment funds affiliated with
    Morgan Stanley Venture Partners. Morgan Stanley Venture Partners III, L.P.,
    Morgan Stanley Venture Investors III, L.P. and The Morgan Stanley Venture
    Partners Entrepreneur Fund, L.P. are affiliates of Morgan Stanley Dean
    Witter & Co., a registered broker-dealer.


                                       14
   17

                              PLAN OF DISTRIBUTION

     On November 7, 2000, we entered into a common stock purchase agreement with
the selling stockholders pursuant to which we sold 5,858,823 shares of our
common stock at a purchase price of $4.25 per share. Pursuant to that sale, we
agreed to register the shares under the Securities Act for resale to the public.
Under a registration rights agreement between Cardiac Pathways and the selling
stockholders, we must use best efforts to cause this registration statement to
be declared effective by the Securities and Exchange Commission as soon as
practicable and to keep this registration statement, or a replacement,
continuously effective under the Securities Act until the earlier of: (i) two
years from the effective date of this prospectus, subject to extension in some
circumstances, (ii) such time as all of the shares offered by this prospectus
may be sold by the selling stockholders within a three month period without
volume limitation pursuant to Rule 144 of the Securities Act, or (iii) such time
as the selling stockholders have sold all shares offered by this prospectus or a
replacement prospectus.

     The sale of all or a portion of the shares of common stock offered hereby
by the selling stockholders may be effected from time to time at prevailing
market prices at the time of such sales, at prices related to such prevailing
prices, at fixed prices that may be changed or at negotiated prices. The selling
stockholders may effect such transactions by selling directly to purchasers in
negotiated transactions, to dealers acting as principals or through one or more
brokers, or any combination of these methods of sale. In addition, shares may be
transferred in connection with the settlement of call options, short sales or
similar transactions that may be effected by the selling stockholders. Dealers
or brokers may receive compensation in the form of discounts, concessions or
commissions from the selling stockholders. The selling stockholders and any
brokers or dealers that participate in the distribution may under certain
circumstances be deemed to be "underwriters" within the meaning of the
Securities Act, and any commissions received by such brokers or dealers and any
profits realized on the resale of shares by them may be deemed to be
underwriting discounts and commissions under the Securities Act. Cardiac
Pathways and the selling stockholders may agree to indemnify such brokers or
dealers against certain liabilities, including liabilities under the Securities
Act.

     To the extent required under the Securities Act or the rules of the
Securities and Exchange Commission, a supplemental prospectus will be filed,
disclosing (i) the name of any such brokers or dealers, (ii) the number of
shares involved, (iii) the price at which such shares are to be sold, (iv) the
commissions paid or discounts or concessions allowed to such brokers or dealers,
where applicable, (v) that such brokers or dealers did not conduct any
investigation to verify the information set out in this prospectus, as
supplemented, and (vi) other facts material to the transaction.

     There is no assurance that the selling stockholders will sell any or all of
the shares of common stock offered hereby.

     We have agreed to pay the expenses incurred in connection with the
registration of the shares of common stock offered hereby. The selling
stockholders will be responsible for all selling commissions, transfer taxes and
related charges in connection with the offer and sale of such shares.

                                 LEGAL MATTERS

     Certain legal matters in connection with this offering will be passed upon
for Cardiac Pathways by Wilson Sonsini Goodrich & Rosati, Professional
Corporation, San Francisco, California.

                                    EXPERTS


     Ernst & Young LLP, independent auditors, have audited our consolidated
financial statements and schedule included in our Annual Report on Form 10-K/A
for the year ended June 30, 2000, as set forth in their report, which is also
incorporated here in by reference in this prospectus and elsewhere in the
registration statement. Our financial statements and schedule are incorporated
by reference in reliance upon Ernst & Young LLP's report, given upon their
authority as experts in accounting and auditing.


                                       15
   18

                      WHERE YOU CAN FIND MORE INFORMATION

     As required by Section 13(a) of the Securities Exchange Act of 1934, we
file annual, quarterly and special reports, proxy statements and other
information with the SEC. You may read and copy any document we file at the
SEC's public reference rooms located at 450 Fifth Street, N.W., Washington,
D.C., 20549, and in New York, New York and Chicago, Illinois. Please call the
SEC at 1-800-SEC-0330 for further information on the public reference rooms. Our
SEC filings are also available to the public from the SEC's web site at
http://www.sec.gov.

     We have filed with the Securities and Exchange Commission a registration
statement on Form S-3 under the Securities Act with respect to the common stock
offered hereby. This prospectus, which is part of the registration statement,
does not contain all of the information set forth in the registration statement.
Certain parts of the registration statement are omitted from the prospectus in
accordance with the rules and regulations of the Securities and Exchange
Commission. You should review the registration statement and its exhibits and
schedules for further information regarding Cardiac Pathways and the common
stock offered hereby. This prospectus contains descriptions of some of our
contracts and other documents. These descriptions are not complete. We encourage
you to review the complete copies of these contracts and other documents that
have been filed as exhibits to our reports and other information filed with the
Securities and Exchange Commission pursuant to the Exchange Act or registration
statements filed with the Securities and Exchange Commission pursuant to the
Securities Act.

                     INFORMATION INCORPORATED BY REFERENCE

     The SEC allows us to "incorporate by reference" the information we file
with it, which means that we can disclose important information to you by
referring you to those documents. The information incorporated by reference is
considered to be part of this prospectus, and later information filed with the
SEC will update and supersede this information. We incorporate by reference the
documents listed below and any future filings made with the SEC under Section
13(a), 13(c), 14 or 15(d) of the Exchange Act until this offering is completed:

          (1) Our Quarterly Report on Form 10-Q for the quarter ended September
     30, 2000;

          (2) Our Current Report on Form 8-K, filed with the SEC on December 27,
     2000;

          (3) Our Current Report on Form 8-K, filed with the SEC on November 7,
     2000;

          (4) Our Annual Report on Form 10-K/A for the year ended June 30, 2000;
     and

          (5) The description of our common stock contained in our Registration
     Statement on Form 8-A filed pursuant to Section 12 of the Exchange Act and
     declared effective on June 12, 1996, including any amendments or reports
     filed for the purpose of updating such description.

          (6) The description of our preferred share purchase rights contained
     in our Registration Statement on Form 8-A, filed May 15, 1997 pursuant to
     Section 12 of the Exchange Act and declared effective on May 22, 1997,
     including any amendments or reports filed for the purpose of updating such
     description.

     You may request a copy of these filings, at no cost, by writing or
telephoning us at the following address:

                       Eldon Bullington
                       Chief Financial Officer
                       Cardiac Pathways Corporation
                       995 Benecia Avenue
                       Sunnyvale, California 94085
                       (408) 737-0505

                                       16
   19

     You should rely only on the information incorporated by reference or
provided in this prospectus as it may be amended or supplemented. We have
authorized no one to provide you with different information.

     No dealer, salesperson or other person is authorized to give any
information or to represent anything not contained in this prospectus as it may
be amended or supplemented. You must not rely on any unauthorized information or
representations. This prospectus is an offer to sell only the shares offered
hereby, but only under circumstances and in jurisdictions where it is lawful to
do so. The information contained in this prospectus is current only as of its
date.
   20

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

                                5,858,823 Shares

                                 [CARDIAC LOGO]

                          CARDIAC PATHWAYS CORPORATION

                                  Common Stock

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
   21

                                    PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.

     The following table sets forth all expenses, other than the underwriting
discounts and commissions, payable by the Registrant in connection with the sale
of the securities being registered. All amounts shown are estimates except for
the SEC registration fee.



                                                           
SEC registration fee........................................  $  5,214
Accountant's fees and expenses..............................    20,000
Printing Costs..............................................    20,000
Legal Fees..................................................    50,000
Miscellaneous...............................................     4,786
                                                              --------
  Total.....................................................  $100,000
                                                              ========



ITEM 15. INDEMNIFICATION OF DIRECTORS AND OFFICERS.

     Section 102 of the Delaware General Corporation Law provides that directors
will not be personally liable to the Registrant or its stockholders for monetary
damages for breach of their fiduciary duties as directors, except for liability
(i) for any breach of their duty of loyalty to the corporation or its
stockholders; (ii) for acts or omissions not in good faith or that involve
intentional misconduct or a knowing violation of law; (iii) for unlawful
payments of dividends or unlawful stock purchases or redemptions as provided in
Section 174 of the Delaware General Corporation Law; or (iv) for any transaction
from which the director derives an improper personal benefit. This provision
eliminates the personal liability of directors for monetary damages for actions
involving a breach of their fiduciary duty of care, including any such actions
involving gross negligence. The Registrant's Restated Certificate of
Incorporation provides that, to the fullest extent permitted by the Delaware
General Corporation Law, the Registrant's directors will not be personally
liable to the Registrant or its stockholders for monetary damages for breach of
their fiduciary duties as directors.


     Section 145 of the Delaware General Corporation Law authorizes a court to
award, or a corporation's Board of Directors to grant, indemnification to
directors and officers in terms sufficiently broad to permit such
indemnification under certain circumstances for liabilities (including
reimbursement for expenses incurred) arising under the Securities Act. The
Registrant's Restated Certificate of Incorporation permits the Registrant to
indemnify its directors, officers and employees to the maximum extent permitted
by the Delaware General Corporation Law. The Registrant's Bylaws require it to
indemnify its directors and officers, and permit the Registrant to indemnify its
employees and other agents, to the maximum extent permitted by the Delaware
General Corporation Law.


     The Registrant and the selling stockholders have entered into a
Registration Rights Agreement which provides for cross-indemnification of each
such stockholder, on the one hand, and the Registrant, its officers, directors
and controlling persons, and each other such stockholder, on the other hand, for
certain liabilities arising under the Securities Act or otherwise.


     The Registrant has also obtained directors and officers insurance to insure
its directors and officers against certain liabilities, including certain
liabilities under United States securities laws.


                                      II-1
   22

ITEM 16. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.




EXHIBIT
NUMBER                       DESCRIPTION OF DOCUMENT
- -------                      -----------------------
        
  5.1+     Opinion of Wilson Sonsini Goodrich & Rosati, Professional
           Corporation
 10.33     Registration Rights Agreement dated November 7, 2000 by and
           among Cardiac Pathways and the selling stockholders
 23.1+     Consent of Wilson Sonsini Goodrich & Rosati, Professional
           Corporation
 23.2      Consent of Ernst & Young LLP, Independent Auditors
 24.1+     Power of Attorney



- -------------------------

+Previously filed


ITEM 17. UNDERTAKINGS.

A. UNDERTAKING REGARDING RULE 415 OFFERING.

     The undersigned Registrant hereby undertakes:

          (1) to file, during any period in which offers or sales are being
     made, a post-effective amendment to this Registration Statement: (i) to
     include any prospectus required by Section 10(a)(3) of the Securities Act,
     (ii) to reflect in the prospectus any facts or events arising after the
     effective date of the Registration Statement (or the most recent
     post-effective amendment thereof) which, individually or in the aggregate,
     represent a fundamental change in the information set forth in the
     Registration Statement, and (iii) to include any material information with
     respect to the plan of distribution not previously disclosed in the
     Registration Statement or any material change to such information in the
     Registration Statement; provided, however, that clauses (i) and (ii) will
     not apply if the information required to be included in a post-effective
     amendment by those clauses is contained in periodic reports filed by the
     Registrant pursuant to Section 13 or Section 15(d) of the Exchange Act that
     are incorporated by reference in the Registration Statement;

          (2) that, for the purpose of determining any liability under the
     Securities Act, each such post-effective amendment shall be deemed to be a
     new registration statement relating to the securities offered therein, and
     the offering of such securities at that time shall be deemed to be the
     initial bona fide offering thereof; and

          (3) to remove from registration by means of a post-effective amendment
     any of the securities being registered which remain unsold at the
     termination of this offering.

B. UNDERTAKING REGARDING FILINGS INCORPORATING SUBSEQUENT EXCHANGE ACT DOCUMENTS
BY REFERENCE.

     The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act, each filing of the
Registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
Exchange Act (and, where applicable, each filing of an employee benefit plan's
annual report pursuant to Section 15(d) of the Exchange Act) that is
incorporated by reference in the Registration Statement shall be deemed to be a
new registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

     We hereby undertake to deliver or cause to be delivered with the
prospectus, to each person to whom the prospectus is sent or given, the latest
annual report to security holders that is incorporated by reference in the
prospectus and furnished pursuant to and meeting the requirements of Rule 14a-3
or Rule 14c-3 under the Exchange Act; and, where interim financial information
required to be presented by Article 3 of Regulation S-X are not set forth in the
prospectus, to deliver, or cause to be delivered to each person to whom the
prospectus is sent or given, the latest quarterly report that is specifically
incorporated by reference in the prospectus or provide such interim financial
information.

                                      II-2
   23

C. UNDERTAKING REGARDING INDEMNIFICATION.

     Insofar as indemnification for liabilities arising under the Securities Act
may be permitted to directors, officers and controlling persons of the
Registrant pursuant to the foregoing provisions, or otherwise, the Registrant
has been advised that in the opinion of the SEC such indemnification is against
public policy as expressed in the Securities Act and is, therefore,
unenforceable. In the event that a claim for indemnification against such
liabilities (other than the payment by the Registrant of expenses incurred or
paid by a director, officer or controlling person of the Registrant in the
successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Securities Act and will be governed by the final
adjudication of such issue.


     The undersigned Registrant hereby undertakes that:


          (1) For purposes of determining any liability under the Securities
     Act, the information omitted from the form of prospectus filed as part of
     this registration statement in reliance upon Rule 430A and contained in a
     form of prospectus filed by the registrant pursuant to Rule 424(b)(1) or
     (4) or 497(h) under the Securities Act shall be deemed to be part of this
     registration statement as of the time it was declared effective.

          (2) For the purpose of determining any liability under the Securities
     Act, each post-effective amendment that contains a form of prospectus shall
     be deemed to be a new registration statement relating to the securities
     offered therein, and the offering of such securities at that time shall be
     deemed to be the initial bona fide offering thereof.

                                      II-3
   24

                                   SIGNATURES


     Pursuant to the requirements of the Securities Act of 1933, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized in the City of Sunnyvale, California, on January 31, 2001.


                                          CARDIAC PATHWAYS CORPORATION


                                          By:    /s/ ELDON M. BULLINGTON

                                            ------------------------------------

                                                    Eldon M. Bullington


                                                  Chief Financial Officer



     Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons in the
capacities and on the dates indicated.





                      SIGNATURE                                    TITLE                     DATE
                      ---------                                    -----                     ----
                                                                                 
                 THOMAS M. PRESCOTT*                     President, Chief Executive    January 31, 2001
- -----------------------------------------------------       Officer and Director
                 Thomas M. Prescott                    (Principal Executive Officer)

               /s/ ELDON M. BULLINGTON                    Chief Financial Officer      January 31, 2001
- -----------------------------------------------------     (Principal Financial and
                 Eldon M. Bullington                        Accounting Officer)

                   MARK J. BROOKS*                                Director             January 31, 2001
- -----------------------------------------------------
                   Mark J. Brooks

                  M. FAZLE HUSAIN*                                Director             January 31, 2001
- -----------------------------------------------------
                   M. Fazle Husain

                   ANCHIE Y. KUO*                                 Director             January 31, 2001
- -----------------------------------------------------
                    Anchie Y. Kuo

                WILLIAM N. STARLING*                              Director             January 31, 2001
- -----------------------------------------------------
                 William N. Starling

            *By: /s/ ELDON M. BULLINGTON
  ------------------------------------------------
                 Eldon M. Bullington
                  Attorney-In-Fact



                                      II-4
   25

                                 EXHIBIT INDEX




EXHIBIT
NUMBER                      DESCRIPTION OF DOCUMENT
- -------                     -----------------------
       
  5.1+    Opinion of Wilson Sonsini Goodrich & Rosati, Professional
          Corporation
 10.33    Registration Rights Agreement dated November 7, 2000 by and
          among Cardiac Pathways and the selling stockholders
 23.1+    Consent of Wilson Sonsini Goodrich & Rosati, Professional
          Corporation
 23.2     Consent of Ernst & Young LLP, Independent Auditors
 24.1+    Powers of Attorney



- -------------------------

+Previously filed