United States
                     SECURITIES AND EXCHANGE COMMISSION
                           Washington, D.C.  20549
                                        
                                        
                                 Form 10-Q
                                        
                                        
__X__     Quarterly report pursuant to Section 13 or 15(d) of the
          Securities Exchange Act of 1934.

          For the quarterly period ended April 3, 1998 or

_____     Transition report pursuant to Section 13 or 15(d) of the
          Securities Exchange Act of 1934.

           For the transition period from  ____________to ___________.


                             Commission File Number
                                     0-27880
                                        

                          CardioThoracic Systems, Inc.
                     --------------------------------------
             (Exact Name of Registrant as Specified in Its Charter)
                                        

                  Delaware                           94-3228757
                 ----------                         ------------
          (State or Other Jurisdiction of         (I.R.S. Employer
          Incorporation or Organization)          Identification No.)

        10600 N. Tantau Ave., Cupertino, CA               95014-0739
     ----------------------------------------------     --------------
      (Address of Principal Executive Offices)            (Zip Code)

         Registrant's telephone, including area code: (408) 342-1700


    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 requirements for the past 90 days.

                           Yes __X__   No _______


    As of April 30, 1998, there were 13,865,519 shares of the Registrant's
    Common Stock outstanding.

                                      1



                          CARDIOTHORACIC SYSTEMS, INC.
                                    INDEX


PART I.  FINANCIAL INFORMATION                               PAGE NO.
                                                             --------

     Item 1.  Financial Statements

              Consolidated Condensed Balance Sheets as of
              April 3, 1998 and January 2, 1998                   3

              Consolidated Condensed Statements of Operations
              for the three months ended April 3, 1998 and
              March 28, 1997                                      4

              Consolidated Condensed Statements of Cash Flows
              for the three months ended April 3, 1998 and
              March 28, 1997                                      5

              Notes to Consolidated Condensed Financial 
              Statements                                          6
 

     Item 2.  Management's Discussion and Analysis of Financial
              Condition and Results of Operations                 9


PART II.  OTHER INFORMATION                                      20

SIGNATURES                                                       24

EXHIBIT INDEX                                                    25


                                      2


                       CARDIOTHORACIC SYSTEMS, INC.
                  CONSOLIDATED CONDENSED BALANCE SHEETS
                                                                          
                                              April 3, 1998  January 2, 1998  
                                              -------------  --------------
                                              (unaudited)                
                                                        
                  ASSETS                                                 
Current assets:                                                           
  Cash and cash equivalents                      $4,279,000      $4,681,000 
  Available-for-sale securities                  38,355,000      52,105,000 
  Trade accounts receivable, net                  1,759,000       1,369,000 
  Notes receivable from officers                     87,000          87,000 
  Inventories, net                                  557,000         641,000 
  Interest receivable                             1,006,000       1,158,000 
  Prepaid expenses and other current assets         711,000         449,000 
                                               ------------    ------------
     Total current assets                        46,754,000      60,490,000 
                                                                          
Property and equipment, net                       3,677,000       3,613,000 
                                                                          
Available-for-sale securities                    12,058,000       4,048,000 
Notes receivable from officers                    1,051,000       1,073,000 
Other assets                                         73,000          52,000 
                                               ------------    ------------
     Total assets                               $63,613,000     $69,276,000 
                                               ============    ============
                                                                          
                       LIABILITIES AND STOCKHOLDERS' EQUITY                                  
                     
Current liabilities:                                                      
  Equipment note, current portion               $   460,000     $   410,000 
  Accounts payable                                1,120,000         779,000 
  Accrued liabilities                             3,759,000       4,430,000 
                                               ------------    ------------
     Total current liabilities                    5,339,000       5,619,000 
                                                                          
Bank borrowings                                   1,557,000       1,557,000 
Equipment note, less current portion              1,809,000       1,966,000 
                                               ------------    ------------
Total liabilities                                 8,705,000       9,142,000 
                                               ------------    ------------
                                                                          
Stockholders' equity:                                                     
  Common stock, par value $0.001                     14,000          14,000 
  Additional paid-in capital                    103,147,000     103,156,000 
  Deferred compensation, net                     (3,078,000)     (3,614,000) 
  Unrealized gain on available-for-sale                                   
  securities                                         14,000          17,000
  Accumulated deficit                           (45,189,000)    (39,439,000) 
                                                ------------    ------------
Total stockholders' equity                       54,908,000      60,134,000 
                                                ------------    ------------
Total liabilities and stockholders' equity      $63,613,000     $69,276,000 
                                                ============    ============
                             3                                


                            CARDIOTHORACIC SYSTEMS, INC.
                  CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS
                                    (unaudited)
                                                                             
                                                                      
                                                                             
                                   Three Months Ended  Three Months Ended    
                                      April 3, 1998      March 28, 1997
                                    -----------------   ----------------
                                                                             
                                                                    
Net sales                               $ 2,962,000       $ 2,112,000        
Cost of sales                             1,603,000         1,472,000        
                                       ------------      -------------
Gross profit                              1,359,000           640,000        
                                       ------------      -------------
                                                                             
Operating expenses:                                                          
   Research and development               2,677,000         2,051,000        
   Sales, marketing, general, and adm     5,130,000         4,309,000        
                                       ------------      ------------
     Total operating expenses             7,807,000         6,360,000        
                                       ------------      ------------   
Loss from operations                     (6,448,000)       (5,720,000)        
                                                                             
Interest income, net                        698,000         1,016,000        
                                       ------------      -------------
Net loss                                $(5,750,000)      $(4,704,000)        
                                       =============     =============
                                                                             
Net loss per common share and                                                
per common share - assuming dilution    $     (0.42)      $      (0.35)
                                       =============      =============
                                                                             
Shares used in computing net                                                 
loss per common share and per                                        
common share - assuming                                              
dilution                                 13,767,000         13,358,000
                                       =============      =============
                                                                     
   
                                      4  


                     CARDIOTHORACIC SYSTEMS, INC.
                  CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS
                                    (unaudited)

                                        Three Months Ended  Three Months Ended
                                           April 3, 1998      March 28, 1997
                                         -----------------   -----------------
Operating Activities                                                    
  Net loss                                   $(5,750,000)      $(4,704,000)
  Adjustments to reconcile net loss                                       
  to net cash used in operating activities:
   Depreciation and amortization                 421,000          214,000
   Amortization of notes receivable                                          
   from officers                                  22,000           28,000
   Allowance for bad debts and product returns    30,000           45,000
   Amortization of deferred compensation         483,000          562,000
   Changes in operating assets and liabilities:                              
     Trade accounts receivable                  (420,000)      (1,362,000)
     Inventory                                    84,000         (341,000)
     Interest receivable                         152,000           34,000
     Prepaid expenses and other current                
     assets                                     (262,000)        (144,000)
     Other assets                                (21,000)          (8,000)
     Accounts payable                            341,000          967,000
     Accrued liabilities                        (671,000)         369,000
                                            -------------     ------------
      Net cash used in operating
      activities                              (5,591,000)      (4,340,000)
                                            -------------     ------------
Investing Activities                                                         
  Purchases of property and equipment           (485,000)        (526,000)
  Purchase of available-for-sale                                             
   securities                                (18,619,000)     (18,873,000)
  Proceeds from maturities of
   available-for-sale securities              24,356,000       22,036,000
                                           -------------      ------------
      Net cash provided by 
      investing activities                     5,252,000        2,637,000
                                           -------------      ------------    
Financing Activities                                                         
  Bank borrowings                                     -         1,200,000
  Repayment of equipment note                   (107,000)         (33,000)
  Proceeds from issuance of common stock          44,000          410,000
                                            -------------      ------------
      Net cash provided by (used in)                                         
       financing activies                        (63,000)       1,577,000
                                            -------------     ------------ 
  Net decrease in cash and cash equivalents     (402,000)        (126,000)
                                                                             
  Cash and cash equivalents at                                               
   beginning of period                         4,681,000        5,184,000
                                           --------------    ------------
  Cash and cash equivalents at end of
   period                                   $  4,279,000     $  5,058,000
                                           ==============   =============

                                      5

 

                          CARDIOTHORACIC SYSTEMS, INC.
                NOTES TO CONSOLIDATED CONDENSED FINANCIAL STATEMENTS
                                  April 3, 1998
                                   (Unaudited)



Note 1.  Basis of Presentation

     The accompanying unaudited consolidated condensed financial
statements have been prepared in accordance with generally accepted
accounting principles for interim financial information and in
accordance with the instructions to Form 10-Q and Article 10 of
Regulation S-X.  Accordingly, they do not include all of the
information and footnotes required by generally accepted accounting
principles for complete financial statements.  In the opinion of
management, all adjustments (consisting of normal recurring accruals)
considered necessary for a fair presentation have been included.

     The operating results of the interim periods presented are not
necessarily indicative of the results for the year ending January 1,
1999 or for any other interim period.  The accompanying financial
statements should be read in conjunction with the audited financial
statements and notes thereto for the year ended January 2, 1998
included in the Company's Form 10-K  filed with the Securities and
Exchange Commission.


Note 2.  Formation and Business of the Company

     CardioThoracic Systems, Inc. (the Company) was incorporated on
June 15, 1995 to design, develop, manufacture and market surgical
products and systems for minimally invasive cardiac surgery.


Note 3.  Available-for-Sale Securities

     The Company has classified its investments as available-for-sale
securities.  Available-for-sale securities are carried at fair value
with unrealized gains and losses, net of tax, reported as a separate
component of stockholders' equity.  The amortized cost of available-
for-sale debt securities is adjusted for the amortization of premiums
and the accretion of discounts to maturity.  Such amortization is
included in interest income.  Realized gains and losses and declines
in value judged to be other than temporary on available-for-sale
securities are included in interest income.  The cost of securities
sold is based on the specific identification method.


                                      6

                                   

     At April 3, 1998, available-for-sale securities consist of the following:

                              Amortized   Unrealized  Unrealized    Estimated
                                Cost        Gains       Losses     Fair Value
                              ---------   ----------  ----------  ----------- 
U.S. Gov't notes and bonds   $ 1,997,000    $   -      $   -       $ 1,997,000
Gov't agency notes and bonds  14,922,000       4,000     (2,000)    14,924,000
Corporate notes and bonds     33,480,000      12,000       -        33,492,000
                             ------------  ---------   ---------   -----------
                             $50,399,000    $ 16,000   $ (2,000)   $50,413,000
                             ===========   ==========  ==========  ===========
    

     At January 2, 1998, available-for-sale securities consist of the following:

                              Amortized   Unrealized   Unrealized   Estimated
                                Cost        Gains        Losses     Fair Value
                             -----------  ----------   ----------  -----------
Gov't agency notes and bonds  10,759,000       8,000     (1,000)    10,766,000
Corporate notes and bonds     45,377,000      12,000     (2,000)    45,387,000
                             -----------  -----------  ----------   -----------
                            $ 56,136,000    $ 20,000   $ (3,000)   $56,153,000
                            ============  ===========  ===========  ===========


     Available-for-sale securities by contractual maturity at April 3, 1998 are
shown below:

                                   Amortized             Estimated
                                      Cost               Fair Value
                                --------------        ---------------
     Less than one year            $38,345,000           $38,355,000
     Due in one to two years        12,054,000            12,058,000
                                --------------         --------------
                                   $50,399,000           $50,413,000
                                ==============         ==============

Note 4.  Inventories

     Inventories, net consist of the following:

                                 April 3, 1998        January 2, 1998 
                                 --------------       ---------------
     Raw materials                 $   186,000          $    188,000
     Work-in-process                   220,000               203,000
     Finished goods                    151,000               250,000
                               ----------------       ---------------
                                   $   557,000          $    641,000
                               ================       ================


                                      7




Note 5.  Net Loss Per Share

     The Company has adopted the Financial Accounting Standards Board
Statement No. 128 "Earnings Per Share" and the Securities and Exchange
Commission Staff Accounting Bulletin No. 98. Accordingly, net loss per
share for all prior periods have been restated.  Net loss per common
share and per common share-assuming dilution, are computed using the
weighted average number of shares of common stock outstanding.  Common
equivalent shares from stock options and preferred stock are excluded
from the computation of net loss per common share-assuming dilution as
their effect is antidilutive.  No additional shares are considered to
be outstanding for either calculation under the provisions of Staff
Accounting Bulletin No. 98.

Note 6.  Stock Option Plan

     In January 1998, the Company approved the 1998 Nonstatutory Stock
Option Plan under which the officers of the Company are authorized to
enter into stock option agreements with selected individuals.  The
Company has reserved 150,000 shares of common stock for issuance under
this plan.

Note 7.  Recent Accounting Pronouncements

     The Company has adopted the provisions of Statement of Financial
Accounting Standards No. 130, "Reporting Comprehensive Income,"
effective January 3, 1998.  This statement requires the disclosure of
comprehensive income and its components in a full set of general-
purpose financial statements.  Comprehensive income is defined as net
income plus revenues, expenses, gains and losses that, under generally
accepted accounting principles, are excluded from net income.  The
components of comprehensive income which are excluded from net income
are not significant, individually or in aggregate, and therefore, no
separate statement of comprehensive income has been presented.


                                      8


     Item 2.  Management's Discussion and Analysis of Financial
Condition and Results of Operations

     The following discussion of the financial condition and results
of operations of CardioThoracic Systems, Inc. ("CTS" or the "Company")
should be read in conjunction with the Condensed Consolidated
Financial Statements and the related Notes thereto included herein.

     This report contains 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.  The Company's future results
of operations could vary significantly from those anticipated by such
statements as a result of factors described in this Management's
Discussion and Analysis of Financial Condition and Results of
Operations and under "Factors Affecting Results of Operations".

Overview

     The business of the Company was commenced in November 1993 as a
sole proprietorship, Informed Creation.  In June 1995, the business
was incorporated and as part of the Company's initial financing in
September 1995, the Company acquired all intellectual property assets
of Informed Creation. The Company has a limited operating history upon
which evaluation of its prospects can be made. Such prospects must be
considered in light of the substantial risks, expenses and
difficulties encountered by entrants into the medical device industry,
which is characterized by an increasing number of participants,
intense competition and a high failure rate. The Company began
commercial sales of its products in December 1996 and has limited
experience in manufacturing, marketing and selling the CTS MIDCAB
System, Access MV System and the CTS OPCAB System ("Company's
products" or "Company's current products"). The Company has
experienced operating losses since its inception, and, as of April 3,
1998, the Company had an accumulated deficit of approximately
$45,189,000. The development and commercialization of the Company's
products will continue to require substantial development, regulatory,
sales and marketing, manufacturing and other expenditures. The Company
expects its operating losses to continue at least through 1999 as it
expends substantial resources to continue development of the Company's
products, obtain additional regulatory clearances or approvals, build
its marketing, sales, manufacturing and finance organizations and
conduct further research and development. There can be no assurance
that the Company's products will ever gain widespread commercial
acceptance or that the Company will ever generate enough revenues to
achieve profitability.

      The Company's current products are designed to enable the majority of
cardiothoracic surgeons to perform minimally invasive cardiac surgery
("MICS") on a beating heart. Accordingly, the Company's success is
dependent upon acceptance of these procedures by the medical community
as a reliable, safe and cost effective alternative to existing
treatments for revascularizing blocked coronary arteries. To date,
MICS has been performed on a limited basis by several hundred highly
skilled cardiothoracic surgeons. Of the procedures performed to date,
the majority have been performed on a single artery, typically the

                                     9



left anterior descending artery ("LAD") or, in fewer instances, the
right coronary artery ("RCA"), and a limited number have been
performed on the circumflex artery. Currently, a significant
percentage of conventional coronary artery bypass graft ("CABG")
procedures are performed on multiple vessels. To date, multiple vessel
MICS procedures have only been performed on a limited basis, and there
can be no assurance that MICS will be effectively utilized for
multiple bypasses on a more widespread or more frequent basis. The
Company is unable to predict how quickly, if at all, MICS will be
adopted by the medical community or, if it is adopted, the number of
MICS procedures that will be performed. The medical conditions that
can be treated with MICS can also be treated by widely accepted
surgical procedures such as CABG surgery and catheter-based
treatments, including balloon angioplasty, atherectomy and coronary
stenting. Although the Company believes that MICS  has significant
advantages over competing procedures, broad-based clinical adoption of
MICS will not occur until physicians determine that the approach is an
attractive alternative to current treatments for coronary artery
disease. The Company believes that physician endorsements will be
essential for clinical adoption of MICS , and there can be no
assurance that any such endorsements will be obtained in a timely
manner, if at all. Clinical adoption will also depend upon the
Company's ability to facilitate training of cardiothoracic surgeons to
perform MICS, and the willingness of such surgeons to perform MICS
procedures. Patient acceptance of MICS will depend in part upon
physician recommendations as well as other factors, including the
degree of invasiveness, the effectiveness of the procedure and rate
and severity of complications associated with MICS as compared to
other treatments. Even if the clinical efficacy of MICS is
established, physicians may elect not to recommend the procedure
unless acceptable reimbursement from health care payors is available.
Health care payor acceptance may require evidence of the cost
effectiveness of the MICS as compared to other currently available
treatments. There can be no assurance that MICS will gain clinical
adoption. Failure of MICS to achieve significant clinical adoption
would have a material adverse effect on the Company's business,
financial condition and results of operations.

     The Company's current products are designed for beating heart
MICS and are expected to account for the great majority of the
Company's revenues in 1998. The Company's products are in the early
stage of commercialization. The Company manufactured and sold
approximately 11,000 systems in the five quarters ended April 3, 1998,
but there can be no assurance that demand for the Company's  current
or future products will be sufficient to allow profitable operations.
Failure of the Company's current and future products to be
successfully commercialized at significantly higher volumes would have
a material adverse effect on the Company's business, financial
condition and results of operations.


                                     10



     Before the Company can market certain products under development
in the United States, the Company must obtain clearance or approval
from the FDA. The Company has filed or will be filing 510(k) premarket
notifications or premarket approval ("PMA") applications with the FDA
for clearance or approval to market certain products under
development.  There can be no assurance that the FDA will act
favorably or quickly on the Company's submissions, or that significant
difficulties and costs will not be encountered by the Company in its
efforts to obtain FDA clearance or approval. Any such difficulties
could delay or preclude obtaining regulatory clearance or approval.

     In addition, there can be no assurance that the FDA will not impose
strict labeling or other requirements as a condition of its 510(k)
clearance or PMA approval, any of which could limit the Company's
ability to market  its products under development. Further, if the
Company wishes to modify a product after FDA clearance or approval,
including changes in indications or other modifications that could
affect safety and efficacy, additional clearances or approvals will be
required from the FDA. Failure to receive, or delays in receipt of,
FDA clearances or approvals, including delays resulting from an FDA
request for clinical trials or additional data as a prerequisite to
clearance or approval, or any FDA conditions that limit the ability of
the Company to market its products under development, could have a
material adverse effect on the Company's business, financial condition
and results of operations.
     
     In order for the Company to market its products under development
in Europe and certain other international jurisdictions, the Company
and its distributors and agents will have to obtain required
regulatory registrations or approvals and otherwise comply with
extensive regulations regarding safety, efficacy and quality. These
regulations, including the requirements for registrations or approvals
and the time required for regulatory review, vary from country to
country. The Company has received ISO 9001 certification and the CE
Mark approval for sale of its current products.  The CE Mark evidences
receipt of the regulatory approval necessary for commercialization in
European Union countries and eliminates the requirement to obtain
individual country approvals.  There can be no assurance that the
Company will obtain future regulatory registrations or approvals in
other such countries or that it will not be required to incur
significant costs in obtaining or maintaining its foreign regulatory
registrations or approvals. Delays in receipt of these registrations
or approvals to market its products under development, failure to
receive these clearances or approvals, or future loss of previously
received registrations or approvals could have a material adverse
effect on the Company's business, financial condition and results of
operations.

Impact of the Year 2000 Issue
     
      The Year 2000 Issue is the result of computer programs written
using two digits rather than four to define the applicable year.  Any
of the Company's computer programs that have date-sensitive software


                                     11


may recognize a date using "00" as the year 1900 rather than the year
2000.  This could result in a system failure or miscalculations
causing disruptions of operations, including, among other things, a
temporary inability to process transactions, send invoices, or engage
in similar normal business activities.

     Based on a preliminary assessment, the Company believes that
there will be no material impact on the operations of the Company due
to the Year 2000 Issue.  In late 1996 the Company acquired its
manufacturing, order entry, finance and network software from third
party vendors that have certified such software to be Year 2000
compliant.  The Company has no custom software which requires
modification.  Virtually all of the computer hardware currently owned
by the Company is Year 2000 compliant and in any event will most
likely be replaced before the year 2000 in the normal course of
business.

Results of Operations

      Three months ended April 3, 1998 compared to the three months
ended March 28, 1997.
     
     Net sales increased 40% to $3.0 million in the three months ended
April 3, 1998 compared to $2.1 million in the three months ended March
28, 1997. The increase in net sales was due primarily to a 130%
increase in unit shipments of the CTS MIDCAB System and Access MV
System offset by a 36% drop in the average selling price per unit.

     Gross profit increased to $1.4 million (46% of net sales) in the
three months ended April 3, 1998 compared to $640,000 (30% of net
sales) in the same period last year.  This improvement in gross profit
is primarily due to lower material costs per unit and higher
production volumes which resulted in increased manufacturing
efficiencies.

     Research and development expenses in the three months ended April
3, 1998 were $2.7 million compared to $2.1 million in the three months
ended March 28, 1997.  This increase was due to an increase in
research and development staff, facility costs, increased expenditures
related to the continuing development and prototyping of the
instruments associated with the OPCAB System, Modular MIDCAB System
and Ceres Saphenous Vein Harvesting System, cannulation systems and
valve attachment products.  The Company expects that research and
development expenses will continue at higher levels in 1998 when
compared to 1997.

     The Company has entered into development and licensing
agreements, and expects to enter into additional agreements in the
future, that require milestone payments which are tied to certain
events.  The timing of these milestone payments is uncertain and could
have a material impact on the operating results in the quarter and
year in which they are expensed.  No such milestone payments were
expensed in either the three months ended April 3, 1998 or March 28,
1997.

                                    12



     Sales, marketing, general and administrative expenses increased
to $5.1 million in the three months ended April 3, 1998 compared to
$4.3 million in the same period last year. This increase was due
primarily to additional sales and marketing personnel and the costs
associated with the support of a larger field sales organization. The
Company expects that sales and marketing and administrative expenses
will continue at higher levels in 1998 when compared to 1997.

     The Company has recorded deferred compensation of $14.6 million,
less cancellations of $1.9 million, for the difference between the
option exercise price or restricted stock purchase price and the
deemed fair value of the Company's Common Stock for options granted
and restricted stock sold in 1995 and early 1996 and the deemed fair
value of the Company's Common Stock for options granted to non-
employees since inception.  The deferred compensation is being
amortized to operating expenses over the related vesting period of the
shares (one to four years) and will, therefore, continue to have an
adverse effect on the Company's results of operations through 2000.
Amortization of deferred compensation charged to operating expenses in
the three months ended April 3, 1998 totaled $483,000 compared to
$562,000 for the same period last year.

     Net interest income decreased to $698,000 in the three months
ended April 3, 1998 compared to $1.0 million in the same period last
year.  This decrease was primarily due to lower average cash and
investment balances.

Liquidity and Capital Resources

     Since inception, the Company has financed its operations
primarily from the sale of equity securities.  As of April 3, 1998,
the Company had raised approximately $90.4 million (net of stock
issuance costs) from the sale of equity securities.  As of April 3,
1998, cash, cash equivalents and available-for-sale securities totaled
$54.7 million.  The Company's cash used in operations was $5.6 million
for the three months ended April 3, 1998, reflecting expenditures made
primarily to continue research and development and sales and marketing
activities, and to support its administrative infrastructure.  The
Company also spent $485,000 for the purchases of property and
equipment in the three months ended April 3, 1998.

     The Company plans to finance its operations principally from
existing cash, cash equivalents and available-for-sale securities and
interest thereon, product revenues and, to the extent available, lines
of credit.  The Company currently has an agreement with a bank for a
$5.0 million line of credit, fully secured by cash, cash equivalents
and available-for-sale securities, of which $3.4 million is available
at April 3, 1998.  The Company believes that its existing cash
balances and available-for-sale securities and interest thereon,
credit line and product revenues will be sufficient to fund its
operations through 1999.  The Company's capital requirements, and the
availability of product revenues, depend on numerous factors,
including the progress of the Company's product development programs,
the receipt of and the time required to obtain regulatory clearances

                                    13


or approvals, the resources the Company devotes to developing,
manufacturing and marketing its products, the extent to which the
Company's products receive market acceptance, and other factors.  The
Company expects to devote substantial capital resources to research
and development, to support a direct sales force and marketing
operation in the United States and Germany and to continue to support
its manufacturing capacity and facilities. Consequently, the Company
may be required to raise additional funds through public or private
financing, collaborative relationships or other arrangements.  There
can be no assurance that the Company will not require additional
funding or that such additional funding, if needed, will be available
on terms attractive to the Company, or at all, which could have a
material adverse effect on the Company's business, financial condition
and results of operations.  Any additional equity financing may
be dilutive to stockholders, and debt financing, if available, may
involve restrictive convenants.

     At April 3, 1998, the Company had approximately $31.6 million in
federal and $29.3 million in state net operating loss carryforwards,
which will expire in the years 2001 through 2018, if not utilized.
Utilization of federal income tax carryforwards is subject to certain
limitations under Section 382 of the Internal Revenue Code of 1986.
These annual limitations may result in expiration of net operating
loss carryforwards and research and development credits before they
can be fully utilized.

     The Company has adopted the provisions of Statement of Financial
Accounting Standards No. 130, "Reporting Comprehensive Income,"
effective January 3, 1998.  This statement requires the disclosure of
comprehensive income and its components in a full set of general-
purpose financial statements.  Comprehensive income is defined as net
income plus revenues, expenses, gains and losses that, under generally
accepted accounting principles, are excluded from net income.  The
components of comprehensive income which are excluded from net income
are not significant, individually or in aggregate, and therefore, no
separate statement of comprehensive income has been presented.

     Factors Affecting Results of Operations
     
     Highly Competitive Market; Risk of Alternative Therapies; Risk of
Reuse.  The medical device industry and the market for treatment of
cardiovascular disease, in particular, are characterized by rapidly
evolving technology and intense competition. A number of competitors,
including Johnson & Johnson, Boston Scientific Corporation, Guidant
Corporation and Medtronic, Inc., are currently marketing stents,
catheters, lasers, drugs and other less invasive means of treating
cardiovascular disease. Many of these less invasive treatments, as
well as CABG surgery, are widely accepted in the medical community and
have a long history of safe and effective use. Many of the Company's
competitors have substantially greater capital resources, name
recognition and expertise in and resources devoted to research and
development, manufacturing and marketing and obtaining regulatory
clearances or approvals. Furthermore, competition in the emerging
market for minimally invasive cardiac surgery is intense and is
expected to increase. Heartport, Inc., Medtronic, Inc., Johnson &

                                    14


Johnson, Guidant Corporation, Baxter International, Inc. and United
States Surgical Corp. are marketing or have announced that they are
developing products to be used in MICS procedures. There can be no
assurance that MICS  will replace any current treatments.
Additionally, even if MICS is widely adopted, there can be no
assurance that the Company's competitors will not succeed in
developing or marketing alternative procedures and technologies,
competing devices to perform the same procedure, or therapeutic drugs
that are more effective than the Company's products or that render the
Company's products or technologies obsolete or not competitive. In
addition, there can be no assurance that existing products for other
surgical uses will not be used in MICS procedures. Furthermore, sales
of the Company's products could be adversely affected by reuse,
notwithstanding the instructions in the Company's clinical protocols
and product labeling indicating that each of the components of the
Company's products is a single-use device.  Such competition or reuse
could have a material adverse effect on the Company's business,
financial condition and results of operations.

     Limited Sales, Marketing and Distribution Experience.  The
Company currently has a small sales and marketing organization when
compared to most of its competitors.  The Company sells its products
in the United States and in Germany through a direct sales force. In
certain other international markets, the Company sells its products
through distributors. There can be no assurance that the Company will
be able to build a larger direct sales force or marketing
organization, that maintaining a direct sales force or marketing
organization will be cost effective, or that the Company's sales and
marketing efforts will be successful. There can be no assurance that
the Company will be able to maintain agreements with distributors, or
that such distributors will devote adequate resources to selling the
Company's products.  Since the Company has entered into distribution
agreements for the sale of its products in certain countries, it will
be dependent upon the efforts of these third parties, and there can be
no assurance that such efforts will be successful. Failure to maintain
or grow an effective direct sales and marketing organization or to
maintain effective distributors could have a material adverse effect
on the Company's business, financial condition and results of
operations.
     
Dependence on Licenses, Patents and Proprietary Technology.  The
Company's ability to compete effectively will depend in part on its
ability to develop and maintain proprietary aspects of its technology.
The Company owns six issued United States patents. None of the issued
patents contains claims that protect the Company's current products.
In January 1998, the Company received a formal notice from the United
States Patent and Trademark Office ("USPTO") indicating that all
claims are allowable in its patent application covering the mechanical
stabilization aspects of the Company's products.  However, the USPTO
also notified the Company that the prosecution of this application is


                                     15


suspended for up to six months due to a potential interference
proceeding.  The Company is the licensee of a United States patent for
a heart valve insertion and stapling device and a United States patent
application for bipolar electrosurgical scissors that are used in the
CTS Saphenous Vein Harvesting System.  The Company also has an option
for a patent application covering methods for vessel harvesting.  The
Company has forty pending U.S. patent applications and various foreign
patent applications pending. There can be no assurance that any issued
patents or any patents which may be issued as a result of the
Company's licensed patent applications or pending United States and
foreign patent applications will provide any competitive advantages
for the Company's products or that they will not be successfully
challenged, invalidated or designed around in the future. 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 the Company's ability to
make, use and sell its products either in the United States or in
international markets.

     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 the Company will not become subject to
patent infringement claims or litigation or interference proceedings
declared by the USPTO to determine the priority of inventions. 
The defense and prosecution of intellectual property suits, USPTO
interference proceedings and related legal and administrative
proceedings are both costly and time-consuming. Litigation may be
necessary to enforce patents issued to the Company, to protect trade
secrets or know-how owned by the Company or to determine
the enforceability, scope and validity of the proprietary rights of
others. Any litigation or interference proceedings will result in
substantial expense to the Company and significant diversion of effort
by the Company's technical and management personnel. An adverse
determination in litigation or interference proceeding to which the
Company may become a party, including any litigation that may arise
against the Company as described in "Potential Litigation" below,
could subject the Company to significant liabilities to third parties
or require the Company to seek licenses from third parties or prevent
the Company from selling its products in certain markets, or at all.
Costs associated with settlements, licensing and similar arrangements,
may be substantial and could include ongoing royalties. Furthermore,
there can be no assurance that the necessary licenses would be
available to the Company on satisfactory terms, if at all. Adverse
determinations in a judicial or administrative proceeding or failure
to obtain necessary licenses could prevent the Company from
manufacturing and selling its products, which would have a material
adverse effect on the Company's business, financial condition and
results of operations.

                                    16


     Congress enacted legislation, which became effective October 1,
1996, that places certain restrictions on the ability of medical
device manufacturers to enforce certain patent claims, relating to
surgical and medical methods, against medical practitioners.  Such
limitations on the enforceability of patent claims, relating to
medical and surgical methods, against medical practitioners could have
a material adverse effect on the Company's ability to protect its
proprietary methods and procedures against medical practitioners.

     In addition to patents, the Company relies on trade secrets and
proprietary know-how, which it seeks to protect, in part, through
confidentiality and proprietary information agreements. There can be
no assurance that such confidentiality or proprietary information
agreements will not be breached, that the Company would have adequate
remedies for any breach, or that the Company's trade secrets will not
otherwise become known to or be independently developed by
competitors.

     Continuing Government Regulation.  Regulatory clearances or
approvals, if granted, may include significant limitations on the
indicated uses for which the Company's products may be marketed. FDA
enforcement policy strictly prohibits the marketing of FDA cleared or
approved medical devices for unapproved uses. In addition, the
Company's manufacturing processes will be required to comply with the
Good Manufacturing Practices ("GMP") regulations of the FDA. These
regulations include design, testing, production, control,
documentation and other requirements. Enforcement of GMP regulations
has increased significantly in the last several years, and the FDA has
publicly stated that compliance will be more strictly scrutinized. The
Company's facilities and manufacturing processes, as well as those of
any future third-party suppliers, will be subject to periodic
inspection by the FDA, the California Department of Health Services
and other agencies. To date, the Company has only undergone inspection
for ISO 9001 certification. Failure to comply with these and other
applicable regulatory requirements could result in, among other
things, warning letters, fines, injunctions, civil penalties, recall
or seizure of products, total or partial suspension of production,
refusal of the government to grant premarket clearance or premarket
approval for devices, withdrawal of clearances or approvals and
criminal prosecution, which could have a material adverse effect on the
Company's business, financial condition and results of operations. 

     Potential Litigation.  Heartport, Inc. (formerly Stanford
Surgical Technologies, Inc.), the former employer of the Company's
founder and Chief Technical Officer, Charles S. Taylor, has alleged in
certain correspondence in late 1995 and again in September 1997 that
Mr. Taylor and the Company may have misappropriated trade secrets of
the former employer and breached confidentiality obligations to the
former employer. The former employer has also claimed in such
correspondence an ownership interest in certain developments and
products of the Company. The Company has agreed to provide for the
defense of Mr. Taylor in the event that litigation is commenced.

                                    17


Litigation is subject to inherent uncertainties, especially in cases
where complex technical issues are decided by a lay jury. Accordingly,
no assurance can be given that if a lawsuit is commenced it would not
be decided against the Company. Such an adverse determination could
have a material adverse effect upon the Company's business, financial
condition and results of operations.

     Potential Component Shortages; Dependence on Sole Sources of
Supply.  The Company contracts with third parties for the manufacture
of certain components or the performance of certain processes involved
in the manufacturing cycle. Some of these components and processes may
only be available from single-source vendors. Any prolonged supply
interruption or yield problems experienced by the Company due to a
single-source vendor could have a material adverse effect on the
Company's ability to manufacture its products until a new source of
supply is qualified. Many of the Company's components are molded parts
that require custom tooling which is manufactured and maintained by
third party vendors.  Should such custom tooling be damaged it could
result in a supply interruption that could have a material adverse
effect on the Company's ability to manufacture its products until a
new tool is manufactured.  Also, the Company's new product development
efforts and the timeliness of new product launches could be
significantly affected by the tooling vendor's ability to meet
completion and quality commitments on the manufacture of custom
tooling.  As the Company increases production, it may from time to
time experience lower than anticipated yields or production
constraints, resulting in delayed product shipments, which could have
a material adverse effect on the Company's business, financial
condition and results of operation.
     
     Limited Manufacturing Experience; Scale-up Risk.  The Company has
no experience manufacturing its products in the volumes that would be
necessary for the Company to achieve profitable operations. There can
be no assurance that reliable, high-volume manufacturing can be
established or maintained at commercially reasonable costs. Companies
often encounter difficulties in scaling up production, including
problems involving production yield, quality control and assurance,
and shortages of qualified personnel. In addition, the Company's
manufacturing facilities will be subject to GMP regulations,
international quality standards and other regulatory requirements.
Difficulties encountered by the Company in manufacturing scale-up or
failure by the Company to implement and maintain its facilities in
accordance with GMP regulations, international quality standards or
other regulatory requirements could entail a delay or termination of
production, which could have a material adverse effect on the
Company's business, financial condition and results of operations.

     Uncertainty Relating to Third-Party Reimbursement.  In the United
States, health care providers, such as hospitals and physicians, that
purchase medical devices, such as the Company's products, generally
rely on third-party payors, principally Medicare, Medicaid and private
health insurance plans, to reimburse all or part of the cost of the
procedure in which the medical device is being used. Reimbursement for
cardiovascular surgery, including CABG surgery, using devices that

                                     18



have received FDA approval has generally been available in the United
States. In addition, certain health care providers are moving toward a
managed care system in which such providers contract to provide
comprehensive health care for a fixed cost per person. The Company is
unable to predict what changes, if any, may be made in the
reimbursement methods utilized by third-party health care payors. The
Company could be adversely affected by changes in reimbursement
policies of government or private health care payors, particularly to
the extent any such changes affect reimbursement for the procedures in
which the Company's products are intended to be used. Failure by
physicians, hospitals and other potential users of the Company's
products to obtain sufficient reimbursement from health care payors
for the procedures in which the Company's products are intended to be
used or adverse changes in government and private third-party payors'
policies toward reimbursement for such procedures could have a
material adverse effect on the Company's business, financial condition
and results of operations.
     
     Market acceptance of the Company's products in international
markets is dependent, in part, upon the availability of reimbursement
within prevailing health care payment systems. Reimbursement and
health care payment systems in international markets vary
significantly by country, and include both government sponsored health
care and private insurance. The Company intends to seek international
reimbursement approvals, although there can be no assurance that any
such approvals will be obtained in a timely manner, if at all, and
failure to receive international reimbursement approvals could have a
material adverse effect on market acceptance of the Company's products
in the international markets in which such approvals are sought.

Product Liability Risk; Limited Insurance Coverage.  The development,
manufacture and sale of medical products entail significant risk of
product liability claims and product recalls. The Company's current
product liability insurance coverage limits are $3,000,000 per
occurrence and $3,000,000 in the aggregate, and there can be no
assurance that such coverage limits are adequate to protect the
Company from any liabilities it might incur in connection with the
development, manufacture and sale of its products. In addition, the
Company may require increased product liability insurance coverage as
product sales increase.  Product liability insurance is expensive and
in the future may not be available to the Company on acceptable terms,
if at all. A successful product liability claim or series of claims
brought against the Company in excess of its insurance coverage, or a
product recall, could have a material adverse effect on the Company's
business, financial condition and results of operations.


                                    19



PART II.  OTHER INFORMATION

     Item 1.  Legal Proceedings

          None

     Item 2.  Changes in Securities and Use of Proceeds

     The following information is provided as an amendment to the
     initial report on Form SR, "Report of Sales and Securities and
     Use of Proceeds Therefrom", regarding the use of proceeds from
     the sale of securities under the Company's Registration Statement
     Form S-1 (333-1840), which was declared effective on April 18,
     1996 (CUSIP number 141907).  The information provided is for the
     period from April 18, 1996 through April 3, 1998.

        Use of Proceeeds                                   Amount
        -----------------                                 ---------
        Construction of plant, building and facilities    $       0
        Purchase and installation of machinery and
         equipment                                        5,245,000
        Purchase of real estate                                   0
        Acquisition of other businesses                           0
        Repayment of indebtedness                                 0
        Working capital                                   2,902,000
        Cost of operation                                24,710,000
     
        Temporary Investment
        --------------------
        Cash                                                913,000
        Commercial paper, notes and bonds               $50,413,000
     
     All amounts above represent estimates of direct or indirect
     payments to third parties.
     
     The amounts below were paid directly to officers of the Company.
     
        Use of Proceeds                                    Amount
        ---------------                                   ---------
        Loans to officers                                $  748,000
     
     Item 3.  Defaults upon Senior Securities
               None

     Item 4.   Submission of Matters to a Vote of Security Holders
               None
          
     Item 5.  Other Information
               None


                                    20                                   



    Item 6.  Exhibits and Reports on Form 8 - K.

          a)   Exhibits

          Exhibit
            No.     Description
          -------   ------------------------------------------

          3.2(1)    Restated Certificate of Incorporation.
          3.3(7)    Bylaws (as ammended).
          3.4(4)    Certificate of Designations of Rights,Preferences
                    and Privileges of Series A Participating Preferred
                    Stock.
          3.5(4)    Preferred Shares Rights Agreement, dated as of
                    February 14, 1997.
          3.6(7)    Certificate of Amendment to Restated Certificate
                    of Incorporation.
          4.1(1)    Specimen Common Stock Certificate.
          10.1(1)   Form of Indemnification Agreement between the
                    Company and each of its directors and officers
          10.2(7)   Incentive Stock Plan and forms of Agreements
                    thereunder (as amended).
          10.3(1)   Director Option Plan and form of Director Stock
                    Option Agreement thereunder.
          10.4(1)   Employee Stock Purchase Plan and forms of
                    agreements thereunder.
          10.5(5)   Nonstatutory Stock Option Plan and form of Non-
                    statutory Stock Option Agreement thereunder (as amended).
          10.6(1)   Form of Employment, Confidential Information and
                    Invention Assignment Agreement.
          10.8(1)   Consulting Agreement, dated June 30, 1995, between
                    the Company and Federico Benetti, M.D.
          10.9(1)   Assignment Agreement, dated June 30, 1995 (as
                    amended by Amendment Agreement dated August 31, 1995)
                    between the Company and Federico Benetti, M.D.
          10.10(1)  Employment Letter Agreement, dated September 5, 1995,
                    between the Company and Charles S. Taylor.
          10.11(1)  Assignment Agreement, dated September 7, 1995, between
                    the Company and Charles S. Taylor.
          10.12(1)  Shareholder Rights Agreement dated September 8,1995
                    (as amended January 3, 1996) between the Company and
                    certain holders of the Registrant's securities.
          10.13(1)  Letter Agreement regarding Heartport trade secret
                    allegations, dated October 11, 1995, between the
                    Company and Charles S. Taylor.
          10.14(1)  Assignment, Assumption of Lease and Consent, dated
                    November 9, 1995, between the Company and Cardio-
                    vascular Concepts, Inc. ("CVC") for the premises
                    located at 3260 Alpine Road, Portola Valley,
                    California 94028.
          10.17(1)  Consent to Assignment, dated December 22, 1995,
                    among the Company, Viking Partners, Inc. ("Viking"),
                    CVC and Fogarty Engineering, Inc. for the premises
                    located at 3260 Alpine Road, Portola Valley,
                    California 94028.

                                      21


          10.19(1)  First Amendment to Assigment, Assumption of Lease
                    and Consent, dated December 22, 1995, between the
                    Company and CVC for the premises located at 3260
                    Alpine Road, Portola Valley, California 94028
          10.21(1)  Consulting Agreement, dated February 21, 1996,
                    between the Company and Thomas J. Fogarty, M.D.
          10.22(1)  Development and License Agreement, dated February
                    19, 1996, between the Company and Enable Medical
                    Corporation.
          10.23(1)  Employment Letter Agreement, dated March 15, 1996, 
                    between the Company and Steve M. Van Dick.
          10.24(1)  Lease dated March 29, 1996, for space located at
                    10600 North Tantau Avenue, Cupertino, California
                    between the Company and Spieker Properties, L.P.
          10.27(2)  Employment Agreement, dated April 19, 1996, between
                    the Company and Steve Van Dick.
          10.28(2)  Promissory Note for $300,000 dated April 29, 1996,
                    between the Company and Thomas Afzal.
          10.29(2)  Promissory Note for $35,000 dated May 20, 1996,
                    between the Company and Michael Billig.
          10.30(2)  Promissory Note for $55,000 dated June 5, 1996,
                    between the Company and Thomas Afzal.
          10.31(3)  Promissory Note for $750,000 and Security
                    Agreement dated August 16, 1996, between the Company
                    and Richard Ferrari.
          10.32(5)  Promissory Note for $200,000 dated December 3, 1996,
                    between the Company and Steve Van Dick.
          10.33(6)  Employment Letter Agreement, dated February 25, 1997,
                    between the Company and Jeffrey Gold.
          10.34(7)  Employment Letter Agreement, dated July 17, 1997,
                    between the Company and Geoffrey Dillon.
          10.35(7)  Employment Letter Agreement, dated November 24,
                    1997, between the Company and Richard Lotti.
             27.1   Financial Data Schedule

- ------------------
     (1)  Incorporated herein by reference to the same-numbered exhibit
          previously filed with the Company's Registration Statement on
          Form S-1 (Registration No. 333-1840).
     (2)  Incorporated herein by reference to the same-numbered exhibit
          previously filed with the Company's Form 10-Q for the period
          ended June 30, 1996.
     (3)  Incorporated herein by reference to the same-numbered exhibit
          previously filed with the Company's Form 10-Q for the period
          ended September 30, 1996.
     (4)  Incorporated herein by reference to the Company's Registration
          Statement on Form 8-A, filed with the Securites and Exchange
          Commission on February 28, 1997.

                                      22



     (5)  Incorporate herein by reference to the same-numbered exhibit
          previously filed with the Company's Form 10-K for the period
          ended December 31, 1996.
     (6)  Incorporated herein by reference to the same-numbered exhibit
          previously filed with the Company's Form 10-Q for the period
          ended July 27, 1997.
     (7)  Incorporate herein by reference to the same-numbered exhibit
          previously filed with the Company's Form 10-K for the period
          ended January 2, 1998.        



          b)  Reports on Form 8 - K
               None





                                      23



                                 SIGNATURES

     Pursuant to the requirements 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.


Date:  May 12, 1998                     CARDIOTHORACIC SYSTEMS, INC.



                                         /S/ Richard M. Ferrari
                                        -----------------------------
                                        Richard M. Ferrari
                                        President and Chief Executive
                                        Officer



                                         /S/ Steve Van Dick
                                        -----------------------------
                                        Steve Van Dick
                                        Vice President, Finance and Chief
                                        Financial Officer (Principal
                                        Financial and Accounting Officer)


                                      24



                                EXHIBIT INDEX
                                        

Exhibit
Number              Exhibit Description
- ----------          -----------------------------------
27.1                Financial Data Schedule



                                     25