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                                                                   EXHIBIT 10.29



August 7, 1996

                                                  REVISED OFFER LETTER
                                                  VIA FEDERAL EXPRESS

DEBRA SHERYL ECHT, M.D.
1477 Georgetown Court
Nashville, TN 37215

Dear Debra:

This letter, when signed by you, will constitute an agreement between Cardiac
Pathways Corporation (the "Company") and you (the "Executive") concerning your
employment.

1.      The Company hereby hires the Executive and the Executive hereby accepts
        employment as Vice President Chief Medical Officer.

        a.     The Executive will work full time at Cardiac Pathways Corporation
               beginning September 3, 1996.

        b.     Primary responsibility for this position will include management
               of the Company's clinical trials and preclinical trials,
               assistance in the areas of advanced research, product planning,
               strategic planning and business development. Other
               responsibilities for this position will also include interactions
               with the Company's institutional investors, analysts and
               investment bankers concerning clinical matters.

2.      The Company agrees to pay the Executive an annual base salary of
        $200,000.00 payable in accordance with the Company's standard payroll
        policy. In addition, the Company agrees to pay the Executive a bonus as
        follows:

        a.     $50,000 upon PMA approval by the U.S. FDA of the Company's Cooled
               Ablation Catheter and Mapping System for Ventricular Tachycardia.

        b.     $50,000 upon PMA approval by the U.S. FDA of the Company's Linear
               Lesion Catheter for Atrial Fibrillation.

3.      The Company will also pay the following expenses, to help move the
        Executive to the Bay Area:

        a.     All expenses incurred in moving the Executive's personal
               belongings from the Nashville, Tennessee area to the San
               Francisco Bay Area.

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DEBRA SHERYL ECHT, M.D.
August 7,1996
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        b.     Real estate commissions paid by the Executive to the Executive's
               real estate broker in connection with the sale of the Executive's
               home in Nashville, Tennessee.

        c.     Closing costs on the purchase of a residential dwelling in the
               San Francisco Bay Area during the Employee's tenure at the
               Company.

4.      After the Executive has purchased a home in the San Francisco Bay Area,
        the Company will provide the Executive an optional loan program of
        $1,000 per month for a maximum period of sixty (60) months. This loan
        will be due on the earlier of (i) seven (7) years from the date of the
        first monthly loan, or (ii) three (3) months after the termination of
        the Executive's employment with the Company. The loan will bear interest
        at the applicable Federal rate as defined in the Internal Revenue Code
        of 1986 and the regulations thereunder, and be secured by a trust deed
        on the Employee's new residence.

5.      The Executive's employment with the Company will be at-will and may be
        terminated by the Executive or the Company at any time.

6.      The Executive will be eligible to participate in any insurance or other
        benefit plan as may be sponsored or maintained by the Company from time
        to time for its employees. Cardiac Pathways currently offers medical,
        dental, vision, life and long-term disability insurance, a 401k,
        flexible benefits and an Employee stock purchase plan.

7.      The Company will issue to the Executive an option exercisable for
        100,000 shares of Common Stock at $6.25 per share. The grant of this
        option is subject to the Board of Director's approval. The stock option
        will vest over a four year period with 12/48ths of the shares vesting on
        the Executive's one year anniversary date with the Company and an
        additional 1/48th of the total number of shares vesting at the end of
        each full month thereafter.

        The stock option shall be represented by the Company's standard form of
        stock option agreement. The vesting schedule for the stock option will
        be further modified by the terms outlined in Sections 8 and 9.

8.      a.     The term of this Agreement shall commence on your first day of
               employment and shall continue until terminated by either party in
               accordance with the provisions of this Section 8.


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DEBRA SHERYL ECHT, M.D.
August 7, 1996
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        b.     This Agreement may be terminated by the Company at any time for
               Justifiable Cause (as hereinunder defined) provided that the
               Company shall pay the Executive an amount equal to the sum of his
               then current base salary as a severance payment for one month
               following the date of termination. For the purpose of this
               Agreement., the term "Justifiable Cause" shall include the
               occurrence of any of the following events: (i) the Executive's
               conviction for, or plea of nolo contendere, a felony or a crime
               involving moral turpitude, (ii) the Executive's commission of an
               act of personal dishonesty or breach of fiduciary duty involving
               personal profit in connection with the Company, (iii) the
               Executive's commission of an act, or failure to act, which the
               Executive's supervisor at the Company shall reasonably have found
               to have involved misconduct or gross negligence on the part of
               the Executive, in the conduct of his duties hereunder, (iv)
               habitual absenteeism, alcoholism or drug dependency on the part
               of the Executive which interfere with the performance of his
               duties hereunder, (v) the Executive's willful and material breach
               or refusal to perform his services as provided herein, (vi) any
               other material breach of this Agreement or (vii) the willful and
               material failure or refusal to carry out a direct request of the
               Executive's supervisor. The payment to the Executive of the
               severance payment described in this Section 8(b) will discharge
               all of the Company's obligations to the Executive.

        c.     This Agreement may be terminated by the Company at any time
               without Justifiable Cause provided that the Company shall pay the
               Executive an amount equal to the sum of his then current monthly
               base pay as a severance payment for a period of six months
               following the date of termination, or until the Executive finds
               other employment, whichever is shorter. Any payments made
               pursuant to this Section 8(c) shall be reduced to the extent the
               Executive received any other earnings related to employment or
               consulting services or other unemployment or disability
               compensation during the six month period. The payment of the
               Executive of the severance payment described in this Section 8(c)
               will discharge all of the Company's obligations (subject to the
               provisions noted in Section 9) to the Executive.

        d.     This Agreement maybe terminated by the Executive at any time upon
               30 days written notice, in which case the Company shall have no
               severance or other obligations to the Executive.

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DEBRA SHERYL ECHT, M.D.
August 7,1996
Page Four


9.      Notwithstanding anything set forth in this Section 9, upon the
        Executive's involuntary termination of employment from the Company (for
        any reason other than for Justifiable Cause) on or after an Acquisition
        (as defined below), the 100,000 shares of Common Stock described in
        Section 7 above shall be fully and immediately exercisable. For purposes
        of this Section 9, an Acquisition shall be defined as a merger,
        reorganization, or sale of all or substantially all of the assets of the
        Company in which shareholders of the Company immediately prior to the
        transaction possess less than fifty percent (50%) of the voting power of
        the surviving entity (or its parent) immediately after the transaction.
        The resignation of the Executive after a Constructive Termination (as
        defined below) shall be treated as an involuntary termination of
        employment under this Section 6. For purposes of this Section 9, a
        Constructive termination shall mean a material reduction in salary or
        benefits, a material change in responsibilities, or a requirement to
        relocate, except for office relocations that would not increase the
        Executive's one-way commute distance by more than thirty-five (35)
        miles.

10.     As a condition of the Executive's employment, the Executive will also be
        required to execute the Company's standard Proprietary Information
        Agreement, a copy of which is enclosed with this letter.

If you are in agreement with this proposal, please execute a copy of this letter
and the Proprietary Information Agreement and return them to me as soon as
possible.

Best personal regards,

CARDIAC PATHWAYS CORPORATION                 Acknowledged and Accepted


By: /s/ AURORA C. SALGADO                    /s/ DEBRA SHERYL ECHT, M.D.
   --------------------------------          -----------------------------------
   FOR: William.  N. Starling                Debra Sheryl Echt, M.D.
   President and CEO

Enclosure as stated above.