UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    FORM 8-K

                                 CURRENT REPORT


     Pursuant to Section 13 or 15 (d) of the Securities Exchange Act of 1934


         Date of Report (Date of earliest event reported) April 22, 2004


                    CardioDynamics International Corporation
             (Exact name of registrant as specified in its charter)


California                          0-11868                     95-3533362
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(State or other jurisdiction       (Commission               (I.R.S. Employer
of incorporation)                  File Number)              Identification No.)


6175 Nancy Ridge Drive, San Diego, California                      92121
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(Address of principal executive offices)                          (Zip Code)


Registrant's telephone number, including area code: (858) 535-0202
                                                    --------------


                                       n/a
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          (Former name or former address, if changed since last report)






Item 5.  Other Events:

      Exhibit filed with this report:

          Exhibit 99. Registrant's press release dated April 22, 2004 announcing
its co-sponsorship of Inaugural International Acute Heart Failure Meeting.

                                    SIGNATURE

     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 hereunto duly authorized.


                                                CARDIODYNAMICS
                                                INTERNATIONAL CORPORATION

Date:  April 22, 2004                           By: /s/ Stephen P. Loomis
                                                   --------------------------
                                                Stephen P. Loomis
                                                Chief Financial Officer