EXHIBIT 23.1

              CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

We consent to the reference to our firm under the caption "Experts" in the
Registration Statement (Form S-3) and related Prospectus of Cardima, Inc. for
the registration of 6,066,611 shares of its common stock and to the
incorporation by reference therein of our report dated February 2, 2000,
except for note 7, as to which date is February 18, 2000, with respect to the
financial statements of Cardima, Inc. included in its Annual Report (Form 10-
K) for the year ended December 31, 1999, filed with the Securities and
Exchange Commission.



                                                      /s/ Ernst & Young LLP

Palo Alto, California
April 27, 2000