MAPPING OF ACTIVATION, RECOVERY AND ACTIVATION-RECOVERY INTERVALS IN THE HUMAN HEART

Peroperative epicardial mapping of activation, recovery and activation -recovery intervals in the human heart has been performed in a group o f 12 patients. These patients had the coronary disease but electrocard iograms with normal characteristics. For this mapping, 240 unipolar el ectrograms were simultaneously recorded with the system SATAPEC built in our laboratory. The results confirm the classical data obtained on the dog heart. In particular, it was well established that the duratio n of activation corresponding to activation-recovery intervals is shor ter at the base than at the apex of the posterior surface of the heart . With SATAPEC it is very easy to obtain epicardial mapping of electri cal activity in a few minutes during open heart surgery.