Intra-atrial reentry as a mechanism for atrial flutter induced by acetylcholine and rapid pacing in the dog.

Abstract

In the isolated blood-perfused canine heart we produced episodes of rapid atrial flutter by continuous infusion of acetylcholine and rapid pacing. The spread of excitation during atrial flutter was mapped with the aid of two endocavitary mapping electrodes containing 960 leads and recording from 192 different sites simultaneously. The flutter maps clearly… (More)

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