Clinical Electrophysiology of Ventricular Tachycardia

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Abstract
DURING the past decade, the study of cardiac arrhythmias has been greatly assisted by the development and refinement of two techniques: intra-cardiac recording, whereby electrical activity can be measured at different sites within the heart, and programmed stimulation, which provides the means to study conduction and refractoriness and to initiate and terminate reentrant circuits — the substrate for most atrial and ventricular tachycardias. For the first five years of the decade, these methods were applied particularly to the study of atrioventricular block. A review of this subject published in the Journal in 1975 was prepared just as clinical electrophysiologists were . . .