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Case Reports
. 1999 Jan;32(1):73-6.
doi: 10.1016/s0022-0736(99)90024-9.

Left ventricular end-diastolic extrasystole with pseudonormalization of a left bundle branch block unmasking inferior ischemia

M A Arnau Vives  1 , L A Bonet, L A Lalaguna, P M Blasco, L M Dolz, A O Sáez, M P Pérez
Affiliations
Case Reports

Left ventricular end-diastolic extrasystole with pseudonormalization of a left bundle branch block unmasking inferior ischemia

M A Arnau Vives et al. J Electrocardiol. 1999 Jan.

Abstract

An electrocardiogram tracing of a patient in conducted sinus rhythm with left bundle branch block is shown, in which occasional pseudonormalization of intraventricular conduction is seen. This event is attributed to ventricular fusions with end-diastolic extrasystoles of the left His-Purkinje system distal to the block site. This type of extrasystole is discussed. In this case, normalization of ventricular activation allowed for diagnosis of inferior subepicardial ischemia.

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