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Pleomorphic Ventricular Tachycardia: Demonstration of Conduction Reversal Within the Reentry Circuit
Author(s) -
KUCK KARLHEINZ,
SCHLÜTER MICHAEL,
KUNZE KLAUSPETER,
GEIGER MANFRED
Publication year - 1989
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.1989.tb01926.x
Subject(s) - reentry , medicine , cardiology , tachycardia , ventricular tachycardia , left bundle branch block , electrophysiology study , sustained ventricular tachycardia , right bundle branch block , electrophysiology , bundle of his , electrocardiography , electrical conduction system of the heart , heart failure , atrial fibrillation , catheter ablation
A case is presented of a patient with incessant venfricular tacbycardia of left bundle branch block morphology. Endocardial mapping revealed the site of earliest activation during tachycardia to be the proximal right ventricular septum. Pacing at this site elicited the clinical tachycardia, whereas pacing at the proximal left ventricular septum induced a right bundle branch block morphology identical to that of a previously recorded spontaneous ventricuiar tachycardia. Electrophysiological evidence is given that both types of tachycardia originate from a single reentry circuit located in the proximal ventricular septum in which the reentrant wavefront may travel either orthodromically (during spontaneous tachycardia and right ventricular pacing) or antidromically (during left ventricular pacing).