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Ventricular Wenckebach after intravenous therapy with class I antiarrhythmic agents
C P Lau1, M J Griffith, A J Camm
1Department of Cardiological Sciences, St. George's Hospital Medical School, London, U.K.
International Journal of Cardiology
|July 1, 1988
Abstract:
Two unusual cases of Wenckebach-like conduction block in the infranodal tissues which developed after an intravenous dose of a Class I antiarrhythmic drug are presented. The first case shows infra-Hisian Wenckebach during sustained atrioventricular nodal reentrant tachycardia. The second case demonstrates rate-dependent Wenckebach-like exit block between the pacing catheter and the right ventricular tissues during pacing.