Mind the gap

We present a case of a woman with an asymptomatic intermittent 2:1 atrioventricular block. The baseline ECG showed a wide QRS with right bundle branch block pattern. Measurement of the HV interval during electrophysiological study was normal. During electrophysiological stimulation, a unique pattern...

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Bibliographic Details
Published inJournal of electrocardiology Vol. 50; no. 4; p. 520
Main Authors Danon, Asaf, Elitzur, Yair, Singh, Sheldon M
Format Journal Article
LanguageEnglish
Published United States 01.07.2017
Subjects
Aged
Atrioventricular Block - physiopathology
Bundle-Branch Block - physiopathology
Electrocardiography
Female
Heart Conduction System - physiopathology
Humans
Gap phenomenon
Phase 4 block
Supranormal conduction
Infrahisian block
Atrioventricular block
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Summary:We present a case of a woman with an asymptomatic intermittent 2:1 atrioventricular block. The baseline ECG showed a wide QRS with right bundle branch block pattern. Measurement of the HV interval during electrophysiological study was normal. During electrophysiological stimulation, a unique pattern of paradoxical conduction was seen. We discuss the mechanism of the paradoxical conduction.
ISSN:1532-8430