His-bundle parasystole masquerading as exercise-induced 2:1 atrioventricular block.

Abstract:

:We describe a case of symptomatic pseudo-AV block due to His-bundle parasystole masquerading as exercise-induced 2:1 AV block. Electrophysiologic study revealed the presence of His-bundle parasystole, and the fluctuation of parasystolic cycle length could be explained by the concept of modulated parasystole. Modulated parasystole is a possible explanation for maintenance of stable 2:1 AV conduction at an atrial rate of specific range during exercise.

authors

Kasaoka Y,Ajiki K,Hayami N,Murakawa Y

doi

10.1046/j.1540-8167.2001.00965.x

keywords:

subject

Has Abstract

pub_date

2001-08-01 00:00:00

pages

965-7

issue

8

eissn

1045-3873

issn

1540-8167

journal_volume

12

pub_type

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