一名患有罕见型房室结折返性心动过速且房室结传导增强的患者出现间歇性束支传导阻滞。

Intermittent bundle branch blocks in a patient with uncommon-type atrioventricular nodal reentrant tachycardia and enhanced atrioventricular nodal conduction.

作者信息

Hirao K, Yano K, Horikawa T, Suzuki K, Kawabata M, Motokawa K, Suzuki F, Kawara T, Hiejima K

机构信息

First Department of Internal Medicine, School of Medicine, Tokyo Medical and Dental University, Japan.

出版信息

J Electrocardiol. 1999 Jan;32(1):65-71. doi: 10.1016/s0022-0736(99)90023-7.

DOI:10.1016/s0022-0736(99)90023-7

PMID:10037091

Abstract

We report on a patient with uncommon-type atrioventricular (AV) nodal reentrant tachycardia with a short tachycardia cycle length (235-270 ms), in whom transient wide QRS tachycardia with both left bundle branch block and right bundle branch block aberrancy were followed by narrow QRS complexes. In addition, His-ventricular (H-V) block and a sudden prolongation of the H-V interval occurred during the tachycardia. As the determinant of these unusual findings, the possibility that the anterograde limb of the reentry circuit has an enhanced AV nodal conduction property is discussed, as is the clinical significance of this type of tachycardia.

摘要

我们报告了一例患有罕见类型房室结折返性心动过速的患者，其心动过速周期较短（235 - 270毫秒），该患者先出现伴有左束支传导阻滞和右束支传导阻滞差异传导的短暂宽QRS波心动过速，随后出现窄QRS波群。此外，在心动过速期间发生了希氏束 - 心室（H - V）阻滞以及H - V间期突然延长。作为这些异常表现的决定因素，我们讨论了折返环路的前传支具有增强的房室结传导特性的可能性，以及这种类型心动过速的临床意义。