EFFECT OF VERAPAMIL ON AN ACCESSORY PATHWAY MANIFESTING AS FATIGUE PHENOMENON IN WOLFF-PARKINSON-WHITE SYNDROME

被引：4
|
作者：
FUJIMURA, O [1 ]
SMITH, BA [1 ]
KUO, CS [1 ]
机构：
[1] UNIV KENTUCKY,MED CTR,DEPT MED,DIV CARDIOL,ARRHYTHMIA SERV,LEXINGTON,KY 40506
来源：
CHEST | 1993年 / 104卷 / 01期
关键词：
D O I：
10.1378/chest.104.1.305
中图分类号：
R4 [临床医学];
学科分类号：
1002 ; 100602 ;
摘要：
Electrophysiologic study was performed in a 52-year-old man with type A ventricular preexcitation. An accessory atrioventricular pathway with no ventriculoatrial conduction was localized to the posteroseptal region. ''Fatigue phenomenon,'' defined as suppression of atrioventricular conduction following rapid pacing, was observed to be provoked by atrial pacing in a rate- and duration-dependent manner. Administration of 5 mg of intravenous verapamil during sinus rhythm abolished the delta waves. These observations may indicate that pathologic changes in the accessory pathway are responsible for these phenomena.
引用
收藏
页码：305 / 307
页数：3
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