ATRIOVENTRICULAR NODAL REENTRANT TACHYCARDIA INITIATED BY CATECHOLAMINE-INDUCED VENTRICULAR-TACHYCARDIA - A CASE-REPORT

被引:3
|
作者
MANN, DE
MARMONT, P
SHULTZ, J
REITER, MJ
机构
[1] Cardiology Division, University of Colorado Health Sciences Center, Denver, CO
关键词
ATRIOVENTRICULAR REENTRANT TACHYCARDIA; CATECHOLAMINE-INDUCED VENTRICULAR TACHYCARDIA; EXERCISE-INDUCED VENTRICULAR TACHYCARDIA; TRIGGERED ACTIVITY;
D O I
10.1016/0022-0736(91)90011-A
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
The authors describe a patient who experienced recurrent wide-complex and narrow-complex tachycardias during exercise. Electrophsiologic testing in the resting state revealed dual atrioventricular (AV) nodal pathways. AV nodal reentrant tachycardia was inducible by ventricular premature stimulation but was always nonsustained, terminating with block in the anterograde slow pathway. During isoproterenol infusion, runs of ventricular tachycardia occurred frequently, and spontaneously initiated sustained AV nodal reentrant tachycardia. Exercise testing also provoked ventricular tachycardia and sustained AV nodal reentrant tachycardia. The patient was effectively treated with a combination of atenolol and verapamil. This case is an unusual example of a catecholamine-induced arrhythmia, possibly due to triggered activity (exercise-induced ventricular tachycardia), initiating an arrhythmia due to reentry (AV nodal reentrant tachycardia).
引用
收藏
页码:191 / 195
页数:5
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