PACE-PACING AND CLINICAL ELECTROPHYSIOLOGY
|
1992年
/
15卷
/
11期
关键词:
INCESSANT VENTRICULAR TACHYCARDIA;
HYPERTROPHIC CARDIOMYOPATHY;
LEFT VENTRICULAR DYSFUNCTION;
D O I:
10.1111/j.1540-8159.1992.tb02948.x
中图分类号:
R5 [内科学];
学科分类号:
1002 ;
100201 ;
摘要:
A 32-year-old black man presented with a history of palpitations since childhood and two syncopal episodes. He was found to have incessant ventricular tachycardia, impaired left ventricular contraction (ejection fraction 9%), and nonobstructive hypertrophic cardiomyopathy. Procainamide abolished the arrhythmia and the ejection fraction rose to 22% in sinus rhythm. Later treatment was switched to amiodarone, which suppressed the ventricular tachycardia but necessitated pacemaker implantation. He has remained well during the subsequent 2 years. Left ventricular ejection fraction has increased to 47% measured in paced rhythm. The improvement in left ventricular function has been attributed to suppression of the incessant ventricular tachycardia.