Prognosis in Patients with Left Ventricular Dysfunction and Ventricular Tachycardia Following Programmed Ventricular Stimulation
作者:
GREG C. FLAKER,
RYSZARD B. KROL,
A. ERSIN ATAY,
WILLIAM MUSICK,
MARTIN A. ALPERT,
SHARON ANDERSON,
期刊:
Journal of Cardiovascular Electrophysiology
(WILEY Available online 1991)
卷期:
Volume 2,
issue 1
页码: 23-29
ISSN:1045-3873
年代: 1991
DOI:10.1111/j.1540-8167.1991.tb01709.x
出版商: Blackwell Publishing Ltd
关键词: programmed ventricular stimulation
数据来源: WILEY
摘要:
We performed programmed ventricular stimulation on 69 patients with left ventricular ejection dysfunction (ejection fraction6 beats ventricular tachycardia) was found in 74% of patients. Patients with clinically sustained arrhythmias were frequently inducible (89%) with a high incidence of inducible monomorphic ventricular tachycardia (82%). Patients with clinically nonsustained ventricular tachycardia had a lower rate of inducibility (63%) including a high incidence of inducible polymorphic ventricular tachycardia (27%). Inducible patients with left ventricular dysfunction and ventricular tachycardia had a low incidence of electrophysiologically demonstrated effective drug therapy (16%). However, if an effective drug was found, the prognosis was good. Empirical drug therapy was associated with a poor prognosis in inducible and noninducible patients. Finally, an unfavorable prognosis was associated with a clinically sustained arrhythmia, a lower ejection fraction, and the presence of a left ventricular aneurysm. An inducible arrhythmia did not predict an unfavorable course. Indeed, patients with noninducible ventricular tachycardia in this group of patients were still at risk for sudden cardiac death.
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