PROGNOSIS OF PATIENTS WITH SUSTAINED VENTRICULAR-TACHYCARDIA AND OF SURVIVORS OF CARDIAC-ARREST NOT INDUCIBLE BY PROGRAMMED STIMULATION

被引:4
作者
ANDRESEN, D [1 ]
STEINBECK, G [1 ]
BRUGGEMANN, T [1 ]
HABERL, R [1 ]
FINK, L [1 ]
SCHRODER, R [1 ]
机构
[1] UNIV MUNICH,KLINIKUM GROSSHADERN,MED KLIN 1,W-8000 MUNICH 70,GERMANY
关键词
D O I
10.1016/0002-9149(92)90757-P
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
The alm of this study was to analyze the long-term clinical outcome of 60 prospectively studied patients with documented sustained ventricular tachyarrhythmia that was not inducible during baseline programmed ventricular stimulation: 39 with cardiac arrest due to noninfarction ventricular fibrillation (VF) and 21 with mild hemodynamically compromising sustained ventricular tachycardia (VT). Left ventricular ejection fraction was SS +/- 14% in the VF group and SO +/- 13% in the VT group (difference not significant). Patients were discharged without conventional antiarrhythmic drugs and received only empirical beta-blocker therapy. During a mean follow-up period of 21 +/- 16 months (mean +/- SD), 10 of 60 patients (17%) died suddenly. The actuarial incidence of sudden death at 1 and 4 years was similar in both groups (VF group, 10 and 20%; VT group, 16 and 16%) (p = 0.48). The actuarial incidence of sudden cardiac death was significantly higher in patients with left ventricular election fraction less-than-or-equal-to 40% than in those with >40% (1-year incidence in VF group, 40 vs 0%; VT group, SO vs 0%) (p = 0.005 and p = 0.01, respectively). Multivariate regression analysis identified left ventricular ejection fraction less-than-or-equal-to 40% and previous myocardial infarction as the only independent predictor of sudden cardiac death. The occurrence of frequent ventricular pairs during Holter monitoring was the only independent predictor of sustained VT recurrences. It is concluded that patients with sustained ventricular tachyarrhythmia in whom arrhythmia was noninducible during baseline ventricular stimulation and not treated with antiarrhythmic therapy have a favorable outcome if left ventricular ejection fraction is high. However, reduced left ventricular ejection fraction identifies a subgroup at high risk of sudden cardiac death. Patients with mild hemodynamically compromising sustained VT have a similar risk of dying suddenly as those resuscitated earlier from cardiac arrest.
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页码:1250 / 1254
页数:5
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