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Predictors of inducible sustained ventricular tachyarrhythmias in patients with coronary artery disease.

Abstract：

:To determine predictors of inducible sustained ventricular tachycardia or fibrillation by programmed electrical stimulation in patients with coronary artery disease and ventricular tachyarrhythmias, 14 clinical and angiographic variables were analyzed in 60 consecutive patients. All patients had angiographically documented coronary artery disease and symptomatic ventricular arrhythmias (sustained ventricular tachycardia in 21, ventricular fibrillation in 21 and nonsustained ventricular tachycardia in 18). Baseline programmed electrical stimulation while the patient was not taking antiarrhythmic drugs was performed with use of single, double and triple extrastimuli and burst pacing from two right ventricular sites. The variables analyzed were presenting arrhythmia; presence, frequency and complexity of ventricular ectopic activity on baseline 24 h electrocardiographic (Holter) monitoring; greater than or equal to 70% narrowing in either the left anterior descending, proximal left anterior descending, right coronary or circumflex coronary artery (independently assessed); single, double or triple vessel coronary disease; anterior, apical or inferior wall motion abnormalities; segmental dyskinesia and ejection fraction. Thirty-seven patients (62%) had inducible sustained ventricular tachycardia (rate greater than 100 beats/min, duration greater than 30 s or requiring cardioversion) and two patients (3%) had ventricular fibrillation induced. Eleven patients (18%) had nonsustained ventricular tachycardia (duration greater than or equal to 3 beats, less than 30 s) induced and 10 patients (17%) had no inducible arrhythmia (duration less than 3 beats). Multivariate stepwise logistic regression analysis identified three independent variables predictive of inducible sustained ventricular arrhythmias: sustained ventricular tachycardia as the presenting arrhythmia (p = 0.004), proximal left anterior descending artery lesion (p = 0.002) and anterior wall motion abnormality (p = 0.005).(ABSTRACT TRUNCATED AT 250 WORDS)

journal_name

J Am Coll Cardiol

journal_title

Journal of the American College of Cardiology

authors

Vorperian VR,Gittelsohn AM,Veltri EP

doi

10.1016/0735-1097(89)90605-0

subject

Has Abstract

pub_date

1989-03-01 00:00:00

pages

637-45

issue

3

eissn

0735-1097

issn

1558-3597

pii

0735-1097(89)90605-0

journal_volume

13

pub_type

杂志文章

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