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Determinants of the spontaneous ectopic activity in repetitive monomorphic idiopathic ventricular tachycardia.

Abstract：

:Twenty-four hour ambulatory electrocardiographic tape recordings of 30 patients (16 men and 14 women, mean age 42 +/- 17 years) with repetitive monomorphic idiopathic ventricular tachycardia were analyzed using a new computerized system designed to study 15 RR cycles and mean heart rate of the 3 minutes preceding any defined event. The mean (+/- SD) number of events analyzed per patient in 24 hours was 610 +/- 483 for single premature ventricular complexes, 622 +/- 490 for couplets, 260 +/- 411 for runs of 3 complexes, 186 +/- 476 for runs of 4, 108 +/- 173 for runs of 5, 82 +/- 129 for runs of 6 to 10 and 83 +/- 116 for runs of more than 10 complexes. The heart rate was faster before runs of ventricular tachycardia than before isolated extrasystoles (p less than 0.01) and a positive linear correlation was observed between the mean preceding heart rate and the type of extrasystolic activity, the length of the runs increasing with increasing preceding heart rate (r = 0.98, p less than 0.001). A long RR interval just before the occurrence of runs was present in 77% of the cases (23 of 30) with or without an oscillatory pattern of RR intervals due to bigeminy or trigeminy, and the length of the runs correlated positively with the duration of this long preceding diastole (r = 0.90, p less than 0.05).(ABSTRACT TRUNCATED AT 250 WORDS)

journal_name

J Am Coll Cardiol

journal_title

Journal of the American College of Cardiology

authors

Zimmermann M,Maisonblanche P,Cauchemez B,Leclercq JF,Coumel P

doi

10.1016/s0735-1097(86)80139-5

subject

Has Abstract

pub_date

1986-06-01 00:00:00

pages

1219-27

issue

6

eissn

0735-1097

issn

1558-3597

pii

S0735-1097(86)80139-5

journal_volume

7

pub_type

杂志文章

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