| Clinical Characteristics of Ventricular Tachycardia on 24 hour ECG in Children. |
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Ki Soo Kim, Young Hwue Kim, Chung Il Noh, Jung Yun Choi, Yong Soo Yoon, Chang Yee Hong |
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Department of Pediatrics, College of Medicine, Seoul National University, Seoul, Korea |
| 소아의 24시간 심전도에서의 심실빈맥의 성격 |
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김기수, 김영휘, 노정일, 최정연, 윤용수, 홍창의 |
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서울대학교 의과대학 소아과학교실 |
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Received: 28 November 1988 • Accepted: 12 December 1988 |
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| Abstract |
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Ventricular tachycardia (VT) is uncommon, but is in increasing tendency probably due to better
case detection and longer survival of the patients with complex congenital heart disease. Widespread
use of 24 hour ECG has contributed a lot to better understanding of ventricular tachycardia.
Fourteen cases of ventricular tachycardia diagnosed by 24 hour ECG at Seoul National Children’
s Hospital from Feb. 1986 to Sep. 1987 were analysed to find out characteristics of ventricular
tachycardia in the childhood. During the study period, a total of 217 patients underwent 24 hour ECG,
so that the incidence of ventricular tachycardia was 6.5%. Ages ranged from 2 months to 14 years
with mean of 8 years and male to female ratio was 2.5:1 . The QRS morphology were LBBB type in
6, RBBB type in 4, multiform in 2, and indeterminate type in 2 patients. In 11 cases heart diseases were
associated (congenital heart disease in 8 and cardiomyopathy in 3 cases) and in 3 cases, there were no
structural heart diseases detected.
The rate of ventricular tachycardia was not related to the preceding sinus rate. In each case, the
prematurity index was greater than 1.0 and the vulnerability index was less than 1.1.-So there was no
correlation between the mode of initiation of ventricular tachycardia and the prematurity index, and
the vulnerability index. |
| Key Words:
Ventricular Tachycardia, 24 hour ECG |
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