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Echocardiographic Evaluation of the Natural Processes in Uncomplicated Ventricular Septal Defect

Published online September 15, 1994.
Echocardiographic Evaluation of the Natural Processes in Uncomplicated Ventricular Septal Defect
Hyang Suk Yoon, Du Young Choi
Department of Pediatrics, School of Medicine, Wonkwang University, Iri, Korea
심실중격결손의 자연 경과에 대한 심초음파적 관찰
윤향석, 최두영
원광대학교 의과대학 소아과학교실
Abstract
We studied, with echocardiography as a main tool, the natural processes of 211 patients with uncomplicated ventricular septal defect(VSD)(incidence, 5.33 per 1,000 live births); 146(69.2%) had a perimembranous VSD and 32 (15.2%) had a subarterial, 25(11.8%) had a muscular type of VSD. Cumulative rate of spontaneous closure was 26.1%. In the closure processes, about three-fourth of perimembranous VSd showed a partial closure or tunnel formation by changes of septal leaflet of the tricuspid valve, remaining one-fourth showed a "functional" complete closure. Four of 58 nenonates had a partially closed-perimembranous VSD. Rates of infundibular stenosis and Eisenmenger sysndrome were 6.6% and 1.4% respectively. Aortic prolapse with insufficiency was detected in 6 patients who were over 6 years of age. Surgical closure was required in 27.5% of all studied patients and in 12% of infants(14 of 117). No natural deaths were observed during the study-periods of recent 3 years. But, 3 of 58(5.2%) were dead postoperatively (two were early, one late). Doppler color flow mapping is a valuable aid in the diagnosis of VSD and may be one reason for the observed increase in the incidence of VSDs.
Key Words: one late). Doppler color flow mapping is a valuable aid in the diagnosis of VSD and may be one reason for the observed increase in the incidence of VSDs."


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