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Percutaneous Balloon Angioplasty in Children with Pulmonary Valvular Stenosis.

Journal of the Korean Pediatric Society 1987;30(12):1355-1362.
Published online December 31, 1987.
Percutaneous Balloon Angioplasty in Children with Pulmonary Valvular Stenosis.
Yong Soo Yun, Chang Yee Hong
Department of Pediatrics, College of Medicine, Seoul National University, Seoul, Korea
肺動脈辨 滅華의 經皮的 풍선 成形術
尹 龍 洙, 洪 影 義
서울大學校 醫科大學 小兒科學敎室
Abstract
Pulmonary valve stenosis was relieved by balloon dilatation during cardiac catheterization on 58 children aged 8 months to 15 years, mean 6.2 years. Pulmonary valve diameter was estimated by two-dimensional echocardiogrphy to assist in the choice of balloon size. Before dilatation the transpulmonary systolic pressure gradients ranged from 15 mmHg to 250 mmHg. There were significant reduction in the transpulmonary systolic pressure gradients immediately after balloon dilatation except one patient in which dysplasia of the pulmonar- y valve was confirmed during the surgical valvotomy. There were good correlation (R = 0.88) between catheterization measured and Doppler predicted transpulmonary systolic pressure gradients in 51 patients with pulmonary stenosis. Balloon pulmonary valvotomy appears to provide good relief of pulmonary valve stenosis and may obviate the need for surgery in many cases.
Key Words: Pulmonary stenosis, Balloon valvuloplasty


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