All issues > Volume 30(12); 1987

Original Article

J Korean Pediatr Soc. 1987;30(12):1355-1362. Published online December 31, 1987.

Percutaneous Balloon Angioplasty in Children with Pulmonary Valvular Stenosis.

Yong Soo Yun¹, Chang Yee Hong¹

¹Department of Pediatrics, College of Medicine, Seoul National University, Seoul, Korea

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.

Keywords :Pulmonary stenosis; Balloon valvuloplasty