| Percutaneous Balloon Angioplasty in Children with Pulmonary Valvular Stenosis. |
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Yong Soo Yun, Chang Yee Hong |
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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 |
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尹 龍 洙, 洪 影 義 |
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서울大學校 醫科大學 小兒科學敎室 |
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| Abstract |
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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.
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| Key Words:
Pulmonary stenosis, Balloon valvuloplasty
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