Discrete Subaortic Stenosis after Repair of Endocardial Cushion Defect.
10.4326/jjcvs.25.181
- VernacularTitle:心内膜床欠損症根治術後大動脈弁下狭窄の１例
- Author:
Kazuo Yamanaka
;
Fumitaka Ando
;
Fumio Okamoto
;
Shigehiro Otani
;
Katushi Oda
;
Nozomu Sasahashi
;
Kou Sogabe
;
Tomoki Hanada
- Publication Type:Journal Article
- From:Japanese Journal of Cardiovascular Surgery
1996;25(3):181-184
- CountryJapan
- Language:Japanese
-
Abstract:
A 6-year-old girl who had undergone repair of an endocardial cushion defect 4.5 years previously, developed discrete subaortic stenosis requiring surgical intervention. On two-dimensional echocardiography a membrane was visualized below the aortic valve. A pressure gradient of 97mmHg was recorded across the left ventricular outflow tract by cardiac catheterization. Operative findings showed a fibrous ring tissue just below the aortic valve, which was peeled away by sharp dissection. Postoperative cardiac catheterization revealed a 25mmHg pressure gradient across the left ventricular outflow tract. Two years later, she continues to do well and the pressure gradient remains unchanged on Doppler echocardiography.
