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A Case of Supravalvular Stenotic Ring of the Left Atrium associated with VSD and PDA.

Journal of the Korean Pediatric Society 1984;27(2):184-190.
Published online February 28, 1984.
A Case of Supravalvular Stenotic Ring of the Left Atrium associated with VSD and PDA.
Chung Il Noh1, Jung Yun Choi1, Yong Soo Yoon1, Chang Yee Hong1, Kyung Mo Yeon2, Joon Ryang Rho3
1Department of Pediatrics,College of Medicine, Seoul National University
2Department of Radiology, College of Medicine, Seoul National University
3Dept, of Chest Surgery, College of Medicine, Seoul National University
僧帽辯上部輪에 同伴된 心室中隔缺損 및 動脈管開存 1例
魯貞鎰1, 崔正街1, 尹龍洙1, 洪影義1, 延敬模2, 盧後完3
1서울大學校 醫科大學 小兒科學敎室
2서울大學校 醫科大學 放射線科學敎室
3서울大學校 醫科大學 胸部外科學敎室
Abstract
Supravalvular stenotic ring of the left atrium is one of the rare anomalies, which is usually accompanied by other cardiac defects. It is very important to recognize its existence earlier and preoperatively. Main tools in. diagnosis are angiocardiography and echocardiography. We have experienced a patient with supravalvular stenotic ring of the left atrium with coexisted with VSD and PDA. M-mode echocardiographic findings are decreased EF slope, diastolic anterior motion of posterior mitral valve and abnormal echo between anterior and. posterior mitral valve leaflets. Supravalvular mitral ring is not visualized by 2D echo. Failure to demonstrate the ring is probably due to close attachment of ring to mitral valve and poor resolution of low frequency transducer. At operation, VSD was closed with patch and PDA was ligated. Supravalvular mitral ring was very closely attached to the anterior leaflet of mitral valve and posterior mitral annulue and was completely resected.
Key Words: Supravalvular, stenotic ring, left atrium


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