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英文誌(2004-)

Journal of Medical Ultrasonics

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1990 - Vol.17

Vol.17 No.06

Case Report(症例報告)

(0703 - 0709)

僧帽弁straddlingを伴う完全大血管転換症の2症例−Jatene手術前後の断層及びドプラ心エコー図所見−

Two Cases of Complete Transposition of the Great Arteries with Straddling Mitral Valve -Two-Dimensional and Doppler Echocardiographic Findings before and after Jatene's Operation-

森 一博1, 土肥 嗣明1, 鎌田 政博1, 山本 裕子2, 上田 稔3

Kazuhiro MORI1, Tsuguaki DOHI1, Masahiro KAMADA1, Hiroko YAMAMOTO2, Minoru UEDA3

1岡山大学医学部小児科, 2水島三菱病院, 3心臓病センター榊原病院

1The Department of Pediatrics, Okayama University School of Medicine, 2Mizushima Mitsubishi Hospital, 3Center for Cardiovascualar Disease, Sakakibara Hospital

キーワード : Jatene's operation, Straddling mitral valve, Cleft, Complete transposition of the great arteries

We present here our echocardiographic findings of two cases of complete transposition of the great arteries with straddling mitral valve before and after Jatene's operation.
The mitral valve had three leaflets with cleft, and the chordae of the anterior leaflet were attached to the anterior part of the right side of the ventricular septum in both cases.
After Jatene's operation, the patch of ventricular septal defect was deviated to the right ventricle wihout disturbing the movement of the mitral valve. Mitral regurgitation was detected in both cases, and one case with a ventricular septal defect of posterior extension showed tricuspid regurgitation by Doppler echocardiography. Left ventricular outflow tract obstruction caused by a straddling mitral valve was not observed.
Echocardiography is useful for evaluating this anomaly before and after Jatene's operation. Careful follow up is important to check for postoperative regurgitation of the atrioventricular valves.