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Ann Thorac Surg 2009;88:1341-1343. doi:10.1016/j.athoracsur.2009.02.057
© 2009 The Society of Thoracic Surgeons
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Shun-ichiro Sakamoto
Yuji Maruyama
Masami Ochi
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Case Reports

Two-Patch Repair for Atrioventricular Septal Defect With Mitral Aneurysm

Hajime Imura, MD*, Shun-ichiro Sakamoto, MD, Yuji Maruyama, MD, Masami Ochi, MD, Kazuo Shimizu, MD

Department of Surgery, Division of Cardiovascular Surgery, Nippon Medical School, Bunkyo-ku, Tokyo, Japan

Accepted for publication February 13, 2009.

* Address correspondence to Dr Imura, 1-1-5, Sendagi Bunkyo-ku, Tokyo, 113-8603, Japan (Email: himura{at}nms.ac.jp).

We experienced an unusual case of partial atrioventricular septal defect in an elderly patient. A preoperative ultrasonic cardiogram revealed the mitral leaflet pouching toward the right atrium and suggested the presence of a ventricular septal defect underneath the atrioventricular valve. The mitral aneurysm was diagnosed as a septal aneurysm on preoperative ultrasonic cardiogram. A crescent-shaped Dacron patch (InterVascular S. A., La Ciotat Cedex, France) was placed beneath the atrioventricular valve to prevent rupture of the mitral aneurysm and support the anterior mitral leaflet by creating a new annulus. We believe that this is the first report describing this type of mitral aneurysm and its surgical repair.






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