The Japanese Journal of Thoracic Surgery Volume 71, Issue 13 (December 2018)

Congenital Unicuspid Aortic Valve Diagnosed by Intraoperative Findings Yasuyuki Sasaki 1 , Masanori Sakaguchi 1 , Yasuyuki Bito 1 , Yasuo Suehiro 1 , Kenta Nishiya 1 , Goki Inno 1 , Atsutaka Aratame 1 1Department of Cardiovascular Surgery, Osaka City General Hospital Keyword: congenital unicuspid aortic valve , aortic valve , intraoperative finding , echocardiography pp.1081-1083
Published Date 2018/12/1
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A unicuspid aortic valve is an extremely rare congenital aortic valvular abnormality. We herein present 2 cases of unicuspid aortic valve diagnosed based on intraoperative findings. In case 1, a 75-year-old man was admitted to our hospital because of severe aortic regurgitation. We performed aortic valve replacement using a bioprosthetic valve, and a unicuspid aortic valve was definitively diagnosed according to the intraoperative findings. In case 2, a 54-year-old man developed dyspnea due to severe aortic stenosis. Aortic valve replacement using mechanical valve was performed, and we were able to diagnose unicuspid aortic valve intraoperatively. Achieving a preoperative definitive diagnosis of congenital unicuspid aortic valve by transthoracic echocardiography is reportedly difficult;however, transesophageal echocardiography may be effective for preoperative definitive diagnosis.

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71巻13号 (2018年12月)
電子版ISSN 2432-9436 印刷版ISSN 0021-5252 南江堂