術中大動脈解離を生じた僧帽弁形成術の1例

Intraoperative Aortic Dissection during Mitral Valve Plasty：Report of a Case

はじめに　術中大動脈解離はまれな疾患であるが致死率が高く，早期診断と処置が重要である．われわれは，僧帽弁形成術中に発症した大動脈解離に対して上行大動脈置換術を追加し，経過良好な症例を経験したので報告する．

We report the case of a 74-year-old woman who underwent mitral valve plasty for mitral regurgitation. During the surgery, the ascending aorta was dilated and turned dark red after aortic cannulation. Intraoperative transesophageal echocardiography and direct epiaortic echography revealed type A aortic dissection. In addition to mitral valve plasty, replacement of the ascending aorta was performed under hypothermic circulatory arrest. The postoperative course was uneventful. Because intraoperative aortic dissection is a rare complication, its rapid identification and appropriate management is essential.