[Repair of iatrogenic aortic dissection during Bentall operation in a patient with annulo-aortic ectasia and mitral regurgitation].

Intraoperative aortic dissection is a rare but potentially fatal complication of cardiac surgery. In this report, we present a case of intraoperative aortic dissection during a Bentall operation for annulo-aortic ectasia repair combined with mitral valve replacement. The aorta was successfully repaired using another dacron tube graft after profound hypothermic circulatory arrest.