Circumferential dissection of ascending aorta

Abstract Acute type A aortic dissection is a surgical emergency. Unfortunately, the early outcome of surgical correction has not improved significantly over the past 20 years (Chiu and Miller, 2016). There is still conflict regarding operative extent and optimal conduct of the operation (Chiu and Miller, 2016). Stanford type A aortic dissection deforms the aortic root and causes aortic regurgitation. On rare occasion, there can be circumferential intimal disruption. Because of the critical, general and hemodynamic state of patients, surgery carries high risk. Two cases with circumferential Stanford type A aortic dissection were detected; Case I had interposition graft while Case II underwent Bentall's procedure.