Stanford B aortic dissection involving the opening of major visceral artery presents a real challenge to the surgeons,preventive graft bypass before EVR is an effective measure against mesenterie ischemia.

• 内脏动脉受累的Stanford B型急慢性ADA,术前正确的判断及合理的手术方式往往可以挽救患者的生命,减少主动脉破裂的危险以及内脏缺血致死的可能。