主动脉夹层(Aortic Dissection,AD)系主动脉内膜撕裂后循环中的血液通过裂口进入主动脉壁内,导致血管壁分层的一种具有致命危险的主动脉疾病。根据美国1980年前的资料估计主动脉夹层的年发病率约5～10例/百万,但随着诊断技术的不 Aortic Dissection (Aortic Dissection, AD) Department of aortic intimal tear after the blood circulation through the gap into the aortic wall, leading to the vascular wall delamination of a deadly dangerous aortic disease. According to data from the United States before 1980 estimated annual incidence of aortic dissection of about 5 to 10 cases / million, but with the diagnosis of technology is not