主动脉夹层(AD)在临床上虽然少见,但其发病急骤,病情进展迅速,急性期病死率高。有研究表明[1,2],未经治疗的 AD患者,发病第一个24h内每小时死亡约1%,50%以上1周内死亡;约70%二周内死亡;约90%一年内死亡。可见该病为心血管疾病中最致命的急症之一,且 AD的临床表现复杂多变,? Aortic dissection (AD), although rare in clinical practice, but its incidence of sudden, rapid progression of the disease, acute high mortality. Studies have shown that [1,2], untreated AD patients, about 1% of deaths per hour in the first 24h of onset, more than 50% of deaths within 1 week; about 70% within two weeks of death; about 90% within one year death. Can be seen that the disease is one of the most deadly emergency cardiovascular disease, and the clinical manifestations of AD complex and volatile?