主动脉夹层(aortic dissection,AD)是指主动脉腔内的血液通过内膜的破口进入主动脉壁中层而形成的血肿,被称为主动脉夹层血肿,简称主动脉夹层〔1〕。AD因累及分支血管范围的不同而临床表现复杂多样,典型临床表现为胸、背或腹部剧烈撕裂样疼痛;近些年有文献报道一些AD患者临床表现为无痛性症状〔2-4〕,该类患者由于症状不典型,极易被漏诊、误诊,延误病情。本研究旨在回顾 Aortic dissection (aortic dissection, AD) refers to the aortic cavity blood through the intima break into the middle of the aortic wall hematoma, known as aortic dissection hematoma, referred to as aortic dissection 〔1〕. AD due to the involvement of different branches of the blood vessels and the clinical manifestations of complex and diverse, the typical clinical manifestations of chest, back or abscess severe tear-like pain; in recent years there are reports of some AD clinical manifestations of painless symptoms (2-4) , Such patients due to atypical symptoms, easily missed diagnosis, misdiagnosis, delay the disease. The purpose of this study is to review