主动脉夹层动脉瘤破裂因其发病急、进展快、可导致猝死等严重后果,在临床难以确诊,易漏诊、误诊而导致医疗纠纷。本文通过回顾性分析4例主动脉夹层动脉瘤猝死引发的医疗纠纷尸检病例,探讨主动脉夹层动脉瘤猝死患者的死因、发病机制、病理改变和引起纠纷的原因,用以提高诊治水平,预防医疗纠纷的发生。 Aortic dissection aneurysm rupture because of its acute onset, rapid progress, can lead to serious consequences such as sudden death, clinically difficult to diagnose, easily missed diagnosis, misdiagnosis and lead to medical disputes. This paper retrospectively analyzed 4 autopsy cases of medical dispute caused by sudden death of aortic dissection aneurysm and explored the causes of death, pathogenesis, pathological changes and causes of disputes caused by sudden death of aortic dissection aneurysms in order to improve the level of diagnosis and treatment, prevention of medical treatment Occurrence of disputes.