主动脉夹层(AD)是指主动脉内的循环血液通过内膜破裂口进入主动脉中层形成夹层血肿,引起主动脉壁纵向剥离和相应内脏供血不足的严重心血管急症。主动脉夹层患者常在急诊科首诊,因起病急,临床症状多样、复杂,早期诊断较困难,容易误诊和漏诊,从而延误治疗导致病死率增加。文献报 Aortic dissection (AD) refers to aortic circulation of blood through the rupture of the intima into the middle of the aorta into the formation of dissection, causing longitudinal dissection of the aortic wall and the corresponding visceral insufficiency of the serious cardiovascular emergency. Patients with aortic dissection often first visit the emergency department, due to acute onset, clinical symptoms and diverse, complex, early diagnosis is more difficult, easily misdiagnosed and missed diagnosis, resulting in delayed treatment leading to increased mortality. Literature newspaper