主动脉夹层分离又称主动脉夹层瘤或主动脉夹层血肿,是血液渗入主动脉中层形成夹层血肿并沿着主动脉壁延伸剥离的一种严重的心血管急症[1],典型临床表现多为突然的激烈胸痛。约90%以上的患者疼痛一开始即为剧烈的胸部疼痛,往往难以忍受的撕裂样疼痛,同时伴或不伴有休克,以及夹层 Aortic dissection, also known as aortic dissection or aortic dissection hematoma, the blood into the middle of the aorta to form dissection and dissection along the aortic wall dissection of a serious cardiovascular emergency [1], the typical clinical manifestations are mostly Sudden intense chest pain. More than 90% of patients initially have severe chest pain, unbearable tearing pain with or without shock, and dissection