Type A Acute Aortic Dissec - tion

with a poor prognosis without prompt optimal management. Even though the overall mortality declined over these years, the in-hospital mortality was still high up to 19.7% for those patients receiving emergent surgery and 57.1% in those medically treated based on a 17-year analysis of International Registry of Acute Aortic Dissection (IRAD) [1]. The most typical symptom of patients with TAAAD is abrupt onset of chest and/or back pain, often depicted as the worst one they have ever experienced. Besides, dissecting plane may sometimes obstruct the blood flow distribution to peripheral organ or even lead to generalized ischemia, causing malperfusion and leading to adverse outcomes [2]. The associated clinical manifestations depend on the ischemic location and can be divided into localized ischemia (cerebral, spinal, mesenteric, renal, limb, and coronary malperfusion) and generalized ischemia. The reported overall incidence of malperfusion is 21-33% and the in-hospital mortality is 16-44% [3-5].