When the aneurysm included the aortic arch, brain protections were executed by adopting deep hypothermia circulatory arrest (DHCA) or DHCA combined with retrograde cerebral perfusion (RCP).

• 其中夹层动脉瘤 2 2 2例 ,74例累及弓部 ,为实施脑保护 ,将此类病人分为 4个亚组 :深低温停循环组 (DHCA)、深低温停循环辅以上腔静脉逆行灌注组 (DHCA +RCP)、应急重建脑灌注组、上下分离灌注组 ;