蛛网膜下腔出血(SAH)引起的脑血管痉挛是脑动脉瘤破裂后致病和死亡的重要原因。脑血管痉挛的重要病理改变是不同程度的部分或全脑缺血,可造成迟发性神经损害(DIND),如在一定时间内不能恢复充足的血供可致脑梗死。改善血管痉挛引起的脑缺血,目前有三“H”疗法、动脉内灌注盐酸罂粟碱及腔内血管成形术等方法。但有些病人仍出现进行性缺血性神经 Cerebral vasospasm caused by subarachnoid hemorrhage (SAH) is an important cause of morbidity and mortality after cerebral aneurysm rupture. Important pathological changes of cerebral vasospasm are different degrees of partial or total cerebral ischemia, can cause delayed nerve damage (DIND), such as in a certain period of time can not be restored adequate blood supply can cause cerebral infarction. At present, there are three “H” therapies, intra-arterial infusion of papaverine hydrochloride and endoluminal angioplasty and other methods. However, some patients still appear progressive ischemic nerve