目的 :探讨蛛网膜下腔出血后脑血管痉挛对预后的影响。方法 :采用经颅多普勒动态检测 74例蛛网膜下腔出血患者大脑中动脉 (middlecerebralartery ,MAC)血流速度。结合临床表现检测出脑血管痉挛患者 40例。与无脑血管痉挛患者对比评定其发生神经功能缺失、脑梗死、病死率及平均病程 (天 )之间的差异。结果 :发现蛛网膜下腔出血后脑血管痉挛可并发脑梗死、增加病死率。结论 :提示脑血管痉挛是影响预后的重要因素。 Objective: To investigate the prognosis of cerebral vasospasm after subarachnoid hemorrhage. Methods: Transcranial Doppler was used to detect the blood flow velocity of middle cerebral artery (MAC) in 74 patients with subarachnoid hemorrhage. Combined with clinical manifestations detected in 40 cases of cerebral vasospasm. Differences in neurological deficit, cerebral infarction, case fatality, and mean duration (days) were compared with those without cerebral vasospasm. Results: Cerebral vasospasm was found to be associated with cerebral infarction and increased mortality after subarachnoid hemorrhage. Conclusion: It suggests that cerebral vasospasm is an important factor affecting prognosis.