中文摘要：

蛛网膜下腔出血是神经外科常见急症，致死率较高，幸存者多伴有神经及认知功能障碍。脑血管痉挛是蛛网膜下腔出血的常见并发症和致残、致死的重要原因，对其病理生理学机制的研究将促进治疗方案的改进，有助于改善患者的预后。

英文摘要：

Subarachnoid hemorrhage （SAH） is a common and serious neurologic emergent condition, which has high mortality. The survivor always has neurologic or cognitive dysfunction. Cerebral vasospasm is one of the main causes of morbidity and mortality following acute subarachnoid hemorrhage. The pathophysiology of cerebral vasospasm is poorly understood. A better understanding of the pathophysiology of SAH is important to develop more suitable therapies.