目的　探讨蛛网膜下腔出血 (SAH)应激性血糖升高与其病情严重程度及预后的关系。方法　把SAH病人分为正常血糖组与血糖升高组 (有糖尿病病史者除外 ) ,比较两组病人在病情严重程度、预后及合并其它并发症方面的差异。结果　血糖升高组临床疗效差 ,并发症多 ,病死率高。病情越重 ,出现血糖升高的机率越高。结论　SAH并发血糖升高不仅是脑卒中后神经功能损害的应激反应 ,而且可作为预测SAH预后不良的因素之一。 Objective To investigate the relationship between the stress-induced hyperglycemia and the severity and prognosis of subarachnoid hemorrhage (SAH). Methods SAH patients were divided into normal glucose group and hyperglycemia group (except those with history of diabetes mellitus). The differences in severity, prognosis and other complications were compared between the two groups. Results The group with high blood sugar had poor clinical curative effect, many complications and high case fatality rate. The more serious the disease, the higher the probability of rising blood sugar. Conclusions SAH complicated with hyperglycemia is not only the stress response to neurological dysfunction after stroke, but also one of the factors to predict the poor prognosis of SAH.