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脑血管病是临床常见病。美国(1969)脑血管的发病率占总人口 2.6％,占65岁以上人口的21‰,日本脑血管病占40岁以上人口的7.9‰。日本人死亡原因中,脑血管病居首位,美国居第三位。蛛网膜下腔出血在脑血管病中占有一定位置。据统计每10万人口中的发病率每年为5—20人,占脑血管总发病率的1/5～1/8。国内文献,长春1953～1973年20年中,共收治脑血管疾病4205例,其中蛛网膜下腔出血943例,占22.4％,我科1964～1977年,报导的1330例急性脑血管病,其中蛛网膜下腔出血151例,占11.3％,
Cerebrovascular disease is a common clinical disease. The incidence of cerebrovascular disease in the United States (1969) accounted for 2.6% of the total population, accounting for 21% of the population over the age of 65 and Japanese cerebrovascular disease accounting for 7.9% of the population over the age of 40. Among the causes of death in Japan, cerebrovascular disease ranks first, and the United States ranks third. Subarachnoid hemorrhage in cerebrovascular disease occupy a certain position. According to statistics, the incidence rate per 100,000 population is 5-20 per year, accounting for 1/5 to 1/8 of the total incidence of cerebrovascular diseases. Domestic literature, Changchun from 1953 to 1973 in 20 years, a total of 4205 cases of cerebral vascular disease, including 943 cases of subarachnoid hemorrhage, accounting for 22.4%, our department from 1964 to 1977, reported 1330 cases of acute cerebrovascular disease, of which Subarachnoid hemorrhage in 151 cases, accounting for 11.3%