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急性脑血管病或称中风可由许多不同病因引起。目前,一般认为主要可分两大类:(1)缺血性脑血管病。(2)颅内出血。近年来的研究证明,缺血性脑血管病的发病率和病死率远较颅内出血高得多。根据Kurtzke氏1969年报告,缺血性脑血管病占脑血管病发病率的62％,在每100,000人口中病死数为120人;而原发性肺内出血的发病率为16％,在每100,000人口中的病死数为40人(见附表1)。也有作者指出:在脑血管病最常见的原因中,脑血栓形成约占40％、脑栓塞25％、脑内出血20％、蛛网膜下腔出血5％。虽然许多统计并不一致,但总的趋向近年来缺血性脑血管病的发病率相对的提高
Acute cerebrovascular disease or stroke can be caused by many different causes. Currently, it is generally considered mainly divided into two categories: (1) ischemic cerebrovascular disease. (2) intracranial hemorrhage. In recent years, studies have shown that the incidence of ischemic cerebrovascular disease and mortality is much higher than intracranial hemorrhage. According to Kurtzke’s 1969 report, ischemic cerebrovascular disease accounts for 62% of the morbidity of cerebrovascular disease with a death toll of 120 per 100,000 population; whereas the incidence of primary intrapulmonary hemorrhage is 16% at 100,000 The death toll in the population is 40 (see Schedule 1). Some authors also point out that in the most common causes of cerebrovascular disease, cerebral thrombosis accounts for about 40%, cerebral embolism 25%, intracerebral hemorrhage 20% and subarachnoid hemorrhage 5%. Although many statistics are not consistent, the overall trend has been a relative increase in the incidence of ischemic cerebrovascular disease in recent years