脑卒中是发病率和病死率高的疾病,在美国,脑卒中是位于心脏病和癌症之后的第3位致死原因疾病。据估计,美国每年有73万人发生脑卒中,其中约16万人因此而死亡,其致死率高达20%。在我国,脑血管病也已成为危害中老年人身体健康和生命的主要疾病。全国每年新发脑卒中约200万人,每年 Stroke is a disease with a high morbidity and mortality. In the United States, stroke is the third leading cause of death after heart disease and cancer. It is estimated that there are 730,000 stroke strikes in the United States each year, of which about 160,000 people die, resulting in a mortality rate of up to 20%. In our country, cerebrovascular disease has also become the major disease endangering the health and life of the elderly. Every year, there are about 2 million new strokes in the country each year