脑卒中是由于大脑的血管突然破裂出血或血管堵塞造成大脑缺血、缺氧而引起。临床上将卒中分为缺血性卒中(IS)和出血性卒中。IS是最常见的卒中类型,约占所有脑卒中的87%,其余为出血性脑卒中。约有1/3的卒中发病前会有短暂性脑缺血发作,通常持续数分钟到数小时,不超过24 h,也叫“ Stroke is caused by a sudden rupture of blood vessels in the brain or blockage of blood vessels that cause ischemia and hypoxia in the brain. Stroke is clinically classified as ischemic stroke (IS) and hemorrhagic stroke. IS is the most common type of stroke, accounting for about 87% of all strokes, the rest is hemorrhagic stroke. Approximately one-third of patients have a transient ischemic attack before the onset of stroke, usually lasting minutes to hours and no more than 24 hours, also known as "