无症状性脑梗塞 (SI)指无卒中史而影像学检查或尸检发现的脑梗塞 ,系中风的早期改变。其临床诊断标准为 CT发现梗塞灶与本次发病无关 ,患者及其家属未提供卒中病史。1989～ 1991年 ,我们收治 2 96例 SI患者 ,对其进行了长期随访 ,现将结果报告如下。资料与方法 :2 96例患者 ,年 Asymptomatic Cerebral Infarction (SI) refers to a stroke-free history of cerebral infarction found by imaging or autopsy, an early change in stroke. The clinical diagnostic criteria for CT found that infarction has nothing to do with the incidence of this episode, patients and their families did not provide a history of stroke. From 1989 to 1991, we treated 2 96 SI patients and conducted long-term follow-up. The results are reported below. Materials and Methods: 2 96 patients, year