背景资料:兰佐卿,男,现年70岁,血压正常,血脂、胆固醇正常,心脑血管医检正常,每天坚持锻炼。2002年2月,兰先生行走很困难,说话不是很清楚。据其家人介绍,兰先生在2001年发生过心梗和脑梗。他以前是长跑爱好者,近几年又在爬山,2001年之前几乎没病,可以说几乎没上过医院。 Background information: Lanzuo Qing, male, aged 70 years old, normal blood pressure, blood lipids, cholesterol, cardiovascular and cerebrovascular examination was normal, adhere to exercise every day. In February 2002, Mr. Lan was having difficulty walking and his speech was not very clear. According to his family, Mr. Lan had MI and cerebral infarction in 2001. He used to be a long-distance runner and has been hiking in recent years. He was almost ill until 2001, and almost never went to a hospital.