对于已经患有心脑血管疾病的人群,医生会建议患者长期服用小剂量阿司匹林,预防病情复发,也就是“二级预防”。研究证实,二级预防可以有效降低25%的严重心血管事件风险。但是,没有发生心脑血管病的一般人群是否应当服用小剂量阿司匹林进行一级预防,尚存在争议。近来发表的资料表明,低危人群用阿司匹林预防心脑血管病,其获益不大,由于阿司匹林可引起出血危险,其有益作用被出血的危险所抵消。清楚3个概念要想弄清楚哪些人群需要服用阿司匹林,大家需 For those already suffering from cardiovascular and cerebrovascular diseases, doctors will advise patients to take small doses of aspirin long-term, to prevent the recurrence of the disease, that is, “secondary prevention.” Studies confirm that secondary prevention can effectively reduce the risk of serious cardiovascular events by 25%. However, whether the general population without cardiovascular and cerebrovascular diseases should take low-dose aspirin for primary prevention remains controversial. Recent data show that low-risk populations with aspirin to prevent cardiovascular disease, its benefit is not, because aspirin can cause bleeding risk, its beneficial effects offset by the risk of bleeding. Clear three concepts To figure out what kind of people need to take aspirin, we need