降压治疗对脑卒中二级预防的临床证据

目的综合分析与脑卒中有关的降压治疗大样本随机对照试验,为脑卒中二级预防提供临床证据.方法计算机检索Medline(1966～2003年6月),对已公开发表的大样本随机对照降压治疗预防脑卒中再发的临床试验进行综合分析.分析指标为脑卒中事件、冠心病事件及总死亡率等.结果共纳入脑卒中后抗高血压治疗的随机对照试验(PATS)、多中心培哚普利降压治疗脑卒中/一过性脑缺血发作的随机对照临床试验(PROGRESS)和心脏结局预防评估研究(HOPE)3个试验进行综合分析.结果显示:降压治疗组较安慰剂对照组降低脑卒中再发危险率28%,降低冠心病危险率15%,降低总死亡率11%;降压治疗不仅能降低脑血管病或心血管病高危者伴高血压的脑卒中再发危险,而且对未伴高血压者也能降低其脑卒中危险.结论降压治疗对脑卒中二级预防是有益的.

Clinical Evidence of Blood Pressure Lowering Therapy on the Secondary Prevention of Stroke

Objective To review randomized controlled trials of blood pressure (BP) lowering therapy on stroke prevention to provide evidence for clinical practice. Method We searched Medline (1966-2003.6) and the large-sample randomized controlled trials on BP lowering regimen in patients with stroke history were reviewed. Endpoints included the ocurrance of stroke, coronary heart disease and mortality. Results Three trials of PATS, PROGRESS and HOPE were analysed. The review showed that stroke recurrent risk was reduced by 28%, CHD risk decreased by 15% and total mortality risk reduced by 11% in BP lowering treatment group compared with placebo control group. Stroke risk was reduced not only in hypertensive patients with previous cerebrovascular diseases but also in non-hypertensive patients. Conclusions BP lowering therapy is beneficial for the secondary prevention of stroke.