KYOTO HEART 研究:高危高血压患者应用缬沙坦对心血管事件的影响:KYOTO HEART 研究的全新分析

2010-09-09 MedSci原创 MedSci原创

  目的:KYOTO HEART 研究显示在高危高血压患者中应用缬沙坦能够获得额外的血压降低而对心脑血管事件有利(Eur Heart J 2009;30:2461)。在此我们将报道缬沙坦在一级、二级预防、联合钙通道阻滞剂(CCB)的治疗方案及心血管事件预防中的辅助性分析。    方法和结果:KYOTO HEART 研究是一项多中心、采用反应依赖性剂量滴定方案

  目的:KYOTO HEART 研究显示在高危高血压患者中应用缬沙坦能够获得额外的血压降低而对心脑血管事件有利(Eur Heart J 2009;30:2461)。在此我们将报道缬沙坦在一级、二级预防、联合钙通道阻滞剂(CCB)的治疗方案及心血管事件预防中的辅助性分析。
    方法和结果:KYOTO HEART 研究是一项多中心、采用反应依赖性剂量滴定方案、两组平行对照的研究。血压未被有效控制的日本高危高血压患者(n=3031)被随机分组,一组为传统的非 ARB降压方案,一组为在传统方案基础上加入缬沙坦治疗。主要复合心血管终点为卒中、心肌梗死、心力衰竭和心绞痛。最新分析如下:1)915名有既往心血管疾病史,2116名没有心血管疾病史。与传统组比较,缬沙坦对于一级预防(即预防中风发生)(3% vs.6.7%,HR 0.44;95% CI:0.29~0.68)和二级预防(即预防心绞痛发作)均有显著作用。2)主要终点事件在缬沙坦+CCB组(n=773),缬沙坦+非CCB组(744),非ARB+CCB组(1034),非ARB+非CCB组分别为5.0%,6.0%,9.8%和11.0%。缬沙坦+CCB组与非 ARB+CCB组比较,主要终点事件降低(P=0.0003,风险比 0.50,95% CI:0.35~0.73)。缬沙坦+非CCB组和非ARB+非CCB组比较,主要终点事件降低(P=0.002,HR 0.55,95% CI:0.37~0.80)。随访期间患者一般情况及血压均无显著差别。3)依据临床资料和冠脉造影检查结果,心绞痛分为不稳定心绞痛和劳力型心绞痛。缬沙坦对于预防劳力型心绞痛具有显著效果(1.1%vs2.3%,P=0.01),但是对不稳定心绞痛无效(0.2% vs.0.59%,P=0.10)。4)对中风事件的预防主要归因于预防脑梗死发生(18 vs.36),对脑出血没有预防作用(2 vs.5)。
    结论:在高危高血压患者中缬沙坦对于一级中风预防和二级心绞痛预防有效。缬沙坦联合CCB能够更有效的预防心血管事件发生。缬沙坦改善心血管预后的有利作用主要是能够预防脑梗死和劳力型心绞痛的发生。

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    2010-09-11 zhaojie88
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    2010-09-11 slcumt