Hennekens Charles H, Schneider Wendy R
Department of Clinical Science and Medical Education, florida Atlantic University, Boca Raton, FL 33431, USA.
Expert Rev Cardiovasc Ther. 2008 Jan;6(1):95-107. doi: 10.1586/14779072.6.1.95.
There is an increasing burden of occlusive cardiovascular disease (CVD) in developed, as well as in developing, countries. In fact, the WHO has projected that CVD will become the leading cause of death in the world in the next 10 years. The proximate cause of virtually all occlusive vascular events is thrombosis and the principal underlying cause is atherosclerosis. Aspirin, which inhibits platelet-dependent cyclooxygenase for the entire life of the platelet, has clinically important antithrombotic effects. Statins, which principally decrease low-density lipoprotein cholesterol, triglycerides and increase high-density lipoprotein cholesterol, have clinically important antiatherogenic effects. In secondary prevention, in a wide range of patients who have survived a prior myocardial infarction (MI), occlusive stroke, transient ischemic attack, as well as other high-risk conditions, long-term use of aspirin confers statistically significant and clinically important reductions in MI, stroke and CVD death. In addition, aspirin confers similar benefits when administered during acute MI or acute occlusive stroke. In primary prevention, aspirin confers a statistically significant and clinically important reduction in risk of a first MI but the data on stroke and CVD death remain inconclusive, so aspirin should be prescribed on an individual basis by the healthcare provider who weighs this clear benefit against long-term side effects. In a meta-analysis of 14 randomized trials of 90,056 subjects treated for 5 years, statins confer statistically significant and clinically important reductions in MI, stroke, CVD death and total mortality. In a meta-analysis of randomized trials of statins, in which aspirin was used in varying frequencies, the combination of aspirin and statins conferred greater clinical benefits than either agent alone on MI, occlusive stroke and CVD death. At present, the wider and more appropriate use of aspirin and statins will reduce premature MI, stroke and CVD death.
在发达国家以及发展中国家,闭塞性心血管疾病(CVD)的负担日益加重。事实上,世界卫生组织预计,在未来10年,CVD将成为全球主要死因。几乎所有闭塞性血管事件的直接原因是血栓形成,其主要潜在原因是动脉粥样硬化。阿司匹林可在血小板的整个生命周期内抑制血小板依赖性环氧化酶,具有临床上重要的抗血栓作用。他汀类药物主要降低低密度脂蛋白胆固醇、甘油三酯,并升高高密度脂蛋白胆固醇,具有临床上重要的抗动脉粥样硬化作用。在二级预防中,对于众多曾经历过心肌梗死(MI)、闭塞性中风、短暂性脑缺血发作以及其他高危情况并存活下来的患者,长期使用阿司匹林可使MI、中风和CVD死亡在统计学上显著降低且具有临床重要意义。此外,在急性MI或急性闭塞性中风期间使用阿司匹林也有类似益处。在一级预防中,阿司匹林可使首次发生MI的风险在统计学上显著降低且具有临床重要意义,但关于中风和CVD死亡的数据仍无定论,因此医疗保健提供者应根据个体情况开具阿司匹林处方,权衡这种明确的益处与长期副作用。在一项对90,056名受试者进行5年治疗的14项随机试验的荟萃分析中,他汀类药物可使MI、中风、CVD死亡和总死亡率在统计学上显著降低且具有临床重要意义。在一项对他汀类药物随机试验的荟萃分析中,其中阿司匹林的使用频率各不相同,阿司匹林与他汀类药物联合使用在MI、闭塞性中风和CVD死亡方面比单独使用任何一种药物都能带来更大的临床益处。目前,更广泛、更合理地使用阿司匹林和他汀类药物将减少过早发生的MI、中风和CVD死亡。