背景:尽管经过30多年的临床试验,抗高血压药物在冠心病中的最佳应用方案仍然存在不确定性。一些研究显示冠心病患者可从降压药物中获得益处,但它们入选的患者大多存在高血压或临界高血压,很少将冠状动脉造影作为诊断冠心病标准且选择血压小于140/90mmHg(1mmHg=0.1333kPa)的患者 Background: Despite more than 30 years of clinical trials, there remains uncertainty regarding the optimal use of antihypertensives in coronary heart disease. Some studies have shown that patients with coronary heart disease can benefit from antihypertensive drugs, but most of their patients have high blood pressure or critical hypertension. Coronary angiography is rarely used as a standard for diagnosing coronary artery disease and blood pressure less than 140/90 mmHg (1 mmHg = 0.1333 kPa) of patients