冠状动脉旁路移植术(CABG)后,因为原有的冠状动脉粥样硬化进展及旁路移植物闭塞,仍可发生不稳定型心绞痛、心肌梗死及死亡的危险。虽然美国心脏病学会／美国心脏协会 (ACC／AHA)在CABG后治疗指南中建议应用阿司匹林及降脂药物,但是否应用β阻滞剂、钙拮抗剂、硝酸酯类或血管紧张素转换酶抑制剂未做讨论。因此,CABG后患者如何进行恰当的内科治疗并未取得共识。本文对CABG后行内科治疗的随机 Coronary artery bypass grafting (CABG) may still cause unstable angina pectoris, myocardial infarction and the risk of death because of the existing progression of coronary atherosclerosis and bypass graft occlusion. Although the American College of Cardiology / American Heart Association (ACC / AHA) recommends aspirin and lipid-lowering drugs in the CABG guidelines, whether beta blockers, calcium antagonists, nitrates or angiotensin-converting enzyme inhibitors Agent not discussed. Therefore, there is no consensus on how to conduct proper medical treatment after CABG. This article on the CABG surgical treatment of the randomized