主动脉-冠状动脉搭桥术可使心肌缺血区供血改善,这样造成的供氧直接改善比药物治疗(主要在于减少心肌需氧量)更能达到下列的目的:防止心绞痛发作,加强体力,减少心肌梗死危险,延长病人寿命。主动脉-冠状动脉搭桥术实践经验表明,术后早期效果较好。手术死亡率与适应症及外科技术有关。手术后心绞痛消失的占60％,减轻的占30％。手术后早期冠状动脉造影术证明移植的侧支血管85～90％是畅通的。此外,许多患者体力加强,左心室功能改善。但手术远期疗效如何,血管是否保持畅通,难以 Aorto-coronary bypass surgery can improve the supply of blood to the ischemic myocardium, thus resulting in direct improvement of oxygen supply than drug treatment (mainly to reduce myocardial oxygen demand) to achieve the following objectives: to prevent angina pectoris, increase physical strength, reduce Risk of myocardial infarction, extend patient life. Aortic - coronary bypass surgery experience shows that the early postoperative effect is better. Surgical mortality and indications and surgical techniques. Angina disappeared after surgery accounted for 60%, reduce the 30%. Early postoperative coronary angiography shows that 85-90% of the transplanted collateral vessels are clear. In addition, many patients have increased physical strength and left ventricular function improves. However, the long-term efficacy of surgery, whether the blood vessels remain unimpeded, difficult