众所周知,心绞痛是由于心肌供氧量与需氧量之间平衡失调所致,在多数情况下是近端冠状动脉阻塞引起氧供不足的结果。形成动脉阻塞的原因是粥样硬化造成的器质性狭窄,或间歇性功能性阻塞,也可能两者并存。功能性阻塞可为神经性、血液性、代谢性和机械性等多种机制所诱发。由于心绞痛的发病常有多种因素,故致病因素不同,抗心绞痛药物的疗效亦随之而异。选择抗心绞痛药物应根据冠状动脉阻塞究系功能性抑或器质性而定。因此,阐明各种抗心绞痛药物对冠 It is well-known that angina pectoris is caused by imbalance of myocardial oxygen supply and oxygen demand, and in most cases is the result of insufficient oxygen supply due to proximal coronary occlusion. The reason for the formation of arterial blockage is caused by atherosclerosis of the organic stenosis, or intermittent functional obstruction, the two may co-exist. Functional obstruction can be neurogenic, hematological, metabolic and mechanical and other mechanisms induced. As the incidence of angina often has a variety of factors, so different risk factors, the efficacy of anti-anginal drugs also vary. Select anti-angina drugs should be based on coronary artery obstruction or functional organic system may be. Therefore, elucidation of various anti-anginal drugs on the crown