Warm-up现象是一种大多发生在慢性稳定型心绞痛患者身上的心肌内源性自我保护方式,具有提高心肌缺血耐受性的积极的临床意义。其发生机制尚不十分明确,国外研究主要集中于氧供增加途径(可通过侧支循环、冠状动脉舒张、心肌血流的重新分布等实现)、氧耗减少途径、ATP敏感性钾通道途径、腺苷及其受体途径以及冠脉内皮功能等。 Warm-up phenomenon is a type of endogenous self-protection of myocardium that occurs mostly in patients with chronic stable angina and has the positive clinical significance of improving myocardial ischemic tolerance. The mechanism of its occurrence is not yet clear. Foreign studies mainly focus on the pathways of oxygen supply (through collateral circulation, coronary artery diastole, redistribution of myocardial blood flow, etc.), oxygen consumption reduction pathway, ATP-sensitive potassium channel pathway, Adenosine and its receptor pathways and coronary endothelial function.