糖类皮质激素具有扩张冠状动脉、改善心肌收缩力和使缺血心肌细胞膜稳定的能力,因而可能对心肌具有一定的保护作用。此药的细胞膜稳定作用,可反映于缺血部分心肌的细胞酶丧失减低。本文旨在研究急性心肌缺血时使用地塞米松,是否可以改变心肌酶的释放或心肌损害的心电图征象。 Glucocorticoids have the ability to dilate the coronary arteries, improve myocardial contractility and stabilize ischemic cardiomyocyte membranes, and thus may have some protective effect on the myocardium. The drug’s cell membrane stability, can be reflected in the ischemic part of the myocardial cell enzyme loss decreased. This article aims to investigate whether acute myocardial ischemia with dexamethasone can alter the release of myocardial enzymes or myocardial damage in ECG signs.