多年来,一般认为硝酸甘油只能用于心绞痛;一旦发生心肌梗塞,则硝酸甘油禁用,因它所引起的低血压与心动过速可能加重心肌缺血。晚近,实验资料提示阻断冠状动脉后,硝酸甘油可减少心肌缺血,缩小梗塞范围。本文通过两组实验,提示硝酸甘油能改善心肌梗塞时的心电稳定性,提高心室颤动阈,减少心室颤动的发生。 Over the years, nitroglycerin is generally considered only for angina pectoris; in the event of myocardial infarction, nitroglycerin is disabled because of the hypotension and tachyarrhythmias it causes may aggravate myocardial ischemia. Late, the experimental data suggest that after blocking the coronary artery, nitroglycerin can reduce myocardial ischemia, reduce infarct size. This article through two sets of experiments, suggesting that nitroglycerin can improve myocardial infarction ECG stability, improve ventricular fibrillation threshold and reduce the occurrence of ventricular fibrillation.