以往报告认为在急性心肌梗塞早期于冠状动脉内注射链激酶能改善左室功能及降低近期死亡率。然而,大多数这些结论均缺乏合适的对照与临床试验的严格标准,所得数据相互矛盾,所以有关其作用仍需证实。本文对55例心肌梗塞患者于造影控制下作冠状动脉内注射链激酶或硝酸甘油的随机试验。方法:55例在出现可疑急性心肌梗塞症状后4 Previous reports suggest that the injection of streptokinase into coronary arteries early in acute myocardial infarction may improve left ventricular function and reduce recent mortality. However, most of these conclusions lack the appropriate standard of control and clinical trials. The data obtained are contradictory to each other. Therefore, their role remains to be confirmed. In this paper, 55 patients with myocardial infarction in coronary angiography under the control of streptokinase or nitroglycerin in a randomized trial. Methods: 55 patients developed suspicious symptoms of acute myocardial infarction