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97例进行经皮穿刺冠脉血管成形术(PTCA)的冠脉狭窄病人中,符合下列标准者21例列为本项研究对象:(1)气囊扩张时出现心肌缺血性损伤(ST段抬高0.1mV以上或冠脉闭塞60秒以上).(2)安静心电图为正常窦性心律,QRS波时限<0.12秒,病人年龄37～72岁,心功能Ⅲ～Ⅳ级(NYHA标准).气囊扩张术前服安定5～10mg及苯海拉明50mg,所有病人均静脉注射200μg硝酸甘油.术中
Of 97 patients with coronary artery stenosis undergoing percutaneous transluminal coronary angioplasty (PTCA), 21 patients who met the following criteria were included in this study: (1) myocardial ischemic injury during balloon dilatation (ST segment elevation High 0.1mV or more coronary occlusion for more than 60 seconds.) (2) Quiet ECG for normal sinus rhythm, QRS wave duration <0.12 seconds, patients aged 37 to 72 years, heart function Ⅲ ~ Ⅳ grade (NYHA standard) Before surgery, diazepam was administered in an amount of 5 to 10 mg and diphenhydramine 50 mg, and all patients received 200 μg of nitroglycerin intravenously.