女患、23岁。因患马凡氏综合征、慢性心力衰竭长期自服甲基地戈辛(0.05mg/d)。1984年7月19日18时患者误服甲基地戈辛25片(共2.5mg),5小时后感胸闷、胃脘不适。查:血压正常,心率52次/分,律齐。心电图示窦性心动过缓.即肌注阿托品、静注苯妥英钠及极化液等。30日8时心悸明显,并有恶心、呕吐。心电图示心房纤颤合并Ⅱ度房室传导阻滞,心室率72次/分,S—T段 Female suffering, 23 years old. Due to Marfan syndrome, chronic heart failure long-acting self-methyl Geoxin (0.05mg / d). At 19 o’clock on July 19, 1984 patients mistakenly served as a base Geoxin 25 (2.5mg total), 5 hours later chest tightness, stomach discomfort. Check: normal blood pressure, heart rate 52 beats / min, law Qi. Electrocardiogram shows sinus bradycardia, intramuscular injection of atropine, intravenous phenytoin sodium and polarization solution. Palpitation at 8:00 on the 30th obvious, and nausea, vomiting. ECG showed atrial fibrillation with a degree of atrioventricular block, ventricular rate 72 beats / min, S-T segment