【摘要】 目的 了解和探讨重症心肌炎的心电图改变、心肌酶的变化与临床特征。方法 观察12例临床表现复杂、不典型，心肌酶学异常增高,心电图出现不典型急性心肌梗死时的胸前部导联出现小r波、坏死性Q波、ST段损伤型改变,合并各种严重心律失常患者。结果 12例均出现心律失常,4例死亡前均表现为心功能不全、室性心动过速。结论 重症心肌炎发病呈暴发型,起病急,病情重,变化快。医生应该高度重视，密切观察病情变化,及早确诊，患者有望获救成功。

    【关键词】 心肌炎临床特征； 心肌酶改变； 心电图

    【Abstract】 Objective To discuss and understand the changes of electrocardiogram(ECG) and myocardial enzymes and clinical manifestations of heavy myocarditis.Methods The clinical data and myocardial enzyme and ECG of 12 patients were studied. In all patients, the plasm levels of myocardial enzyme increased abnormally and ECG showed necrotic Q wave, injury type change of ST segment, one way curve ST-T change and tiny r wave change which likes those with acute myocardial infarction. Various kinds of cardia arrhythmias were also found in these patients.Results Twelve patients were all cardiac arrhythmias, four patients were all heart insufficiency before death, ventricular tachycardia.Conclusion The mortality of severe myocarditis is very high, but it can be controled if confirmed diagnosis could be made early. ......