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收治小儿病毒性心肌炎急性期８９例，作动态心电图监测，心电异常表现发现率明显高于常规心电图，其结果：过早搏动８７例（９７．７５％），窦律失常７８例（８７．６４％），代谢性改变（Ｓ－Ｔ段改变、Ｑ－Ｔ间期延长、Ｔ波改变）４０例（４４．９４％），传导阻滞１８例（２０．２２％），２４小时中表现为２种以上心电改变的有７４例（８３．１５％），最多为６种改变。显示病毒性心肌炎急性期心电改变为多样性、多变性及易变性。８７例过早搏动中，其严重度分级、昼夜类型、频度与基本心率的关系均与无症状性早搏不同，提示病毒性心肌炎急性期的早搏以潜在恶性为主，应加强监视，多需进行抗心律失常药物治疗。
89 cases of children with viral myocarditis admitted to the acute phase for dynamic ECG monitoring, ECG findings were significantly higher than the conventional ECG, the results: premature beat in 87 cases (97.75%), sinus abnormalities in 78 cases (87. 40% (44.94%) of the metabolic changes (S-T changes, Q-T interval prolongation and T wave changes), 18 cases (20.22%) of conduction block in 24 hours There are 74 cases (83.15%) for 2 or more ECG changes, up to 6 kinds of changes. ECG showed changes in acute myocarditis viral diversity, variability and variability. 87 cases of premature beats, the severity of grading, diurnal type, frequency and basic heart rate were asymptomatic and premature beats different, suggesting that early acute viral myocarditis premature be predominantly malignant, should be strengthened surveillance, and more need Anti-arrhythmic drug treatment.