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目的：观察病毒性心肌炎患儿动态心电图及左心功能的变化；方法：对６２例该病患儿进行２４ｈ动态心电图监护和超声心动图检测ＥＦ、ＦＳ、ＣＩ，并对出现期前收缩患儿做了对比性观察；结果：心律失常乃病毒性心肌炎患儿最常见的心电异常，动态心电图的检出率（４６／６２）明显高于常规心电图（３０／６２），并且能发现常规心电图难以发现的复杂心律失常。２４ｈ心脏早搏＞１４４００次者较２４ｈ早搏＜１４４００次者左心功能明显受影响（Ｐ＜０．０５）；结论：动态心电图能全面地显示心电异常活动，提高心律失常的检出率，频发早搏可影响心功能
Objective: To observe the changes of ambulatory electrocardiogram and left ventricular function in children with viral myocarditis. Methods: 62 cases of children with this disease were monitored by echocardiography and echocardiography for EF, FS and CI. The results showed that arrhythmia was the most common abnormal ECG in children with viral myocarditis. The detection rate of ambulatory electrocardiogram (46/62) was significantly higher than that of conventional electrocardiogram (30/62), and the common electrocardiogram Difficult to find complex arrhythmias. 24h premature beats> 14400 times than 24h premature beats <14400 times left ventricular function was significantly affected (P <0.05); Conclusion: Holter monitoring can fully display abnormal ECG activity, improve the detection rate of arrhythmia, frequency Premature beat can affect heart function