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目的探讨高频心电图在小儿病毒性心肌炎中的诊断价值。方法选取2010年3月至2013年6月收治的小儿病毒性心肌炎患者146例,分别使用常规心电图(ECG)和高频心电图(HFECG)于治疗前后对患儿进行检查,比较两种方法的阳性检出率,观察和总结治疗前后HFECG的变化情况。结果治疗前ECG检查结果显示,共42例正常,39例大致正常,65例异常,阳性检出率为44.52%;使用HFECG检查显示有4例正常,25例可疑异常,117例异常,阳性检出率为80.14%,明显高于ECG(P<0.01)。治疗前,HFECG切迹总数平均(11.97±3.11)个;治疗后1周,切迹总数平均(8.50±3.27)个;治疗后2周,切迹总数平均(5.60±2.97)个,治疗前后相比差异有统计学意义(P均<0.01)。结论与ECG相比,HFECG对小儿病毒性心肌炎检出率更高,评价疗效时可以HFECG切迹数变化情况作为参考。
Objective To investigate the diagnostic value of high frequency electrocardiogram in children with viral myocarditis. Methods A total of 146 children with viral myocarditis admitted to our hospital from March 2010 to June 2013 were enrolled. The children were examined before and after treatment with conventional electrocardiogram (ECG) and high frequency electrocardiogram (HFECG) respectively. The positive rates of both methods were compared Detection rate, observe and summarize the changes of HFECG before and after treatment. Results Before treatment, the results of ECG examination showed that there were 42 normal cases, 39 normal cases and 65 abnormal cases. The positive detection rate was 44.52%. There were 4 cases of normal, 25 cases of suspected abnormalities, 117 cases of abnormal and positive test using HFECG The rate of 80.14% was significantly higher than that of ECG (P <0.01). Before treatment, the average number of notch of HFECG was (11.97 ± 3.11). The average number of notch was (8.50 ± 3.27) at 1 week after treatment, and the average number of notch was (5.60 ± 2.97) at 2 weeks after treatment. The difference was statistically significant (P <0.01). Conclusions Compared with ECG, HFECG has a higher detection rate of viral myocarditis in children. The evaluation of the effect of HFECG on the changes of the number of cut-offs in HFECG can be used as a reference.