踏车运动试验对疑似小儿心肌炎及功能性早搏的诊断价值探讨

The use of bicycle ergometer exercise test in the evaluation on potentially cardiogenic symptoms,'functional premature beats and convalescent myocarditis in children

目的 报告踏车试验 (EET)临床应用的结果 ,探讨EET在儿科应用的指征和价值。方法 用EGM ⅢC型踏车心功量仪对 2 6 8例 4～ 14岁患儿进行亚极量运动负荷试验 ,以心电图作为主要检测指标。结果 36例判断为阳性 (13 4% ) ;2 9例为可疑阳性 (10 8% )。EET总阳性率在有心源性症状者为 2 1 4% ,心肌炎恢复期为 32 5 % ,功能性早搏为 36 4% ,与对照组比较差异均有显著性 (P <0 0 1)。结论 EET对儿童心血管症状体征和心功能的评价都有相当的价值 。

Objective to report our experience in the application of bicycle ergometer exercise test(EET) and investigate the indications and value of EET in pediatric practice.Methods 268 of 4 to 14 year-old patients were teated with EGM-ⅢC ergometer for submaximal exercise lading.ECG changes were taken as the principal parameter.Results The test results of 36 cases were judged as positive(13.4%),and 29 cases were potentially positive(10.8%).The total positive rate of EET was 21.4% in patients with potentially cardiogenic symptom,32.5% with convalescent myocarditis and 36.4% with functional premature beats,all of which were significantly different from control(P<0.01).Conclusion EET can be used as an adjunct tool to evaluate cardiovascular symptoms and signs in children and needs to be further standardized and applied with more extensive indications in our practice.