屏气发作儿童的12导联心电图P波、T波及ST段振幅变化

Changes in P-wave, T-wave, and ST segment amplitude in 12 lead electrocardiogram in children with breath holding spell

目的：探讨屏气发作儿童12导联心电图的P波、T波及ST段振幅变化。方法：收集2009年10月至2015年9月在中南大学湘雅二医院儿童心脏专科门诊就诊、明确诊断为屏气发作的儿童29例（研究组）,年龄3个月~6（1.82±1.27）岁,男24例,女5例。按性别及年龄匹配同期在中南大学湘雅二医院儿童保健专科门诊进行健康检查的儿童30例为对照组。采用广东中山博爱医用电子仪器厂的SR-1000A心电综合自动分析仪对受检者进行12导联心电图描记,比较两组儿童心电图变化。结果：与对照组比较,研究组V5导联P波振幅降低[（44.10±23.98）vs（58.30±21.19）μV,P〈0.05];V6导联T波振幅增高[（423.80±122.60）vs（350.00±105.73）μV,P〈0.05];ST段振幅在Ⅱ导联增高[（84.80±39.97）vs（57.30±38.77）μV,P〈0.05],a VR导联负向增大[（–77.60±37.41）vs（–51.00±33.46）μV,P〈0.05],a VL导联增高[（35.20±28.24）vs（17.7±33.9）μV,P〈0.05],V5导联增高[（111.00±59.36）vs（69.00±36.33）μV,P〈0.05],V6导联增高[（79.3±45.51）vs（51.3±33.19）μV,P〈0.05]。结论：屏气发作儿童存在自主神经功能障碍,ST段振幅变化较为敏感。

Objective： To explore the change of the amplitude of P wave, T wave and ST segment of 12 lead electrocardiogram （ECG） in children with breath holding spell. Methods： A total of 29 children （24 males and 5 females） with breath holding spell in Second Xiangya Hospital, Central South University were enrolled for this study from October, 2009 to September, 2015. Their ages ranged from 3 months to 6 years, with an average of 1.82±1.27 years old. The control group consisted of 30 age-matched and gender-matched healthy children. All subjects were underwent electrocardiography by the SR-1000A comprehensive automatic electrocardiograph analyzer, and the changes of the ECG parameters were compared between the two groups. Results： Compared with the control group, the amplitude of P-wave of V5 lead was decreased [（44.10±23.98） vs （58.30±21.19）μV, P〈0.05], the amplitude ofT-wave of V6 lead was increased [（423.80±122.6） vs （350.00±105.73） FV, P〈0.05], the amplitude of ST segment of II lead was increased [（84.80±39.97） vs （57.30±38.77）μV, P〈0.05], the amplitude of ST segment of aVR lead was increased [（-77.60±37.41） vs （-51.00±33.46） ~tV, P〈0.0S], the amplitude of ST segment of aVL lead was increased [（35.20±28.24） vs （17.70±33.90）μV, P〈0.05], the amplitude of ST segment of V5 lead was increased [（111.00±59.36） vs （69.00±36.33）μV, P〈0.05], the amplitude of ST segment of V6 lead was increased [（79.30±45.51） vs （S 1.30±33.19）μV, P〈0.0S]. Conclusion： The children with breath holding spell have autonomic nerve dysfunction. The amplitude of ST segment changes is sensitive.