实用心电学杂志2017，Vol.26Issue(3)：187-189,192,4.DOI:10.13308/j.issn.2095-9354.2017.03.008
儿童心肌致密化不全Tp-Te、Tp-Tec、Tp-Te/QT的变化
The changes of Tp-Te, Tp-Tec and Tp-Te/QT in children with noncompaction of ventricular myocardium
孙东明 1张勇 1王瑞耕 1蒋小梅1
作者信息
- 1. 430016 湖北 武汉,华中科技大学同济医学院附属武汉市儿童医院(武汉市妇幼保健院)心内科
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摘要
Abstract
Objective To analyze the changes and clinical significance of T peak-T end interval(Tp-Te), corrected Tp-Te(Tp-Tec), the ratio of Tp-Te and QT interval(Tp-Te/QT), and other myocardial repolarization indexes in children with noncompaction of ventricular myocardium(NVM).Methods Thirty-four hospitalized children with NVM were enrolled in our study as NVM group while another 34 healthy children were randomly selected as the control group.We compared the heart rate measured from 12 lead surface electrocardiogram, corrected QT interval(QTc), Tp-Te, Tp-Tec, Tp-Te/QT and other indexes between the two groups.Results Five(14.7%) out of the 34 NVM children were complicated by ventricular arrhythmia(4 cases of premature ventricular contraction and one case of ventricular tachycardia).The heart rate of children in NVM group was significantly higher than those in the control group, with statistically significant difference[(128.8±21.8) times/min vs.(113.1±17.5) times/min, P<0.05].There was no significant difference in either QTc or Tp-Te between the two groups[(404.8±30.9) ms vs.(402.6±21.4) ms, (76.1±17.3) ms vs.(72.1±13.9) ms, P>0.05].In NVM group, Tp-Tec was prolonged and Tp-Te/QT increased significantly if compared with those indexes in the control group, with statistically significant differences[(112.7±26.8) ms vs.(98.6±16.6) ms, (0.27±0.06) vs.(0.23±0.04), P<0.05].Conclusion The abnormalities of transmural dispersion of repolarization in children with NVM easily lead to the occurrence of ventricular arrhythmia.Because of the influence of heart rate and other factors, the predictive value of Tp-Tec and Tp-Te/QT on ventricular arrhythmia in children with NVM is higher than that of Tp-Te.关键词
心肌致密化不全/T波峰末间期/儿童Key words
noncompaction of ventricular myocardium/T peak-T end interval/children分类
医药卫生引用本文复制引用
孙东明,张勇,王瑞耕,蒋小梅..儿童心肌致密化不全Tp-Te、Tp-Tec、Tp-Te/QT的变化[J].实用心电学杂志,2017,26(3):187-189,192,4.
