检索历史 清除

目的 探讨心脏多普勒超声Tei指数在病毒性心肌炎患儿左心室功能评价中的价值.方法 根据1994年修订的病毒性心肌炎诊断标准,选择34例临床诊断心肌炎患儿作为病例组,30例健康儿童作为对照组,分别测Tei指数,左心室射血分数(EF)、二尖瓣舒张早期血流速度峰值(VE),二尖瓣舒张晚期血流速度峰值(VA)及其比值(VE/VA).结果 ①病例组患儿Tei指数、EF、VE/VA与对照组相比三项指标均具有显著差异性(均为P＜0.01);②病例组内Tei指数阳性率(82.35%)显著高于EF(29.41%)、VE/VA(52.94%)阳性率(均为P＜0.05).结论 Tei指数与EF、VE/VA相比,对心室功能的评估具有更高的灵敏性,并且具有操作简便、灵敏度高、重复性好等优点.

Objective To explore the value of Doppler Tei index in assessing the left ventricular func-tion of children with viral myocarditis.Methods According to the viral myocarditis diagnosis criterion modified in 1994,34 cases who met the clinical viral myocarditis diagnosis and 30 healthy children were studied by echocardiography.The Tei index,the left ventricle ejection fraction (EF),and the early filling velocity of the E wave(VE) and peak A wave velocity (VA) of the mitral valve and their odds (VE/VA),were all acquired and analyzed.Results ①the Tei-index、the EF and the VE/VA of the children with viral myocarditis were significantly higher than those in the control subjects(P ＜ 0.01);②in the group of children with viral myocarditis,the Teiindex positive rate (82.35 %) was higher than the positive rate of EF (29.41%) or VE/VA (52.94%) (P ＜0.05).Conclusion The Tei-index is more sensitive than EF or VE/VA in the evaluation of the cardiac function and has the advantage of convenience,high sensibility and good replication and so on.