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扩张型心肌病伴心衰患者跨壁复极离散度分析 被引量:3

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摘要 目的:探讨扩张型心肌病患者体表心电图QT间期、QTpeak、Tp-e(从T波顶点向等电位线作垂线的交点到T波终点的时限)的变化,探讨其可能的临床意义。方法:依据病史、症状、体征、X线及心脏超声,入选扩张型心肌病,心功能均为~级(NHYA分级)的患者72例;对照组为同期门诊健康查体者共有65例。行常规十二导联心电图检查,测量QT间期、QTpeak与Tp-e,采用Bazzett′s校正公式QTc=QT/RR1/2,QTpeakc=QTpeak/RR1/2,T(p-e)c=QTc-QTpeakc得出QTc、T(p-e)c及T(p-e)c/QTc值。Tp-e是目前唯一可从心电图间接反应TDR的指标。结果:与健康对照组比较,扩张型心肌病患者十二导联心电图QTc、T(p-e)c(TDR)及T(p-e)c/QTc明显增大。结论:扩张型心肌病患者QTc、T(p-e)c及T(p-e)c/QTc增加。
出处 《陕西医学杂志》 CAS 2011年第11期1503-1504,共2页 Shaanxi Medical Journal
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同被引文献18

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