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健康老年人QT间期和离散度的纵向观察

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摘要 目的观察健康老年人伴随老龄化QT间期和离散度的变化。方法回顾分析我区退休老年人4年前后的常规体检,选择健康老年人112例,年龄70~81岁,平均(75.2±3.6)岁;其中,男性47例,女性56例。12导联心电图记录采用50mm/s,增益10mm/mV。分别测量基年和第四年的R-R间期,最大QT间期(QTmax),最小QT间期(QTmin),并计算QTd=QTmax-QTmin,QTcd=QTcmax-QTcmin。结果基年与第四年心电图的QT间期、校正QT间期、QT离散度和校正QT离散度,分别为(369±18)ms、(412.2±22)ms、(33.2±12.5)ms、(34.6±13.2)ms和(372±21)ms、(420±16)ms、(45.1±11.1)ms、(45.8±13.7)ms。二者比较,最大QT间期无显著变化(〉0.05),而最大校正QT间期,QT离散度和校正QT离散度有显著变化(〈0.05)。结论健康老年人4年的跟踪观察结果显示QT离散度、校正QT离散度存在显著的纵向变化。
作者 沈琳 胡伟国
出处 《中国医药指南》 2011年第21期279-280,共2页 Guide of China Medicine
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参考文献11

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