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465名正常成人QT peak离散度研究

NEW CHINESE MEDICINE(2001)

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Abstract
目的:探讨正常成人QTpeak离散度(QTpd)的正常范围及不同测量者之间的测量误差.方法:对465名正常成人以25mm/s纸速记录常规12导联同步心电图.测量QTpd及QTd并比较不同测量者之间QTpd的测量误差.结果:最小QTpeak79%出现于V2导联,最大QTpeak43%出现于V6导联、37%出现于aVF导联.465名正常成人QTpd为10ms~55ms[(30±10)ms],不同测量者之间测量结果差异无显著性,QTpd与QTd结果的相关性好.结论:465名正常成人QTpd为10ms~55 ms[(30±10)ms].12导联同步心电图测量QTpd具有简单、准确的优点.
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