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目的 :探讨 QTd对猝死的预测价值.方法 :分析 2 3例发生猝死的冠心病患者和 34例住院冠心病患者的 QT离散度及心率校正 QT离散度.结果 :猝死组 QTd明显高于对照组 ,P“,”Objective:To evaluate the prognosis evalution effects of QTd on sudden death.Methods:The electrocardiograms recorded in 57 patients including 23 patients with sudden death and 34 patients with CAD were analyzed.QTd and heart ratecorrected QT dispersion(QTcd) were gauged and calculated.Results:The QTd and QTcd of the patients with sudden death were remarkably longer than those with CAD( P