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体表心电图不同导联之间ＱＴ间期的差异—ＱＴ离散度(ＱＴｄ) ,反映心室复极的不均一性。心肌梗死后ＱＴｄ发生改变 ,ＱＴｄ增大是致命性心律失常和猝死的危险因素[1] 。本文对 10 8例ＡＭＩ患者的心电图进行分析 ,旨在探讨ＱＴｄ和ＱＴｃｄ对ＡＭＩ预后的影响及意义。1 资料
Differences in QT interval between different leads on the surface ECG-QT dispersion (QTd), reflecting inhomogeneity of ventricular repolarization. QTd changes after myocardial infarction, QTd increase is a risk factor for fatal arrhythmia and sudden death [1]. In this paper, 108 cases of AMI in patients with ECG analysis to explore QTd and QTcd on the prognosis of AMI and its significance. 1 data