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ＱＴ离散度（ＱＴｄ）是指心电图各导联间ＱＴ时限变异的程度，反映各部分心室肌内复极化不均匀，代表心室电的不稳定性。Ｐｙｅ等发现，急性心肌梗塞（ＡＭＩ）后ＱＴ离散度（ＱＴｄ）与心功能呈负相关。因此ＱＴｄ可以预测ＡＭＩ后心功能状况［１］。本文分析我院１９９...
QT Dispersion (QTd) is the extent of QT variation between ECG leads, which reflects the inhomogeneous repolarization of ventricular myocardium in each part and represents the instability of ventricular electrical. Pye et al found that QTd was negatively correlated with cardiac function after acute myocardial infarction (AMI). Therefore, QTd can predict cardiac function after AMI [1]. This analysis of our hospital 199 ...