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1985年Campbell等发现不同导联间QT间期的差异有其规律性,提出了QT离散度(QT disper-sion)这个概念。1990年由Day等首先证实QT离散度具有重要临床价值。近年来许多研究表明,急性心肌梗死(AMI)患者体表心电图存在QT离散度(QTd)增大。心电图这种QT离散度增加反映了
In 1985, Campbell et al. Found that there is regularity in the differences of QT intervals among different leads, and proposed the concept of QT disper-sion. It was first confirmed by Day et al in 1990 that QT dispersion has important clinical value. In recent years, many studies have shown that patients with acute myocardial infarction (AMI) surface ECG QT dispersion (QTd) increased. This increase in ECG QT dispersion is reflected