QT dispersion does not represent electrocardiographic interlead heterogeneity of ventricular repolarization.

@article{Malik2000QTDD,
  title={QT dispersion does not represent electrocardiographic interlead heterogeneity of ventricular repolarization.},
  author={Marek Malik and Burak Açar and Y Q Gang and Yee Guan Yap and Katerina Hnatkova and A. John Camm},
  journal={Journal of cardiovascular electrophysiology},
  year={2000},
  volume={11 8},
  pages={835-43}
}
INTRODUCTION QT dispersion (QTd, range of QT intervals in 12 ECG leads) is thought to reflect spatial heterogeneity of ventricular refractoriness. However, QTd may be largely due to projections of the repolarization dipole rather than "nondipolar" signals. METHODS AND RESULTS Seventy-eight normal subjects (47+/-16 years, 23 women), 68 hypertrophic… CONTINUE READING