The present article is the fourth in a series of 6 documents focused on providing current
guidelines for the standardization and interpretation of the electrocardiogram (ECG). The …

QT dispersion was originally proposed to measure spatial dispersion of ventricular recovery
times. Later, it was shown that QT dispersion does not directly reflect the dispersion of …

Reduced rainfall increases the risk of forest dieback, while in return forest loss might
intensify regional droughts. The consequences of this vegetation–atmosphere feedback for …

This paper reviews the current status of principal component analysis in the area of ECG
signal processing. The fundamentals of PCA are briefly described and the relationship …

Aims The aim of this study was to assess the prognostic importance of the spatial QRS-T
angle for fatal and non-fatal cardiac events. Methods and results Electrocardiograms (ECGs) …

The long and growing list of non-antiarrhythmic drugs associated with prolongation of the QT
interval of the electrocardiogram has generated concern not only for regulatory interventions …

Background In the canine wedge preparation, the interval from the peak to the end of the T
wave (TpTe) reflects transwedge heterogeneities. Increase of ventricular dispersion of action …

Background—Previous population studies have found an association between
electrocardiographic T-wave morphology parameters and cardiovascular mortality, but their …

Patients with specific neurological, psychiatric or cardiovascular conditions are at enhanced
risk of cardiac arrhythmia and sudden death. The neurogenic mechanisms are poorly …

Most textbook knowledge on ventricular repolarization is based on animal data rather than
on data from the in vivo human heart. Yet, these data have been extrapolated to the human …