Prolongation of cardiac repolarization
by arsenic trioxide.
It represents an increased heterogeneity of ventricular repolarization
on a beat-to-beat basis which may provide a substrate for re-entry.
Electrocardiographic ventricular repolarization
(QT interval) parameters have been used as predictors of increased risk of ventricular arrhythmias and sudden death in patients with SCI (Akbal et al.
Identifying Drug-Induced Repolarization
Abnormalities from Distinct ECG Patterns in Congenital Long QT Syndrome.
This study demonstrates that ventricular depolarization and repolarization
are affected by glycemic variability in type 2 diabetic patients Robinson et al.
Generally, the cardiac activity is separated into two parts, depolarization and repolarization
indicating contraction and relaxation of heart muscle.
As the patient's serum potassium returned to normal, his heart rate slowed, P waves became more visible, QRS complexes narrowed, and the repolarization
changes of hyperkalemia disappeared (Figure 3).
sup] Did the patients undergo long-term electrocardiogram recordings, and in particular were loop recorders implanted to see if any of the patients had a tendency to develop prolonged QT-interval, early repolarization
, or ventricular arrhythmias?
It is thought that QT dispersion reflects regional differences in ventricular repolarization
may be defined using QT interval, QT dispersion, and T wave measurements.
This may be due to autonomically induced repolarization
Early afterdepolarizations (EADs) are triggered before the completion of repolarization
 and associated with polymorphic ventricular tachyarrhythmia for long QT syndrome patients .