In the remaining studies, widened QRS complexes were most commonly attributed ... time from last drug exposure to first noted electrocardiogram abnormality or clinical evidence of suspected ...

1a). The electrical events during the action potential, including initial firing (depolarization, corresponding to the QRS complex in the ECG) and subsequent return to the resting state ...

These ECG voltage attenuations are of extracardiac mechanism, and impact the amplitude of QRS complexes, P-waves, and T-waves, occasionally resulting also in shortening of the QRS complex and QT ...

The regular arrhythmia occurring at the beginning of the electrocardiogram was identified as ventricular bigeminy. Single ventricular premature complexes (VPCs), as well as pairs and triplets of ...