required to cause: onset of arrhythmia (OA), premature ventricular beats
(PVB), ventricular tachyarrhyth-mias (VT) and lethality (L).
The electrical rhythm of the heart was read from the recorded ECG, and the number of arrhythmic events within the treatment time, including ventricular tachycardia and premature ventricular beats
, were counted.
Present PMK and ICDs have some protection algorithms to prevent PMT that usually extend PVARP after premature ventricular beats
or after a sequence stimulated ventricle--sensed atrium at high rate with fixed VA interval.
Both primary ventricular fibrillation (VF) and premature ventricular beats
(PVCs), especially R-on-T beats, occur during the early phase of MI, when heterogeneity of electrical activity is present.
6) have reported that QT interval above 600 ms and premature ventricular beats
on electrocardiogram (ECG) seem to indicate an increased risk for the development of polymorphic ventricular tachycardia in a patient with atrioventricular block (AVB) (6).