Reddy, "Regional variation of gap junction conductance on reentrant arrhythmia
," Biomedical sciences instrumentation, vol.
The AV node conducts the ventricular-paced beat or a premature ventricular contraction (PVC) back (ie, retrograde) to the atrium and depolarizes the atrium before the next atrial-paced beat, the impulse can then trigger the pacemaker to repeatedly pace the ventricle, thereby generating a reentrant arrhythmia
circuit known as PMT or endless-loop tachycardia.
Altered conduction and repolarization is the basis of the reentrant arrhythmias
thus indicating association of prolonged QT interval with arrhythmogenesis78.
Our results are significant because altered electrical conduction is a mechanism of reentrant arrhythmias
(Roden 1996), which can cause tachycardia and fibrillation in both the atria and ventricles.
Most commonly chronic CAD causes reentrant arrhythmias
and ACS causes non-reentrant arrhythmias (1, 2, 24-26).