Oversensing by Single-Chamber Pacemakers: Mechanisms, Diagnosis, and Treatment

Impact of Pacing and High-Pass Filter Settings on Ventricular Bipolar Electrograms in Implantable Cardioverter Defibrillator Systems - Implication of Predictors for Inappropriate Therapy Caused by Oversensing of Repolarization Electrograms -

“…3 Barold et al also demonstrated that T wave oversensing occurs more often after paced ventricular beats than after spontaneous beats. 11 In our present study, the R wave amplitude during DDD pacing was significantly lower than that during the other conditions. In contrast, the T wave amplitude during DDD pacing had no significant difference compared to the other conditions.…”

Development of ventricular fibrillation after implantation of a biventricular implantable cardioverter defibrillator: what is the mechanism?

“…A number of mechanisms may be responsible for TWO, including electrolyte abnormalities, drug use, and changes in sympathetic tone, among others . Also, TWO occurs more often after paced beats than spontaneous beats, and this has been attributed to polarization voltage . Seegers et al.…”

Partial Inhibition of Ongoing Antitachycardia Pacing Sequence Due to T‐Wave Oversensing

“…T‐wave oversensing occurs more often after paced ventricular beats than after intrinsic beats, probably due to a combined voltage originating from the repolarization phase and the superimposed electrode polarization voltage 3,4 . Several solutions have been proposed to this problem so far, including sensitivity threshold increase, or reprogramming longer refractory periods.…”