Ventricular Pace Suppression Function: Prophylaxing from Iatrogenic Dyssynchrony

Antonis S Manolis, Evangelia Bei, Christos Antoniou, Christos Stathopoulos


A patient with an implanted dual-chamber pacemaker (DDDR) for sick sinus syndrome had a pulse generator exchange due to battery depletion. Apropos with the procedure, it was noted that the patient had continuous ventricular pacing via a pacing lead located at the right ventricular apex. In order to avoid possible deleterious effects of the iatrogenic dyssynchrony conferred by this kind of pacing, the algorithm of ventricular pace suppression function was activated in the new device that practically led to functional AAI pacing, deemed a more physiologic mode of pacing that could prevent the potential harmful effects of right ventricular apical pacing. Rhythmos 2018;13(3):59-61.


sick sinus syndrome; right ventricular apical pacing; iatrogenic left bundle branch block; ventricular dyssynchrony; left ventricular dysfunction; pacemaker-induced cardiomyopathy

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