CARDIAC PACING DYNAMICS IN SICK SINUS SYNDROME

This groundbreaking study investigates the complex relationship between atrial pacing parameters and Atrial High-Rate Episodes (AHREs) in Sick Sinus Syndrome patients with dual-chamber pacemakers. Through a comprehensive 2-year prospective analysis of 60 patients, the research reveals critical temporal dynamics: an initial inverse correlation between atrial pacing percentage and AHREs during the first 3 months, alongside significant associations between mode-switch episodes, premature atrial beats, and AHREs in the initial 6 months. Notably, these relationships diminish over time, emphasizing the crucial importance of early post-implantation monitoring. The findings provide essential insights for clinical management strategies, highlighting the effectiveness of mode-switching algorithms and the evolving nature of pacing dynamics in SSS patients. This work significantly advances our understanding of cardiac device management and offers valuable guidance for optimizing patient care in this specialized population.