Abstract 19187: Predictors of Right Ventricular Pacing in ICD Recipients Without Baseline Pacing Needs

Introduction: Identifying ICD recipients who will develop a need for right ventricular pacing (RVP) would inform appropriate device selection, specifically to identify patients most suitable for dual chamber pacemakers or who might be candidates for subcutaneous devices, which do not provide pacing. Objective: To determine predictors of RVP in patients who did not have a pacing indication at the time of initial ICD implant. Methods: A limited dataset of patients undergoing first-time single (n=1635) chamber ICDs (programmed VVI mode at 40 bpm) implanted from 2006 to 2010 was derived from Boston Scientific’s ALTITUDE database and linked to the NCDR® ICD Registry. RVP burden was calculated from remote monitor transmissions. The outcome was defined as development of >5% RVP averaged over any continuous 90-day period between 6 and 24 months after ICD implant. The study population was randomly divided into training and validation cohorts (70/30) and characteristics associated with RVP were identified using log...