Summary

This article presentS new data from the Biventricular Versus Right Ventricular Pacing in Heart Failure Patients With Atrioventricular Block trial [BLOCK HF; NCT00267098], showing that biventricular (BiV) pacing is associated with better clinical outcomes, improved patient quality of life, and heart failure (HF) status. Previous reports from BLOCK HF showed that BiV pacing was superior to right ventricular pacing and led to a significant reduction in mortality, HF-related urgent care, and the risk of developing a significant increase in left ventricular end systolic volume index [Curtis AB et al. N Engl J Med 2013].