Duration of reverse remodeling response to cardiac resynchronization therapy: Rates, predictors, and clinical outcomes

Approximately 15% of responders were brief responders. Prior ventricular tachyarrhythmia, a non-LBBB pattern, and HF hospitalization were independent predictors of a brief response. Brief response was significantly associated with decreased risk of all-cause death compared with NRs and had a tendency toward increased risk of all-cause death compared with long-lasting responders.