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September 23, 2025European Heart JournalOpen Access

Left bundle branch area pacing vs right ventricular pacing for atrioventricular block: the MELOS RELOADED study

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Authors

MJMarek JastrzębskiGKGrzegorz KiełbasaÓCÓscar Cano

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Overview

Registry study compares long-term mortality in patients with atrioventricular block, highlighting survival advantages of left bundle branch area pacing.

Key Points

  • LBBAP shows an 11.8% survival benefit over RVP at four years, significantly reducing all-cause mortality.
  • Patients treated with LBBAP demonstrated a hazard ratio of 0.53, indicating substantially lower mortality risk.
  • This multicenter study utilized propensity score matching among 3,382 patients to ensure balanced comparison.
  • Findings suggest confirmation of left bundle branch capture is vital for maximizing benefits of LBBAP in AVB patients.

Cite This Study

Jastrzębski et al. (2025) studied this question.

synapsesocial.com/papers/68d4409f713b0b5dfea7fa76https://doi.org/10.1093/eurheartj/ehaf699
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Effect of left bundle branch area pacing on cardiac remodeling and function: propensity score matching with right ventricular pacing2025
  2. 2Clinical outcomes of left bundle branch area pacing versus right ventricular pacing in patients with preserved ejection fraction2026
  3. 3Two-year outcomes of left bundle branch area pacing versus traditional right ventricular pacing in middle-aged adults: a registry-based trial2025 · 23 citations
  4. 4Left Bundle Branch Area Pacing Improves Left Atrial Outcomes in Pacemaker-Dependent Patients: A Prospective Cohort Study Using Speckle Tracking and Three-Dimensional Echocardiography.2025 · 1 citations
  5. 5Clinical utilization of current pacemakers for left bundle branch area pacing2026