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Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing
12:45

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing

Published on: December 11, 2017

Cardiac resynchronization therapy and atrial fibrillation

Ganesh S Kamath1, Jonathan S Steinberg

  • 1Al-Sabah Arrhythmia Institute and Division of Cardiology, St. Luke's and Roosevelt Hospitals, Columbia University College of Physicians and Surgeons, New York, NY10025 , USA

Cardiology Journal
|January 9, 2009
PubMed

Insights

Cardiac resynchronization therapy (CRT) improves heart failure (HF) outcomes. For patients with atrial fibrillation (AF), atrioventricular junction ablation with permanent pacing ensures consistent CRT delivery, improving results.

Area of Science:

  • Cardiology
  • Electrophysiology
  • Heart Failure Management

Background:

  • Cardiac resynchronization therapy (CRT) is a key treatment for end-stage heart failure (HF).
  • Atrial fibrillation (AF) complicates 15-50% of HF cases, worsening prognosis.
  • AF can hinder effective CRT by competing with biventricular pacing, especially during rapid heart rates.

Purpose of the Study:

  • To evaluate strategies for optimizing CRT delivery in heart failure patients with atrial fibrillation.
  • To assess the efficacy of atrioventricular junction ablation and permanent pacing versus catheter ablation of AF.

Main Methods:

  • Review of current literature and device algorithms for CRT in AF patients.
  • Analysis of outcomes associated with atrioventricular junction ablation and permanent pacing.
  • Consideration of catheter ablation of AF as an alternative strategy.

Main Results:

  • Atrioventricular junction ablation with permanent pacing effectively eliminates conducted beat interference, ensuring complete biventricular capture.
  • This strategy is associated with improved clinical outcomes in HF patients with AF.
  • Catheter ablation of AF offers a potential method for rhythm control.

Conclusions:

  • Atrioventricular junction ablation with permanent pacing is a viable strategy to optimize CRT in heart failure patients with atrial fibrillation.
  • Further randomized clinical trials are needed to define optimal indications for CRT in this complex patient group.

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