How to Improve Cardiac Resynchronization Therapy Benefit in Atrial Fibrillation Patients: Pulmonary Vein Isolation (and Beyond)

Card Electrophysiol Clin. 2015 Dec;7(4):755-64. doi: 10.1016/j.ccep.2015.08.007.

Abstract

Although cardiac resynchronization therapy (CRT) is an important treatment of symptomatic heart failure patients in sinus rhythm with low left ventricular ejection fraction and ventricular dyssynchrony, its role is not well defined in patients with atrial fibrillation (AF). CRT is not as effective in patients with AF because of inadequate biventricular capture and loss of atrioventricular synchrony. Both can be addressed with catheter ablation of AF. It is still unclear if these therapies offer additive benefits in patients with ventricular dyssynchrony. This article discusses the role and techniques of catheter ablation of AF in patients with heart failure, and its application in CRT recipients.

Keywords: Atrial fibrillation; Cardiac resynchronization therapy; Catheter ablation; Heart failure; Pulmonary vein ablation; Triggers.

Publication types

  • Review

MeSH terms

  • Anti-Arrhythmia Agents / therapeutic use
  • Atrial Fibrillation / mortality*
  • Atrial Fibrillation / surgery*
  • Cardiac Resynchronization Therapy / mortality
  • Cardiac Resynchronization Therapy / statistics & numerical data*
  • Catheter Ablation / mortality
  • Catheter Ablation / statistics & numerical data
  • Combined Modality Therapy / mortality
  • Combined Modality Therapy / statistics & numerical data
  • Comorbidity
  • Evidence-Based Medicine
  • Heart Conduction System / surgery
  • Heart Failure / mortality*
  • Heart Failure / prevention & control*
  • Humans
  • Prevalence
  • Pulmonary Veins / surgery*
  • Risk Factors
  • Survival Rate
  • Treatment Outcome

Substances

  • Anti-Arrhythmia Agents