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Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
28:13

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation

Published on: February 26, 2013

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Catheter Ablation of Atrial Fibrillation in Patients With Functional Mitral Regurgitation and Left Ventricular

Jin-Tao Wu1,2, Junaid A B Zaman2, H Yakup Yakupoglu3

  • 1Heart Centre of Henan Provincial People's Hospital, Central China Fuwai Hospital, Central China Fuwai Hospital of Zhengzhou University, Zhengzhou, China.

Frontiers in Cardiovascular Medicine
|December 31, 2020
PubMed

Insights

Catheter ablation effectively treats atrial fibrillation (AF) in patients with functional mitral regurgitation (MR) and left ventricular systolic dysfunction (LVSD). The procedure improves MR severity and cardiac remodeling, even if multiple ablations are needed.

Area of Science:

  • Cardiology
  • Electrophysiology
  • Heart Failure Management

Background:

  • Efficacy of catheter ablation for atrial fibrillation (AF) in patients with functional mitral regurgitation (MR) and left ventricular (LV) systolic dysfunction (LVSD) remains unclear.
  • Investigating AF ablation's impact on MR severity and cardiac reverse remodeling is crucial for this patient group.

Purpose of the Study:

  • To determine the efficacy of catheter ablation for AF in patients with functional MR and LVSD.
  • To assess the effects of AF ablation on MR severity and cardiac reverse remodeling in this population.

Main Methods:

  • Retrospective study of 54 patients with functional MR undergoing AF ablation.
  • Comparison between patients with LVSD (n=21) and normal LV function (n=33).
  • Primary outcomes: freedom from recurrent atrial tachyarrhythmia (ATa), MR severity, LA and LV remodeling.

Main Results:

  • No significant difference in freedom from recurrent ATa between LVSD and normal LV function groups post-ablation.
  • Significant reduction in MR severity, LA size, and LV end-systolic dimension post-ablation.
  • Significant improvement in LV ejection fraction observed in patients with LVSD after restoring sinus rhythm.

Conclusions:

  • Catheter ablation is a viable treatment for AF in patients with functional MR and LVSD.
  • The procedure leads to significant cardiac reverse remodeling and improved LV function.
  • Multiple ablation procedures may be necessary for optimal outcomes.

Keywords:
atrial fibrillationcatheter ablationfunctional mitral regurgitationheart rhythmsystolic dysfunction

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