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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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Comparison of cardiac function and structure after left atrial appendage occlusion without versus with ablation in

Zhong-Bao Ruan1, Fei Wang1, Ge-Cai Chen1

  • 1Department of Cardiology, the affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou 225300, P.R. China.

International Journal of Medical Sciences
|July 15, 2024
PubMed

Insights

Left atrial appendage occlusion (LAAO) in non-valvular atrial fibrillation (NVAF) patients significantly reduces NT-proBNP levels. However, LAAO alone does not significantly impact cardiac structure or function; improvements are attributed to combined ablation therapy.

Area of Science:

  • Cardiology
  • Medical Devices
  • Electrophysiology

Background:

  • Non-valvular atrial fibrillation (NVAF) poses risks for stroke and heart failure.
  • Left atrial appendage occlusion (LAAO) is an alternative to anticoagulation for stroke prevention in NVAF.
  • The long-term effects of LAAO on cardiac function and structure require further investigation.

Purpose of the Study:

  • To evaluate the long-term impact of LAAO on cardiac function and structure in NVAF patients.
  • To compare the outcomes of simple LAAO versus LAAO combined with ablation.

Main Methods:

  • A study involving 157 NVAF patients undergoing LAAO or combined therapy.
  • Patients were divided into simple LAAO and combined LAAO with ablation groups.
  • Cardiac structure (LAAD, LVEDD, LVESD) and function (LVEF), and NT-proBNP levels were assessed long-term.

Main Results:

  • LAAO procedures were successful with a 6.4% complication rate.
  • LAAO alone showed no significant changes in cardiac structure or function, but reduced NT-proBNP at 6 and 12 months.
  • Combined therapy demonstrated significant improvements in LAAD, LVEDD, LVESD, NT-proBNP, and LVEF.

Conclusions:

  • LAAO alone does not significantly alter cardiac structure or function in NVAF patients.
  • LAAO effectively reduces NT-proBNP levels.
  • Observed improvements in cardiac structure and function with combined therapy are primarily due to ablation, not LAAO itself.

Keywords:
ablationatrial fibrillationcardiac function.cardiac structureleft atrial appendage occlusion

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