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The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
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Left Atrial Appendage Occlusion: British Cardiovascular Intervention Society and British Heart Rhythm Society

Tim R Betts1, Patrick A Calvert2, Lee N Graham3

  • 1Cardiac Electrophysiology, Oxford University Hospitals NHS Foundation Trust Oxford, UK.

Arrhythmia & Electrophysiology Review
|March 28, 2024
PubMed

Insights

Percutaneous left atrial appendage occlusion offers a stroke risk reduction strategy for atrial fibrillation patients unsuitable for anticoagulation. This statement details evidence, indications, and best practices for the procedure.

Area of Science:

  • Cardiology
  • Medical Devices
  • Interventional Procedures

Background:

  • Atrial fibrillation (AF) poses a significant stroke risk, especially in patients contraindicated for anticoagulation.
  • Percutaneous left atrial appendage (LAA) occlusion is an alternative strategy to reduce thromboembolic events.
  • The procedure has gained regulatory approval and is supported by international trial data.

Purpose of the Study:

  • To summarize the evidence supporting LAA occlusion.
  • To outline current clinical indications for LAA occlusion.
  • To provide consensus on best practices for LAA occlusion procedures.

Main Methods:

  • Review of international randomized trials and registries.
  • Analysis of National Institute for Health and Care Excellence (NICE) and NHS England guidelines.
  • Consensus-based recommendations for procedural planning, execution, and follow-up.

Main Results:

  • LAA occlusion is an established procedure for stroke risk reduction in select AF patients.
  • Evidence supports its use, particularly for those who cannot tolerate anticoagulation.
  • Guidelines exist for its safe and effective implementation.

Conclusions:

  • LAA occlusion is a viable option for stroke prevention in specific atrial fibrillation populations.
  • Standardized approaches to pre-procedure planning, implantation, and post-procedure care are essential.
  • Establishing procedural volume standards and multidisciplinary team involvement is recommended for optimal outcomes.

Keywords:
AFLeft atrial appendageNICE guidanceanticoagulationstroke

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