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Updated: Feb 12, 2026

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

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Real World Outcomes of Left Atrial Appendage Occlusion

Apostolos Tzikas1, Darren Mylotte2, Martin Bergmann3

  • 1AHEPA University Hospital, Thessaloniki, Greece.

Interventional Cardiology (London, England)
|March 29, 2018
PubMed

Insights

Percutaneous left atrial appendage occlusion (LAAO) offers a stroke prevention alternative for non-valvular atrial fibrillation (AF) patients. Real-world data suggests LAAO is effective in patients ineligible for oral anticoagulation therapy, but requires further randomized trial confirmation.

Area of Science:

  • Cardiology
  • Medical Devices
  • Stroke Prevention

Background:

  • Atrial fibrillation (AF) increases stroke risk, particularly in patients ineligible for oral anticoagulation (OAC).
  • Percutaneous left atrial appendage occlusion (LAAO) is an emerging device-based therapy for stroke risk reduction in AF.
  • The Watchman device is FDA-approved for LAAO in OAC-eligible patients based on clinical trials.

Purpose of the Study:

  • To evaluate the efficacy and safety of LAAO in patients with non-valvular AF who are ineligible for OAC therapy.
  • To assess the real-world clinical outcomes of LAAO in this high-risk patient population.

Main Methods:

  • Review of observational studies and real-world clinical data on LAAO in OAC-ineligible patients.
  • Analysis of clinical outcomes, including stroke prevention and safety, in patients undergoing LAAO.

Main Results:

  • Observational studies indicate favorable clinical outcomes for LAAO in OAC-ineligible patients.
  • LAAO provides a viable treatment option for non-valvular AF patients with limited therapeutic choices.

Conclusions:

  • LAAO demonstrates promising results for stroke prevention in OAC-ineligible AF patients.
  • Randomized clinical trials are necessary to confirm these findings and establish LAAO as a standard of care in this population.

Keywords:
Atrial fibrillationclosuredevicepreventionstroke

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