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Updated: Mar 16, 2026
Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
Published on: February 26, 2013
[Catheter-based closure of the left atrial appendage : Stroke prevention in atrial fibrillation]
C Skurk1,2, D M Leistner1,2, J-W Park1
1Klinik für Kardiologie, Charite - Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12003, Berlin, Deutschland.
Insights
Left atrial appendage closure is a safe and effective stroke prevention method for nonvalvular atrial fibrillation patients. This minimally invasive procedure offers an alternative for those at high risk of bleeding on anticoagulation therapy.
Area of Science:
- Cardiology
- Interventional Cardiology
- Stroke Prevention
Background:
- Over 90% of thrombi in nonvalvular atrial fibrillation (NVAF) patients originate in the left atrial appendage (LAA).
- Catheter-based LAA closure has emerged as a key strategy for stroke prevention in NVAF.
- Preliminary trials show promising efficacy and safety compared to warfarin anticoagulation.
Purpose of the Study:
- To review the efficacy and safety of LAA closure for stroke prevention in NVAF.
- To discuss current clinical practice, guideline recommendations, and data from studies and registries.
Main Methods:
- Review of randomized clinical studies and registries.
- Analysis of procedural improvements and device refinements.
- Evaluation of clinical data for patients with high ischemic and bleeding risks.
Main Results:
- LAA closure demonstrates significant improvements in safety and efficacy.
- The procedure is increasingly utilized for NVAF patients unsuitable for long-term anticoagulation.
- Growing evidence supports LAA closure as a viable alternative to warfarin.
Conclusions:
- Catheter-based LAA closure is a well-established and evolving option for stroke prevention in NVAF.
- It offers a safe alternative for patients with high bleeding risk concerns.
- Continued research and procedural refinement enhance its clinical utility.
Abstract:
In patients with nonvalvular atrial fibrillation, >90 % of thrombi are detected in the left atrial appendage (LAA). In particular these observations have resulted in the development of catheter-based LAA closure as an approach for stroke prevention in patients with nonvalvular atrial fibrillation in recent years. A preliminary randomized trial provided promising data with respect to efficacy and safety of this approach as compared to anticoagulation with warfarin. The safety of the procedure has been significantly improved in recent years due to procedural experience and refinement of implanted devices. In current clinical practice, this approach is particularly used for patients with nonvalvular atrial fibrillation, a significant ischemic risk (CHA2DS2-VASc score ≥2), and a high bleeding risk, i. e., in patients in whom there are relevant concerns with respect to long-term anticoagulation. The present article discusses the data from randomized clinical studies and registries, the present guideline recommendations, and the practical clinical use of LAA closure for stroke prevention.
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