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Updated: May 29, 2026
Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
Published on: February 26, 2013
Non-surgical left atrial appendage closure for stroke prevention in atrial fibrillation
Paul A Friedman1, David R Holmes
1Division of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota, USA. pfriedman@mayo.edu
Insights
Non-surgical left atrial appendage closure offers a promising alternative for preventing strokes in atrial fibrillation (AF) patients, especially the elderly. This approach excludes the left atrial appendage (LAA), reducing stroke risk without long-term anticoagulant complications.
Area of Science:
- Cardiology
- Interventional Cardiology
- Stroke Prevention
Background:
- Atrial fibrillation (AF) significantly increases stroke risk, particularly in elderly patients.
- The left atrial appendage (LAA) is a common source of thrombi and thromboembolism in AF.
- Systemic anticoagulation, while effective, carries significant bleeding risks and adherence challenges.
Purpose of the Study:
- To review current non-surgical left atrial appendage closure strategies for stroke prevention in atrial fibrillation.
- To discuss the strengths and limitations of various percutaneous LAA exclusion methods.
- To highlight LAA exclusion as an alternative to long-term anticoagulation.
Main Methods:
- Review of percutaneous left atrial appendage exclusion techniques.
- Categorization of nonsurgical approaches into transseptal devices, percutaneous epicardial, and hybrid methods.
- Evaluation of clinical, physiological, and anatomical considerations for approach selection.
Main Results:
- Non-surgical LAA exclusion provides an alternative to anticoagulation for stroke prevention in AF.
- Multiple percutaneous strategies are available, allowing for patient-specific selection.
- These methods mitigate the risks associated with long-term anticoagulant therapy.
Conclusions:
- Non-surgical LAA closure is a viable and increasingly attractive option for stroke prevention in nonvalvular AF.
- It is particularly beneficial for elderly AF patients who may not tolerate anticoagulation.
- LAA exclusion eliminates long-term bleeding risks and adherence issues associated with anticoagulants.
Abstract:
Non-Surgical Left Atrial Appendage Closure for Stroke Prevention in Atrial Fibrillation. The most feared complication associated with atrial fibrillation (AF) is stroke, the risk of which increases with advanced age. Because of its complex anatomy and diminished blood flow during AF, the left atrial appendage (LAA) has been a common site of left atrial thrombi and presumed source of thromboembolism. Systemic anticoagulation to treat what may be largely a localized phenomenon is associated with significant complications. Newer anticoagulation agents hold great promise in facilitating dosing and eliminating drug and food interactions, but do not eliminate bleeding risk. These challenges have led to interest in mechanical exclusion of the LAA as a means of preventing thromboembolism in AF. Although surgery permits greater visualization and management of complications, the potential morbidity has limited adoption in often-frail elderly patients. In this paper, we review the current state of percutaneous left atrial exclusion for stroke prevention in AF, and the strengths and limitations of each of these strategies. The nonsurgical approaches to excluding the LAA from the central circulation can be divided into 3 broad categories: transseptally placed devices, percutaneous epicardial approach, and hybrid approaches. The availability of several approaches will allow physician selection of the optimal approach for a given patient based on clinical, physiological, and anatomical considerations. LAA exclusion stands to become an increasingly attractive option for patients with nonvalvular AF because it can be offered to elderly AF patients, and eliminates the long-term cumulative bleeding risks and adherence challenge of anticoagulants.
