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Updated: Apr 11, 2026

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
Published on: February 26, 2013
Strategies to incorporate left atrial appendage occlusion into clinical practice
Oluseun Alli1, Samuel Asirvatham2, David R Holmes2
1Division of Cardiovascular Diseases and Department of Internal Medicine, University of Alabama, Birmingham, Alabama.
Insights
Left atrial appendage (LAA) occlusion devices, like the Watchman, offer mechanical alternatives to medical therapy for preventing strokes in atrial fibrillation patients. This guide provides essential information for establishing successful LAA occlusion programs.
Area of Science:
- Cardiology
- Medical Devices
- Interventional Cardiology
Background:
- The left atrial appendage (LAA) is a primary source of thrombus in nonvalvular atrial fibrillation (NVAF), leading to thromboembolic events.
- Medical therapy has been the long-standing treatment, but mechanical LAA occlusion is a developing alternative.
- The Watchman device represents the most studied option, recently FDA-approved for select US patients.
Purpose of the Study:
- To provide guidance for healthcare institutions and operators establishing LAA occlusion programs.
- To offer insights into optimizing patient selection, procedural techniques, and patient outcomes.
- To address the lack of current guidelines for implementing LAA occlusion therapy.
Main Methods:
- This perspective synthesizes existing data and clinical experience.
- It explores key considerations for program development and patient management.
- Focuses on practical information for successful LAA occlusion program implementation.
Main Results:
- The Watchman device has the most extensive data supporting its use in LAA occlusion.
- Successful LAA occlusion programs require careful attention to patient selection and procedural execution.
- Optimized programs aim to minimize thromboembolic events and improve patient outcomes.
Conclusions:
- LAA occlusion is a viable therapeutic option for selected NVAF patients at risk of stroke.
- Establishing comprehensive LAA occlusion programs is crucial for maximizing therapeutic benefits.
- Further guidance and standardization are needed to support the widespread adoption of LAA occlusion therapy.
Abstract:
The left atrial appendage (LAA) has been identified as a predominant source of thrombus formation leading to significant thromboembolic events in patients with nonvalvular atrial fibrillation. Medical therapy to eliminate thrombus formation in the LAA has been the standard of care for several decades, but mechanical approaches designed to exclude the LAA from the circulation have recently been developed. The largest body of randomized and nonrandomized data to date has been for the Watchman device (Boston Scientific, Natick, Massachusetts), which was recently approved by the Food and Drug Administration for selected patients in the United States. There are no current guidelines or guidance for institutions and operators looking to become involved in this therapy. This perspective is aimed at exploring these issues and providing necessary information and guidance to these programs and operators to help ensure a successful launch of a LAA occlusion program and optimize patient selection, procedural performance, and outcome.
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