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Updated: Jun 16, 2026

The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
Published on: February 28, 2012
Transcatheter Structural Heart Disease Interventions and Concomitant Left Atrial Appendage Occlusion: A State of the
Kyriakos Dimitriadis1, Nikolaos Pyrpyris1, Konstantinos Aznaouridis1
1First Department of Cardiology, School of Medicine, National and Kapodistrian University of Athens, Hippokration General Hospital, Athens, Greece.
Insights
Combining left atrial appendage occlusion (LAAO) with structural heart disease (SHD) procedures offers a safe, single-visit approach to prevent strokes in atrial fibrillation (AF) patients. This strategy aims to reduce bleeding risks associated with long-term anticoagulation.
Area of Science:
- Cardiology
- Interventional Cardiology
- Structural Heart Disease
Background:
- Atrial fibrillation (AF) is a common arrhythmia in valvular heart disease patients, increasing stroke risk.
- Anticoagulation for AF stroke prevention can lead to bleeding complications, especially in high-risk individuals.
- Left atrial appendage occlusion (LAAO) is an effective stroke prevention method in AF, mitigating bleeding risks.
Purpose of the Study:
- To review the safety and efficacy of combined structural heart disease (SHD) procedures with LAAO.
- To explore the potential of a "1-stop shop" approach for managing AF and SHD concurrently.
- To identify current evidence, indications, and future directions for combined SHD+LAAO procedures.
Main Methods:
- Review of existing clinical evidence and indications for combined SHD+LAAO procedures.
- Analysis of safety and efficacy data from combined interventions in conditions like aortic stenosis, mitral regurgitation, and atrial septal defects.
- Evaluation of the feasibility of performing SHD procedures and LAAO in a single session.
Main Results:
- Combined SHD+LAAO procedures can be safely performed without increased adverse events.
- This combined approach has the potential to limit bleeding risks compared to traditional anticoagulation.
- Evidence supports the efficacy of combined procedures in preventing stroke events in AF patients.
Conclusions:
- Combining LAAO with index SHD procedures is a promising strategy for stroke prevention in AF patients.
- The "1-stop shop" approach offers a safe and potentially more effective management pathway.
- Further research is needed to fully elucidate the long-term benefits and optimal application of these combined procedures.
Abstract:
Atrial fibrillation (AF) is the most common arrhythmia in patients with valvular heart disease, and it can be associated with adverse patient outcomes. However, the need for anticoagulation to counterbalance AF-associated stroke risk may further lead to suboptimal outcomes via increasing bleeding events, especially in high-risk individuals. Because the vast majority of thrombi occur in the left atrial appendage, left atrial appendage occlusion (LAAO) is an established procedure for preventing ischemic stroke in patients with AF, while limiting anticoagulation-related bleeding events. Thus, the concept of combining an index procedure for structural heart disease (SHD) with LAAO seems promising for preventing future stroke events. A combined procedure has been described in aortic stenosis (transcatheter aortic valve implantation + LAAO), mitral regurgitation (transcatheter edge-to-edge repair + LAAO), and atrial septal defects (patent foramen ovale/atrial septal defect + LAAO). Evidence shows that a combined procedure can be safely performed in a "1-stop shop" fashion, without increased rates of procedural adverse events, with the potential to limit bleeding risk and provide prophylaxis against stroke events. This review analyses indications and clinical evidence regarding the safety and efficacy of combined SHD+LAAO procedures, while also providing insights into gaps in knowledge and future directions for the evolution of this field.
Related Concept Videos
Mitral Regurgitation I: Introduction
Coronary Artery Disease II: Pathophysiology
Coronary Artery Disease IV: Preventive Measures
Acute Coronary Syndrome III: Diagnostic Studies
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