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Updated: Jul 31, 2026

The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
Published on: February 28, 2012
Percutaneous Left Atrial Appendage Closure: Supporting Evidence, Limitations and Future Directions
Giuseppe Imperatore1, Stijn Lochy2, Mohamed Ben Yedder3
1Health Science Interdisciplinary Centre, Sant'Anna School of Advanced Studies, 56127 Pisa, Italy.
Abstract:
Percutaneous Left Atrial Appendage Occlusion (LAAO) has emerged as a promising intervention for stroke prevention in patients with atrial fibrillation who are contraindicated for long-term anticoagulation therapy. Despite its growing adoption, a comprehensive review of the LAAO procedure is essential to consolidate the supporting evidence, identify limitations, and outline future directions. This review aims to evaluate the efficacy and safety of LAAO, drawing on clinical trials and real-world studies to provide a balanced perspective. Additionally, we address the limitations of current research, including variability in patient selection, procedural techniques, and follow-up protocols. By highlighting gaps in the knowledge and areas for improvement, this review aims to guide future research efforts to optimize and expand the therapeutic potential of LAAO.
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