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Updated: May 11, 2026

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The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
Published on: February 28, 2012
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SCAI/HRS Expert Consensus Statement on Transcatheter Left Atrial Appendage Closure
Jacqueline Saw1, David R Holmes2, João L Cavalcante3
1Division of Cardiology, Vancouver General Hospital, University of British Columbia, Canada.
Summary
Left atrial appendage closure (LAAC) using endovascular devices is increasingly common for preventing stroke in atrial fibrillation patients. This consensus statement provides updated, evidence-based recommendations for best practices in LAAC procedures.
Area of Science:
- Cardiology
- Medical Devices
- Interventional Procedures
Background:
- Surgical left atrial appendage exclusion began in 1949.
- Transcatheter endovascular LAAC has rapidly advanced, with numerous devices available.
- LAAC procedures have surged globally since 2015.
Purpose of the Study:
- To provide updated, evidence-based recommendations for transcatheter LAAC.
- To focus on contemporary best practices for endovascular LAAC devices.
- To address advancements in technology, clinical practice, and trial data since 2016.
Main Methods:
- Development of a consensus statement by the Society for Cardiovascular Angiography & Interventions (SCAI).
- Review of recent clinical trials and registries.
- Incorporation of evolved device and imaging technologies.
Main Results:
- Significant increase in LAAC procedures performed worldwide.
- Maturation of technical expertise and clinical practice in LAAC.
- Evolution of transcatheter LAAC devices and imaging modalities.
Conclusions:
- SCAI has updated its recommendations for transcatheter LAAC.
- The consensus focuses on evidence-based best practices for endovascular LAAC.
- This statement guides current practice for atrial fibrillation stroke risk reduction.

