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Updated: May 11, 2026
The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
Published on: February 28, 2012
Intracardiac Echocardiography-guided Left Atrial Appendage Occlusion
Juan Carlos Diaz1, Mauricio Duque2, Jorge Marin3
1Cardiac Arrhythmia and Electrophysiology Service, Clinica Las Vegas, Universidad CES Medical School Medellin, Colombia.
Insights
Intracardiac echocardiography offers a promising alternative to transesophageal echocardiography for guiding left atrial appendage occlusion (LAAO) procedures. This approach may reduce complications associated with LAAO, improving patient outcomes.
Area of Science:
- Cardiology
- Medical Devices
- Interventional Procedures
Background:
- Left atrial appendage occlusion (LAAO) is an alternative to anticoagulation for stroke prevention in atrial fibrillation (AF).
- Transesophageal echocardiography (TOE) is the standard guidance method for LAAO, but has limitations including need for sedation and procedural risks.
- Intracardiac echocardiography (ICE) has emerged as a potential alternative to TOE for LAAO guidance.
Purpose of the Study:
- To review the current evidence for intracardiac echocardiography (ICE)-guided LAAO.
- To provide a practical, step-by-step approach for performing ICE-guided LAAO.
Main Methods:
- Literature review of studies evaluating ICE for LAAO.
- Description of the technical aspects and procedural steps for ICE-guided LAAO.
Main Results:
- ICE guidance facilitates transseptal puncture and device deployment during LAAO.
- ICE may offer advantages over TOE by potentially reducing the need for general anesthesia and associated risks.
- Evidence suggests ICE is feasible and effective for LAAO procedures.
Conclusions:
- Intracardiac echocardiography is a viable alternative to transesophageal echocardiography for guiding left atrial appendage occlusion.
- ICE-guided LAAO may enhance procedural safety and patient comfort.
- Further research is warranted to fully establish the role of ICE in LAAO.
Abstract:
Left atrial appendage occlusion (LAAO) is a suitable alternative to oral anticoagulant therapy to prevent stroke in patients with AF. Most procedures are performed under transoesophageal echocardiography (TOE) guidance, which facilitates transseptal puncture, reduces the risk of procedurerelated complications and provides an additional method for device selection and real-time monitoring during device deployment. However, TOE has significant shortcomings, including the need for general anaesthesia/deep sedation as well as a significant risk of procedure-related adverse events. More recently, intracardiac echocardiography has been proposed as an alternative to TOE guidance during LAAO procedures. In this review, we summarise the available evidence as well as providing a step-by-step approach for intracardiac echocardiography-guided LAAO.
