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Updated: Aug 24, 2025
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Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
Published on: February 26, 2013
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Percutaneous left atrial appendage occlusion discrepancy between randomised trials and clinical practice
Thomas Kümler1, Jarl Emanuel Strange2, Niels Holmark Andersen3
1Cardiology, Herlev Hospital, Herlev, Denmark tkumler@dadlnet.dk.
Open Heart
|October 21, 2022
Summary
Left atrial appendage occlusion (LAAO) offers an alternative stroke prevention method for atrial fibrillation patients with bleeding risks. However, limited data and serious complication risks question its current widespread use.
Area of Science:
- Cardiology
- Medical Devices
- Interventional Procedures
Background:
- Atrial fibrillation increases stroke risk, particularly in patients with prior bleeding on oral anticoagulants.
- Left atrial appendage occlusion (LAAO) is an emerging alternative for stroke risk reduction in this population.
- The utilization of LAAO procedures is increasing, influenced by media coverage.
Purpose of the Study:
- To critically appraise the evidence on the efficacy and safety of LAAO for stroke prophylaxis.
- To evaluate the current widespread use of LAAO in clinical practice.
Main Methods:
- Review and critical analysis of available randomized controlled trial data.
- Assessment of safety and efficacy data for left atrial appendage closure devices.
Main Results:
- Evidence supporting LAAO is based on limited randomized data.
- The procedure carries a risk of serious complications.
- Current data do not support the widespread adoption of LAAO.
Conclusions:
- Left atrial appendage occlusion has potential benefits but is supported by limited evidence.
- The risk of serious complications associated with LAAO warrants caution.
- The current widespread use of LAAO may not be justified by the available data.
