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Updated: Jun 23, 2026
28:13
Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
Published on: February 26, 2013
Left Atrial Appendage Closure vs. Oral Anticoagulation in Patients With Atrial Fibrillation: An Updated Systematic
Chika Chilaka1, Hassan Dawood Khan2, Muhammad Uzair Sarfraz3
1Lagos State University Nigeria.
Journal of Arrhythmia
|June 22, 2026
Summary
Left atrial appendage closure (LAAC) is an effective alternative to oral anticoagulants for stroke prevention, significantly reducing bleeding and mortality. This procedure offers comparable efficacy with added safety benefits for select patients.
Area of Science:
- Cardiology
- Interventional Cardiology
- Medical Devices
Background:
- Oral anticoagulants (OACs) are standard for stroke prevention in atrial fibrillation (AF).
- Left atrial appendage closure (LAAC) presents an alternative for patients with high bleeding risk or contraindications to anticoagulation.
Purpose of the Study:
- To evaluate the efficacy and safety of LAAC compared to OACs for stroke prevention.
- To assess outcomes including stroke, systemic embolism, bleeding, and mortality.
Main Methods:
- Systematic review and meta-analysis of four randomized controlled trials (RCTs).
- Independent data extraction and quality assessment using Rob 2.0.
- Analysis of 3116 participants, reporting dichotomous outcomes as risk ratios (RR) with 95% confidence intervals (CIs).
Main Results:
- LAAC significantly reduced non-procedure-related bleeding (RR: 0.48) and all-cause mortality (RR: 0.74).
- A marginal reduction was noted in the composite outcome of stroke, systemic embolism, or death (RR: 0.77).
- No significant differences were observed for major bleeding, all strokes, ischemic stroke, hemorrhagic stroke, systemic embolism, or cardiovascular/unexplained death.
Conclusions:
- LAAC is a viable alternative to OACs in selected AF patients.
- LAAC demonstrates comparable efficacy to OACs with significant benefits in reducing non-procedure-related bleeding and mortality.
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