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Updated: Feb 17, 2026

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
Published on: February 26, 2013
Left atrial appendage closure: Six reasons why I wouldn't choose a percutaneous closure for my appendage
Marco Ferlini1, Roberta Rossini2
1SC Cardiologia, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
Insights
Left atrial appendage closure (LAAC) offers an alternative to oral anticoagulants for preventing strokes in non-valvular atrial fibrillation (AF) patients. This overview examines trials comparing LAAC with non-vitamin K oral anticoagulants (NOACs).
Area of Science:
- Cardiology
- Vascular Medicine
- Medical Devices
Background:
- The left atrial appendage is a major source of thrombi in non-valvular atrial fibrillation (AF).
- Non-vitamin K oral anticoagulants (NOACs) are effective for preventing embolic complications in AF.
- Guidelines suggest percutaneous left atrial appendage closure (LAAC) for AF patients with contraindications to long-term oral anticoagulant therapy (OAC).
Purpose of the Study:
- To provide an overview of key clinical trials comparing NOACs and LAAC.
- To evaluate the safety and efficacy of LAAC as an alternative stroke prevention strategy in AF.
Main Methods:
- Review of major clinical trials involving NOACs and LAAC.
- Analysis of data on embolic complication prevention and safety profiles.
Main Results:
- NOACs demonstrate safety and efficacy in preventing embolic events.
- LAAC is a viable option for patients unable to tolerate long-term OAC.
Conclusions:
- Both NOACs and LAAC are important strategies for stroke prevention in non-valvular AF.
- LAAC provides an alternative for specific patient populations with contraindications to OAC.
Abstract:
Left atrial appendage has been shown as a primary source of thrombi in patients with non-valvular atrial fibrillation (AF). Non vitamin k oral anticoagulants (NOAC) have been shown to be safe and effective in the prevention of embolic complications. Current guidelines on AF state that percutaneous left atrial appendage closure (LAAC) might be considered in patients with contraindication to long term oral anticoagulant therapy (OAC). An overview of the main trials on NOAC and LAAC is provided.
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