Is percutaneous closure of the left atrial appendage comparable to anticoagulants for atrial fibrillation?

Area of Science:

• Cardiology
• Medical Interventions
• Evidence Synthesis

Background:

• Atrial fibrillation (AF) patients commonly use oral anticoagulation to prevent stroke.
• Oral anticoagulants increase bleeding risk, necessitating alternative treatments.
• Percutaneous left atrial appendage closure is an alternative to anticoagulation for stroke prevention in AF.

Purpose of the Study:

• To evaluate the effectiveness and safety of percutaneous left atrial appendage closure compared to conventional anticoagulation for stroke prevention in atrial fibrillation patients.
• To synthesize current evidence on left atrial appendage occlusion versus anticoagulation.

Main Methods:

• Systematic search of the Epistemonikos database, screening 30 databases.
• Inclusion of three systematic reviews and one randomized controlled trial.
• Application of the GRADE approach for summarizing findings and assessing evidence certainty.

Main Results:

• Percutaneous left atrial appendage occlusion may reduce stroke and mortality.
• The certainty of evidence for stroke and mortality reduction is low.
• The certainty of evidence for other outcomes is very low, making effects unclear.

Conclusions:

• Percutaneous left atrial appendage occlusion presents a potential alternative to oral anticoagulation for reducing stroke and mortality in AF patients.
• The current low certainty of evidence necessitates cautious interpretation and further high-quality research.
• More research is required to determine the impact of left atrial appendage occlusion on other clinical outcomes.