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Clinical Trial
Journal Article
Does left atrial appendage closure with a cardiac plug system reduce the stroke risk in nonvalvular atrial fibrillation patients? A single-center case series.
Pacing and Clinical Electrophysiology : PACE 2013 March
BACKGROUND: Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia and it is associated with an increased stroke risk, due mainly to cardiac embolism from the left atrial appendage (LAA). Percutaneous LAA closure is a method to reduce stroke risk in AF without using anticoagulant agents. In this study we report data from an Italian experience with the LAA occluder Amplatzer Cardiac Plug (ACP) device (Aga Medical Corporation, Plymouth, MN, USA).
METHODS: The study was designed to evaluate the safety of LAA closure using ACP and the efficacy of the procedure in preventing strokes during a 1-year follow-up. Patients with permanent or paroxysmal AF, high stroke risk, and contraindication to warfarin therapy were selected for the procedure.
RESULTS: The LAA closure was attempted in 37 patients and succeeded in 34 cases (91.9%). Four patients experienced serious complications (one cardiac tamponade requiring pericardiocentesis, two device embolizations, one low-rate response AF requiring artificial pacing). During a 1-year follow-up, ischemic stroke occurred in one of 34 patients, resulting in a stroke rate of 2.94%; thus there was a stroke rate reduction of 50.2% and 26.5% compared to the expected stroke rate, according to CHADS2 and CHA2 DS2 VASc score. None of the patients who received ACP experienced major bleeding during the follow-up.
CONCLUSION: LAA closure using ACP is a relatively feasible procedure which can be performed by highly experienced operators to reduce stroke rate in patients with AF, high stroke risk, and contraindication to oral anticoagulants.
METHODS: The study was designed to evaluate the safety of LAA closure using ACP and the efficacy of the procedure in preventing strokes during a 1-year follow-up. Patients with permanent or paroxysmal AF, high stroke risk, and contraindication to warfarin therapy were selected for the procedure.
RESULTS: The LAA closure was attempted in 37 patients and succeeded in 34 cases (91.9%). Four patients experienced serious complications (one cardiac tamponade requiring pericardiocentesis, two device embolizations, one low-rate response AF requiring artificial pacing). During a 1-year follow-up, ischemic stroke occurred in one of 34 patients, resulting in a stroke rate of 2.94%; thus there was a stroke rate reduction of 50.2% and 26.5% compared to the expected stroke rate, according to CHADS2 and CHA2 DS2 VASc score. None of the patients who received ACP experienced major bleeding during the follow-up.
CONCLUSION: LAA closure using ACP is a relatively feasible procedure which can be performed by highly experienced operators to reduce stroke rate in patients with AF, high stroke risk, and contraindication to oral anticoagulants.
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