Long-term Safety of Heart Device for Atrial Fibrillation

This is a registry study that follows patients who have received a special device implanted in their heart to prevent strokes caused by atrial fibrillation. The device closes off a small pouch in the heart called the left atrial appendage, which can trap blood clots in people with irregular heartbeats. Researchers want to understand how well this treatment works over the long term—5 years after the procedure.

People with atrial fibrillation (an irregular heartbeat) are at high risk of developing blood clots that can cause strokes. While blood-thinning medications are the first line of treatment, some patients cannot take these drugs safely due to allergies, bleeding risks, or other medical conditions. This study exists to confirm that the heart device is a safe and effective alternative for protecting these high-risk patients.