The WATCHMAN device has been approved by the FDA:To reduce the risk of thromboembolism from the LAA in patients with nonvalvular atrial fibrillation who are at increased risk of stroke and systemic embolism and for whom anticoagulation therapy is recommended.This device will stay in place while your own tissue grows over it to permanently seal the entrance. The whole procedure usually takes around an hour.
Patient will be under general anaesthetic, your consultant will also let you know how long to avoid eating and drinking beforehand. Like all procedures, there may be some risks and side effects involved which your specialist will explain these to you.
You may be able to return home on the same day as your procedure, but most people will need to spend one night in hospital to recover. You should avoid vigorous exercise for a few days after the procedure to allow time for the area where the catheter was inserted in your groin to heal. Within few weeks you can get back to your usual routine, including work or exercise.