It was reported that during a cryoablation procedure to treat an atrial fibrillation involving an polarxfit, polarmap, and polarsheath, the patient experienced cardiac tamponade.The procedure was canceled, and a pericardial drainage was performed and subsequently transitioned to open-chest surgery.Furthermore, during the open-chest surgery, it was discovered that the pulmonary vein was ruptured, and this was repaired.The patient is stable.The devices are not expected to be returned as they were disposed.
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