Asymptomatic migration of an AMPLATZER ™ A mulet™ left atrial appendage occluder through the mitral valve

An 84‐year‐old woman with a history of hemorrhagic stroke was admitted for a new cerebral ischemic event. While in hospital, she was diagnosed with paroxysmal atrial fibrillation. Owing to her high thromboembolic risk (CHA 2 DS 2 ‐VASc score of 6) we performed left atrial appendage (LAA) closure using a 22‐mm AMPLATZER™ Amulet™. The procedure was successful. Systematic follow‐up with transthoracic echocardiography 8 hr later revealed that the LAA occluder had migrated and become entrapped in the mitral subvalvular apparatus. At this time, the patient was asymptomatic. The device was recovered percutaneously using a loop‐snare catheter, with no further complications. © 2016 Wiley Periodicals, Inc.