Device embolization is a rare major complication of atrial septal defect
percutaneous closures that requires surgical management if non-invasive
retrieval fails. We report a symptomatic delayed embolization of an
Amplatzer septal occluder device into the left ventricle outflow tract
tangled with the mitral valve, complicated with ventricular arrhythmias
and cardiac tamponade during percutaneous retrieval attempt. Emergent
surgical treatment was performed, requiring combined approach through
the right atrium and the aorta for surgical removal.