Mechanical valve dysfunction after percutaneous perimitral leak closure: salvage by percutaneous occluder retrieval.

Percutaneous closure of perivalvular regurgitation may be complicated by prosthetic valve impingement and dysfunction. We describe a patient with two perimitral defects who developed severe mitral stenosis due to mitral leaflet impingement after percutaneous implantation of three amplatzer muscular ventricular septal defect occluder devices. The largest amplatzer occluder device was successfully snared with restoration of normal prosthetic valve motion. (C) 2010 Wiley-Liss, Inc.