CTICasesMitral prosthesis dysfunction
Imaging findings
Serial chest radiographs and CT scans show progressive inferior migration and displacement of an Amplatzer vascular plug (placed to occlude a perivalvular mitral pseudoaneurysm) into the mitral valve replacement, causing severe valve dysfunction and congestive heart failure.
Key takeaways
Amplatzer vascular plugs used to occlude perivalvular pseudoaneurysms or leaks can uncommonly loosen and migrate. Displaced hardware can directly impinge on the adjacent bioprosthetic valve leaflets, leading to acute valvular regurgitation/stenosis.
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