title: Unusual 25-year durability of an Ionescu-Shiley pericardial bioprosthesis.
abstract: Ionescu-Shiley valve was withdrawn from clinical use in 1987 for its early structural failure after implantation. This was due to valve design rather than the natural properties of bovine pericardium itself. We describe the unexpected 25-year survival of an Ionescu-Shiley bioprosthesis in the mitral and tricuspid positions, implanted to treat endomyocardial fibrosis. This report makes 2 important points: (1) pannus overgrowth may be a favorable determinant of the durability of xenografts, and (2) bovine pericardial valves may have excellent hemodynamic performance and tissue durability for more than 20 years in the mitral position even in young patients.
authors: Department of Cardiac Surgery, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy. fioreant7@gmail.com
authors: Antonio
authors: A
authors: Fiore
authors: Denton A
authors: DA
authors: Cooley
authors: Antonino M
authors: AM
authors: Grande
authors: Mario
authors: M
authors: Viganò
authors: Paolo
authors: P
authors: Angelini
mesh_terms: D000328:Adult; D001705:Bioprosthesis; D005260:Female; D006350:Heart Valve Prosthesis; D006801:Humans; D008943:Mitral Valve / Q000601:surgery*; D010496:Pericardium; D011474:Prosthesis Design; D013997:Time Factors; D014261:Tricuspid Valve / Q000601:surgery*