Unexpected long durability of a low-profile porcine Liotta bioprosthesis in mitral position.
We report a case in which replacement of a low-profile porcine Liotta bioprosthesis was required 21 years after initial implantation. The patient underwent mitral valve replacement with a 28-mm Liotta bioprosthesis in 1985 for mitral stenosis. Twenty-one years later, severe mitral regurgitation was detected at echocardiography and mitral valve reoperation combined with tricuspid annuloplasty was successfully performed. Focal perforation of two cusps with consequent intravalvular leak on bioprosthesis was found. This is the longest durability report for a Liotta bioprosthesis in mitral position.
Division of Cardiovascular Surgery, University Hospital 'S. Giovanni Battista', Turin, Italy.
Antonio
A
Campanella
Chiara
C
Comoglio
Fabrizio
F
Sansone
Mauro
M
Rinaldi
D000368:Aged; D000818:Animals; D001705:Bioprosthesis; D020878:Device Removal; D005260:Female; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000009:adverse effects / Q000295:instrumentation*; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000209:etiology / Q000601:surgery*; D008946:Mitral Valve Stenosis / Q000601:surgery*; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012086:Reoperation; D013552:Swine; D013997:Time Factors; D016896:Treatment Outcome