Severe and early stenosis of porcine heterograft mitral valve.
A patient who had aortic and mitral valves replaced by Carpentier porcine heterografts for bacterial endocarditis developed severe heart failure 18 days after operation. A second emergency operation revealed that the mitral prosthesis had become severely stenosed and calcified. A loud Graham Steell murmur had developed during the 12 hours before reoperation but no distinct murmurs of mitral stenosis had been detected.
D000328:Adult; D000818:Animals; D001705:Bioprosthesis / Q000009:adverse effects*; D002114:Calcinosis; D004697:Endocarditis, Bacterial / Q000601:surgery; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008943:Mitral Valve / Q000637:transplantation; D008946:Mitral Valve Stenosis / Q000209:etiology*; D013552:Swine