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  • Title: Structural valvular deterioration of Hancock standard valve in the mitral position 33 years after initial implantation.
    Author: Saisho H, Tayama K, Shimoishi K, Hori H, Okazaki T.
    Journal: J Artif Organs; 2016 Dec; 19(4):408-410. PubMed ID: 27165606.
    Abstract:
    A 77-year-old woman who had undergone mitral valve replacement (MVR) with a 29 mm Hancock standard (H-S) bioprosthesis (Model 242) and tricuspid annuloplasty (Kay's method) at the age of 44 years was admitted urgently with acute heart failure. Echocardiography showed severe transvalvular leakage of the prosthesis and moderate tricuspid regurgitation. The patient underwent reMVR with a 29 mm Carpentier-Edwards Perimount Magna Mitral bioprosthesis and tricuspid annuloplasty with a 30 mm MC3 ring. The explanted bioprosthesis showed mild calcification and a tear in the leaflet, dehisced commissures and pannus overgrowth. To our knowledge there are no reports describing H-S valves that were still functioning over 30 years after implantation. Herein, we report a case of reMVR in a patient with an H-S valve that had been implanted 33 years previously.
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