title: Structural valvular deterioration of Hancock standard valve in the mitral position 33 years after initial implantation.
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.
authors.affiliation: Department of Cardiovascular Surgery, Cardiovascular Center, Munakata Suikokai General Hospital, 5-7-1, Himakino, Fukutsu, Fukuoka, 811-3298, Japan. saisho_hiroyuki@med.kurume-u.ac.jp.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Saisho
authors.affiliation: Department of Cardiovascular Surgery, Cardiovascular Center, Munakata Suikokai General Hospital, 5-7-1, Himakino, Fukutsu, Fukuoka, 811-3298, Japan.
authors.forename: Keiichiro
authors.initials: K
authors.lastname: Tayama
authors.affiliation: Department of Cardiovascular Surgery, Cardiovascular Center, Munakata Suikokai General Hospital, 5-7-1, Himakino, Fukutsu, Fukuoka, 811-3298, Japan.
authors.forename: Koichiro
authors.initials: K
authors.lastname: Shimoishi
authors.affiliation: Department of Cardiovascular Surgery, Cardiovascular Center, Munakata Suikokai General Hospital, 5-7-1, Himakino, Fukutsu, Fukuoka, 811-3298, Japan.
authors.forename: Hidetsugu
authors.initials: H
authors.lastname: Hori
authors.affiliation: Department of Cardiovascular Surgery, Cardiovascular Center, Munakata Suikokai General Hospital, 5-7-1, Himakino, Fukutsu, Fukuoka, 811-3298, Japan.
authors.forename: Teiji
authors.initials: T
authors.lastname: Okazaki
mesh_terms: D000368:Aged; D001705:Bioprosthesis; D002114:Calcinosis; D005260:Female; D006333:Heart Failure / Q000209:etiology / Q000601:surgery; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation; D006801:Humans; D008943:Mitral Valve; D008944:Mitral Valve Insufficiency / Q000209:etiology* / Q000601:surgery; D011475:Prosthesis Failure / Q000009:adverse effects*; D012086:Reoperation; D014261:Tricuspid Valve / Q000601:surgery
keywords: Evaluation of explanted valve; Hancock standard bioprosthesis; Mitral valve replacement; Structural valvular deterioration