title: Tissue valve is the preferred option for patients aged 60 and older.
authors.affiliation: Division of Cardiac Surgery, Brigham and Women's Hospital, Boston, MA.
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Kaneko
authors.forename: Lawrence H
authors.initials: LH
authors.lastname: Cohn
authors.forename: Sary F
authors.initials: SF
authors.lastname: Aranki
mesh_terms: D000818:Animals; D001024:Aortic Valve Stenosis / Q000000981:diagnostic imaging / Q000401:mortality* / Q000601:surgery*; D001705:Bioprosthesis / Q000706:statistics & numerical data*; D002417:Cattle; D006350:Heart Valve Prosthesis / Q000706:statistics & numerical data*; D019918:Heart Valve Prosthesis Implantation / Q000401:mortality* / Q000706:statistics & numerical data; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D012307:Risk Factors; D013552:Swine; D014463:Ultrasonography