title: [Medium-term results of aortic valve replacement with cryopreserved homograft valves: importance of a domestic homograft valve bank].
abstract: There are advantages to using aortic homografts as aortic valve replacements (AVR), particularly in patients with complex infective endocarditis. To determine the importance of a domestic homograft valve bank, our 23 surgical cases of homograft-AVR were reviewed. Since 2000, the Tissue Bank of the National Cardiovascular Center has supplied 23 aortic homograft valves for the treatment of complex aortic valve endocarditis. Fourteen of 23 patients had prosthetic valve endocarditis and 20 patients had an aortic annular abscess. The early mortality rate was 17% (4 patients), in all of whom prosthetic valve replacement had been performed previously. No recurrent endocarditis and no recurrent aortic regurgitation were noted at medium-term follow-up. An aortic homograft valve is the conduit of choice in cases of infective endocarditis and the importance of a domestic homograft valve bank should be recognized.
authors.affiliation: Department of Cardiovascular Surgery, National Cardiovascular Center, Suita, Osaka, Japan.
authors.forename: Kazuo
authors.initials: K
authors.lastname: Niwaya
authors.forename: Junjiro
authors.initials: J
authors.lastname: Kobayashi
mesh_terms: D001021:Aortic Valve / Q000601:surgery*; D001705:Bioprosthesis; D015925:Cryopreservation; D006152:Cyclic GMP / Q000031:analogs & derivatives; D004696:Endocarditis / Q000601:surgery; D006349:Heart Valve Diseases / Q000601:surgery*; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000379:methods*; D006801:Humans; D007564:Japan; D011379:Prognosis; D014015:Tissue Banks; D014019:Tissue Donors; D014184:Transplantation, Homologous; D014443:Tyrosine / Q000031:analogs & derivatives
chemical_list: D014443:Tyrosine; C014832:succinyl cyclic GMP-tyrosine methyl ester; D006152:Cyclic GMP