title: Native valve endocarditis caused by Neisseria elongata Subsp. nitroreducens.
abstract: Neisseria elongata, a normal resident in the human oral cavity, rarely causes invasive infections. We herein report a case of endocarditis caused by Neisseria elongata subsp. nitroreducens that occurred in a patient without any apparent cardiac complications. The patient received aortic valve replacement following the administration of intravenous beta-lactam for five weeks. To our knowledge, this is the first published case in Japan of N. elongata infection in a patient without a prosthetic device.
authors.affiliation: Department of Infectious Diseases;  2. Department of Clinical Laboratories, Tokyo Medical University Ibaraki Medical Center, Japan.
authors.forename: Hanako
authors.initials: H
authors.lastname: Osuka
authors.forename: Akito
authors.initials: A
authors.lastname: Ichiki
authors.forename: Masae
authors.initials: M
authors.lastname: Yamamoto
authors.forename: Daisuke
authors.initials: D
authors.lastname: Kawahata
authors.forename: Yuki
authors.initials: Y
authors.lastname: Saegusa
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Oishi
authors.forename: Shinji
authors.initials: S
authors.lastname: Okubo
authors.forename: Shigemi
authors.initials: S
authors.lastname: Hitomi
mesh_terms: D000368:Aged; D001021:Aortic Valve; D001022:Aortic Valve Insufficiency / Q000382:microbiology* / Q000601:surgery; D004697:Endocarditis, Bacterial / Q000382:microbiology* / Q000601:surgery; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation; D006801:Humans; D008297:Male; D042805:Neisseria elongata; D016870:Neisseriaceae Infections