title: Bacteremic renal stone-associated urinary tract infection caused by nontypableHaemophilus influenzae: A rare invasive disease in an immunocompetent patient.
abstract: Haemophilusspecies are known to colonize the upper respiratory tract and can cause infections. HoweverHaemophilus influenzaehas been rarely described as a cause of genitourinary tract infection. We report a 44-year-old nonimmunocompromised Japanese man with bacteremic pyelonephritis caused by a nontypableH. influenzaeassociated with a left ureteral calculus. The organism was isolated from both blood and urine cultures. Treatment consisted of 14 days of intravenous ceftriaxone and oral amoxicillin one after than other and insertion of a left ureteral stent. After discharge, he underwent extracorporeal shock wave lithotrity for the left ureteral calculus. He had no recrudescence of the symptoms.H. influenzaeshould be considered as a genitourinary pathogen among patients with certain risk factors such as anatomical or functional abnormality of genitourinary tract. Collaboration between clinicians and microbiology laboratory personnel is essential for correct identification of the organism and appropriate therapy for genitourinary tract infections due to this organism.
authors.affiliation: Department of General Internal Medicine, Mito Kyodo General Hospital, University of Tsukuba, Mito, Japan.
authors.forename: Masanao
authors.initials: M
authors.lastname: Fujii
authors.affiliation: Center for Global Health, Mito Kyodo General Hospital, University of Tsukuba, Mito, Japan.
authors.forename: Harumi
authors.initials: H
authors.lastname: Gomi
authors.affiliation: Center for Global Health, Mito Kyodo General Hospital, University of Tsukuba, Mito, Japan.
authors.forename: Haruhiko
authors.initials: H
authors.lastname: Ishioka
authors.affiliation: Center for Global Health, Mito Kyodo General Hospital, University of Tsukuba, Mito, Japan.
authors.forename: Noriko
authors.initials: N
authors.lastname: Takamura
keywords: Bacteremia; Biologic type 3; Genitourinary tract infection; Haemophilus influenzae; Nontypable