title: Clinical features and outcomes of bacteremia caused by Enterococcus casseliflavus and Enterococcus gallinarum: analysis of 56 cases.
abstract: The clinical significance and virulence potential of Enterococcus casseliflavus/flavescens and Enterococcus gallinarum are still uncertain. We retrospectively analyzed 56 cases of significant bacteremia caused by E. casseliflavus or E. gallinarum. Of these cases, 25 (44.6%) were associated with polymicrobial bacteremia, and 43 (76.8%) were associated with entry via the biliary tract. Resistance to vancomycin was observed in 17 (30.4%) of these 56 patients, and this resistance was significantly associated with E. gallinarum bacteremia (adjusted odds ratio [AOR], 10.56; 95% confidence interval [CI], 2.41-46.27) and bacteremia without biliary tract origin (AOR, 6.74; 95% CI, 1.44-31.67). The crude mortality rate was 13%, and the bacteremia-related mortality rate was 1.9%. In conclusion, bacteremia due to E. casseliflavus and E. gallinarum is commonly associated with biliary tract disease and may be associated with a low risk of mortality.
authors.affiliation: Division of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
authors.forename: Sang-Ho
authors.initials: SH
authors.lastname: Choi
authors.forename: Sang-Oh
authors.initials: SO
authors.lastname: Lee
authors.forename: Tae Hyong
authors.initials: TH
authors.lastname: Kim
authors.forename: Jin-Won
authors.initials: JW
authors.lastname: Chung
authors.forename: Eun Ju
authors.initials: EJ
authors.lastname: Choo
authors.forename: Yee Gyung
authors.initials: YG
authors.lastname: Kwak
authors.forename: Mi-Na
authors.initials: MN
authors.lastname: Kim
authors.forename: Yang Soo
authors.initials: YS
authors.lastname: Kim
authors.forename: Jun Hee
authors.initials: JH
authors.lastname: Woo
authors.forename: Jiso
authors.initials: J
authors.lastname: Ryu
authors.forename: Nam Joong
authors.initials: NJ
authors.lastname: Kim
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016470:Bacteremia / Q000150:complications / Q000453:epidemiology / Q000382:microbiology* / Q000503:physiopathology; D001660:Biliary Tract Diseases / Q000150:complications* / Q000401:mortality; D016983:Enterococcus; D005260:Female; D016908:Gram-Positive Bacterial Infections / Q000150:complications / Q000453:epidemiology / Q000382:microbiology* / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged