title: Isolated bacteria and susceptibilities to antimicrobial agents in biliary infections.
abstract: OBJECTIVE
  A total of 209 bacterial strains were isolated from patients with biliary infection in our department between January 1982 and December 2000.
  
  
  METHODS
  Antimicrobial susceptibility tests were conducted to ascertain the presence of drug-resistant bacteria.
  
  
  RESULTS
  The breakdown of the 109 strains from the patients with primary biliary infections was as follows: 70 strains of gram-negative aerobic bacteria; 27 strains of gram-positive aerobic bacteria; 6 strains of gram-negative anaerobic bacteria; and 6 strains of gram-positive anaerobic bacteria. Among the 100 strains isolated from the patients with postoperative infection, the frequency of anaerobic bacteria was similar, but the frequency of gram-negative aerobic bacteria was lower at 55 strains, whereas frequency of gram-positive aerobic bacteria was higher at 36 strains. Of the 70 strains of gram-negative aerobic bacteria isolated from patients with primary biliary infection, the following four bacteria accounted for 75% of the total: Klebsiella pneumoniae, Escherichia coli, Enterobacter spp., and Pseudomonas aeruginosa.
  
  
  CONCLUSIONS
  The frequencies of gram-negative aerobic bacteria were high among patients with primary biliary infection, while those of gram-positive aerobic bacteria were high among patients with postoperative biliary infection. Although VRE was not isolated, the frequency of MRSA was extremely high.
authors.affiliation: First Department of Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan.
authors.forename: Mitsuhiro
authors.initials: M
authors.lastname: Mukaiya
authors.forename: Koichi
authors.initials: K
authors.lastname: Hirata
authors.forename: Tadashi
authors.initials: T
authors.lastname: Katsuramaki
authors.forename: Chikashi
authors.initials: C
authors.lastname: Kihara
authors.forename: Yasutoshi
authors.initials: Y
authors.lastname: Kimura
authors.forename: Koji
authors.initials: K
authors.lastname: Yamaguchi
authors.forename: Tomohisa
authors.initials: T
authors.lastname: Furuhata
authors.forename: Fumitake
authors.initials: F
authors.lastname: Hata
mesh_terms: D000900:Anti-Bacterial Agents / Q000627:therapeutic use*; D001424:Bacterial Infections / Q000188:drug therapy* / Q000382:microbiology; D001431:Bacteriological Techniques; D002761:Cholangitis / Q000188:drug therapy* / Q000382:microbiology; D002764:Cholecystitis / Q000188:drug therapy* / Q000382:microbiology; D004305:Dose-Response Relationship, Drug; D004352:Drug Resistance, Microbial; D006801:Humans; D008826:Microbial Sensitivity Tests; D013530:Surgical Wound Infection / Q000188:drug therapy / Q000382:microbiology
chemical_list: D000900:Anti-Bacterial Agents