title: Further increase of vancomycin-resistant Enterococcus faecium, amikacin- and fluoroquinolone-resistant Klebsiella pneumoniae, and imipenem-resistant Acinetobacter spp. in Korea: 2003 KONSAR surveillance.
abstract: Monitoring temporal trends of antimicrobial resistance can provide useful information for the empirical selection of antimicrobial agents to treat infected patients and for the control of nosocomial infections. In this study, we analyzed antimicrobial resistance of clinically relevant bacteria in 2003 at Korean hospitals and at a commercial laboratory. The following organism-antimicrobial agent resistance combinations were very prevalent: oxacillin-resistant Staphylococcus aureus (68%), expanded-spectrum cephalosporin-resistant Klebsiella pneumoniae (25%), and fluoroquinolone-resistant Escherichia coli (33%), Acinetobacter spp. (58%), and Pseudomonas aeruginosa (40%). Moreover, gradual increases in vancomycin-resistant Enterococcus faecium (20%), cefoxitin-resistant E. coli (10%) and K. pneumoniae (23%), and imipenem-resistant P. aeruginosa (20%) and Acinetobacter spp. (13%) were also observed. The resistance rates of Acinetobacter spp. to most antimicrobial agents at hospitals and at the commercial laboratory were similar. Among the Acinetobacter spp. isolated at a tertiary-care hospital, 46.2% were multidrug-resistant to 9-12 of 13 antimicrobial agents, and 18.3% were panresistant. The exclusion of duplicate isolates at a tertiary-care hospital significantly lowered the proportion of oxacillin-resistant S. aureus, vancomycin-resistant E. faecium, and fluoroquinolone-resistant E. coli.
authors.affiliation: Department of Laboratory Medicine, Yonsei University College of Medicine, Seodaemun-gu, Seoul 120-752, Korea.
authors.forename: Kyungwon
authors.initials: K
authors.lastname: Lee
authors.forename: Ki Hyung
authors.initials: KH
authors.lastname: Park
authors.forename: Seok Hoon
authors.initials: SH
authors.lastname: Jeong
authors.forename: Hwan Sub
authors.initials: HS
authors.lastname: Lim
authors.forename: Jong Hee
authors.initials: JH
authors.lastname: Shin
authors.forename: Dongeun
authors.initials: D
authors.lastname: Yong
authors.forename: Gyoung-Yim
authors.initials: GY
authors.lastname: Ha
authors.forename: Yunsop
authors.initials: Y
authors.lastname: Chong
authors.lastname: KONSAR group
mesh_terms: D000150:Acinetobacter / Q000187:drug effects / Q000302:isolation & purification; D000151:Acinetobacter Infections / Q000188:drug therapy / Q000453:epidemiology / Q000382:microbiology; D000583:Amikacin / Q000494:pharmacology; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D024881:Drug Resistance, Bacterial; D016984:Enterococcus faecium / Q000187:drug effects* / Q000302:isolation & purification; D024841:Fluoroquinolones / Q000494:pharmacology; D020563:Gammaproteobacteria / Q000187:drug effects* / Q000302:isolation & purification; D016905:Gram-Negative Bacterial Infections / Q000188:drug therapy / Q000453:epidemiology / Q000382:microbiology*; D016908:Gram-Positive Bacterial Infections / Q000188:drug therapy / Q000453:epidemiology / Q000382:microbiology*; D006801:Humans; D015378:Imipenem / Q000494:pharmacology; D007710:Klebsiella Infections / Q000188:drug therapy / Q000453:epidemiology / Q000382:microbiology; D007711:Klebsiella pneumoniae / Q000187:drug effects / Q000302:isolation & purification; D007723:Korea / Q000453:epidemiology; D008826:Microbial Sensitivity Tests; D011159:Population Surveillance; D014640:Vancomycin / Q000494:pharmacology; D020713:Vancomycin Resistance
chemical_list: D000900:Anti-Bacterial Agents; D024841:Fluoroquinolones; D014640:Vancomycin; D015378:Imipenem; D000583:Amikacin