title: High prevalence of ceftazidime-resistant Klebsiella pneumoniae and increase of imipenem-resistant Pseudomonas aeruginosa and Acinetobacter spp. in Korea: a KONSAR program in 2004.
abstract: A nationwide antimicrobial resistance surveillance has been conducted since 1997 in Korea. In this study, susceptibility test data generated in 2004 by KONSAR group hospitals were analyzed and compared to those at a commercial laboratory. In hospitals, the rank orders of organisms in 2004 were identical to those in 2003. The most prevalent species was Staphylococcus aureus (20.2%) in hospitals, but Escherichia coli (29.7%) in the commercial laboratory. The proportions of Enterococcus faecium to all isolates of Enterococcus faecalis plus E. faecium were 47.2% in hospitals and 24.9% in the commercial laboratory. The mean resistance rates of significant antimicrobial-organism combinations in hospitals were: oxacillin-resistant S. aureus (68%), oxacillin-resistant (penicillin- nonsusceptible) Streptococcus pneumoniae (68%), vancomycin-resistant E. faecium (25%), cefotaxime-resistant E. coli (14%), ceftazidime- and cefoxitin-resistant Klebsiella pneumoniae (34% and 32%, respectively), and imipenem-resistant Acinetobacter spp. and Pseudomonas aeruginosa (17% and 24%, respectively). In conclusion, oxacillin-resistant staphylococci, expanded-spectrum cephalosporin-resistant K. pneumoniae, and imipenem-resistant Acinetobacter spp. and P. aeruginosa were prevalent in 2004. Increasing trends were observed for vancomycin-resistant E. faecium, cefoxitin- resistant E. coli and K. pneumoniae, and imipenem-resistant Acinetobacter spp. and P. aeruginosa. Certain antimicrobial- organism combinations were also prevalent among the commercial laboratory-tested strains.
authors.affiliation: Department of Laboratory Medicine, Yonsei University College of Medicine, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-752, Korea. whonetkor@yumc.yonsei.ac.kr
authors.forename: Kyungwon
authors.initials: K
authors.lastname: Lee
authors.forename: Chang Hyun
authors.initials: CH
authors.lastname: Lim
authors.forename: Ji Hyun
authors.initials: JH
authors.lastname: Cho
authors.forename: Wee Gyo
authors.initials: WG
authors.lastname: Lee
authors.forename: Young
authors.initials: Y
authors.lastname: Uh
authors.forename: Hwi Jun
authors.initials: HJ
authors.lastname: Kim
authors.forename: Dongeun
authors.initials: D
authors.lastname: Yong
authors.forename: Yunsop
authors.initials: Y
authors.lastname: Chong
mesh_terms: D000150:Acinetobacter / Q000187:drug effects / Q000302:isolation & purification; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D002442:Ceftazidime / Q000494:pharmacology*; D024901:Drug Resistance, Multiple, Bacterial; D020563:Gammaproteobacteria / Q000187:drug effects* / Q000302:isolation & purification; D006761:Hospitals; D015378:Imipenem / Q000494:pharmacology*; D007711:Klebsiella pneumoniae / Q000187:drug effects / Q000302:isolation & purification; D007723:Korea; D007753:Laboratories; D008826:Microbial Sensitivity Tests; D011550:Pseudomonas aeruginosa / Q000187:drug effects / Q000302:isolation & purification
chemical_list: D000900:Anti-Bacterial Agents; D015378:Imipenem; D002442:Ceftazidime