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Further increases in carbapenem-, amikacin-, and fluoroquinolone-resistant isolates of Acinetobacter spp. and P. aeruginosa in Korea: KONSAR study 2009

Authors
 Kyungwon Lee  ;  Mi-Na Kim  ;  Jae-Seok Kim  ;  Hye Lim Hong  ;  Jung Oak Kang  ;  Jong Hee Shin  ;  Yeon-Joon Park  ;  Dongeun Yong  ;  Seok Hoon Jeong  ;  Yunsop Chong  ;  The KONSAR Group 
Citation
 YONSEI MEDICAL JOURNAL, Vol.52(5) : 793-802, 2011 
Journal Title
YONSEI MEDICAL JOURNAL
ISSN
 0513-5796 
Issue Date
2011
MeSH
Acinetobacter/drug effects* ; Acinetobacter/isolation & purification ; Acinetobacter Infections/drug therapy ; Acinetobacter Infections/microbiology ; Amikacin/pharmacology ; Anti-Bacterial Agents/pharmacology ; Carbapenems/pharmacology ; Cross Infection/drug therapy ; Cross Infection/microbiology ; Drug Resistance, Bacterial* ; Fluoroquinolones/pharmacology ; Humans ; Pseudomonas Infections/drug therapy ; Pseudomonas Infections/microbiology ; Pseudomonas aeruginosa/drug effects* ; Pseudomonas aeruginosa/isolation & purification ; Republic of Korea
Keywords
Antimicrobial resistance surveillance ; fluoroquinolone resistance ; imipenem resistance ; KONSAR ; Staphylococcus ; Acinetobacter spp. ; P. aeruginosa
Abstract
PURPOSE: The increasing prevalence of antimicrobial resistant bacteria has become a serious worldwide problem. The aim of this study was to analyze antimicrobial resistance data generated in 2009 by hospitals and commercial laboratories participating in the Korean Nationwide Surveillance of Antimicrobial Resistance program.

MATERIALS AND METHODS: Susceptibility data were collected from 24 hospitals and two commercial laboratories. In the analysis, resistance did not include intermediate susceptibility. Duplicate isolates were excluded from the analysis of hospital isolates, but not from the commercial laboratory isolates.

RESULTS: Among the hospital isolates, methicillin-resistant Staphylococcus aureus, penicillin G-nonsusceptible Streptococcus pneumoniae based on meningitis breakpoint, and ampicillin- resistant Enterococcus faecium remained highly prevalent. The proportion of vancomycin-resistant E. faecium gradually increased to 29%. Ceftazidime-resistant Escherichia coli and Klebsiella pneumoniae increased to 17% and 33%, respectively, and fluoroquinolone-resistant K. pneumoniae, Acinetobacter spp. and Pseudomonas aeruginosa increased to 33%, 67% and 39%, respectively. Amikacin-resistant Acinetobacter spp. increased to 48%. Imipenem-resistant Acinetobacter spp. and P. aeruginosa increased to 51% and 26%, respectively. Higher resistance rates were observed in intensive care unit (ICU) isolates than in non-ICU isolates among the isolates from hospitals. Resistance rates were higher in hospital isolates than in clinic isolates among the isolates from commercial laboratories.

CONCLUSION: Among the hospital isolates, ceftazidime-resistant K. pneumoniae and fluoroquinolone- resistant K. pneumoniae, Acinetobacter spp., and P. aeruginosa further increased. The increase in imipenem resistance was slight in P. aeruginosa, but drastic in Acinetobacter spp. The problematic antimicrobial-organism combinations were much more prevalent among ICU isolates
Files in This Item:
T201103328.pdf Download
DOI
10.3349/ymj.2011.52.5.793
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Laboratory Medicine (진단검사의학교실) > 1. Journal Papers
Yonsei Authors
Yong, Dong Eun(용동은) ORCID logo https://orcid.org/0000-0002-1225-8477
Lee, Kyungwon(이경원) ORCID logo https://orcid.org/0000-0003-3788-2134
Jeong, Seok Hoon(정석훈) ORCID logo https://orcid.org/0000-0001-9290-897X
Chong, Yun Sop(정윤섭)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/94196
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