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Impact of revised CLSI breakpoints for susceptibility to third-generation cephalosporins and carbapenems among Enterobacteriaceae isolates in the Asia-Pacific region: results from the Study for Monitoring Antimicrobial Resistance Trends (SMART), 2002-2010.
MedLine Citation:
PMID:  22749058     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
This study examined the rates of susceptibility to third-generation cephalosporins and carbapenems among Enterobacteriaceae isolates that had been obtained from patients with intraabdominal infections in the Asia-Pacific region as part of the Study for Monitoring Antimicrobial Resistance Trends (SMART). Susceptibility profiles obtained using 2009 Clinical and Laboratory Standards Institute (CLSI) breakpoints were compared with those obtained using the 2011 CLSI breakpoints. From 2002 to 2010, Escherichia coli and Klebsiella pneumoniae together accounted for more than 60% of the 13714 Enterobacteriaceae isolates analyzed during the study period. Extended-spectrum β-lactamase (ESBL) producers comprised 28.2% of E. coli isolates and 22.1% of K. pneumoniae isolates in the Asia-Pacific region, with China (55.6% and 33.7%, respectively) and Thailand (43.1% and 40.7%, respectively) having the highest proportions of ESBL producers. Based on the 2011 CLSI criteria, 77.2% of the Enterobacteriaceae isolates, 40.4% of ESBL-producing E. coli, and 25.2% of ESBL-producing K. pneumoniae isolates were susceptible to ceftazidime. Carbapenems showed in vitro activity against >90% of Enterobacteriaceae isolates in all participating countries, except for ertapenem in South Korea (susceptibility rate 82.2%). Marked differences (>5%) in susceptibility of ESBL-producing E. coli and K. pneumoniae isolates to carbapenems were noted between the profiles obtained using the 2009 CLSI criteria and those using the 2011 CLSI criteria. Continuous monitoring of antimicrobial resistance is necessary in the Asia-Pacific region.
Authors:
Chi-Chang Huang; Yao-Shen Chen; Han-Siong Toh; Yu-Lin Lee; Yuag-Meng Liu; Cheng-Mao Ho; Po-Liang Lu; Chun-Eng Liu; Yen-Hsu Chen; Jen-Hsien Wang; Hung-Jen Tang; Kwok-Woon Yu; Yung-Ching Liu; Yin-Ching Chuang; Yingchun Xu; Yuxing Ni; Wen-Chien Ko; Po-Ren Hsueh
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  International journal of antimicrobial agents     Volume:  40 Suppl     ISSN:  1872-7913     ISO Abbreviation:  Int. J. Antimicrob. Agents     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-07-03     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9111860     Medline TA:  Int J Antimicrob Agents     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  S4-S10     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 Elsevier B.V. All rights reserved.
Affiliation:
Department of Internal Medicine, National Cheng Kung University Hospital, No. 138, Sheng Li Road, Tainan 704, Taiwan.
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