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《Practical Journal of Medicine & Pharmacy》 2010-01
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Distribution and antimicrobial resistance of pathogens causing clinical infection:An analysis of author's hospital

GONG Yan-wen,CHEN SHi-min,LI Ji-xia,et al.Dept.of Laboratory Diagnosis,the General Hospital of Jinan Military Region,Jinan,SHandong 250031,China  
Objective To investigate the distribution and antimicrobial resistance of pathogens causing clinical infection in author's hospital in 2008.Method The VITEK-AMS were used to identify pathogens.Antimicrobial susceptibility test was carried by Kirby-Bayer method and the obtained results were analyzed according to CLSI M100 documents.Result Of the 1 900 clinical isolates,Gram negative bacilli,Gram positive cocci and fungi accounted for 68.42%,18.16% and 12.32%.The total rates of 5 kinds of pathogens,P.aeruginosa,E.coli,K.peumoniae,A.baumannii and C.albicans accounted for 59.26%.The total rates of the most common 20 kinds of pathogens accounted for 89.63%.There were only Imipenem,Cefoperazone-sulbactam,Meropenem and Piperacillin-tazobactam to which the average resistance rates of Gram negative bacilli were lower than 30%.However,28.9%,32.9% and 11.6% and 24.7% of P.aeruginosa stains and A.baumannii stains were resistant to Imipenem and Meropenem.ESBLs-producing strains accounted for 52.8% in E.coli and 37.2% in K.pneumoniae and 34.6% in P.mirabilis.About 44.0% of S.aureus isolates were identified as methicillin-resistant Staphylococcus,60.0% coagulase negative Staphylococcus(CNS)isolates were methicillin-resistant.No vancomycin-resistant strain was found,1 strain of E.faecalis and 1 strain of E.faecium were identified as VRE.The resistance rate of Candida to Fluconazole was nearly 5%.Conclusion There were not obvious changes in structure of pathogens in recent years.However,the infections caused by fungi were increasing.Cefoperazone-sulbactam is highly active for Nonfermenters and Imipenem is still highly active for Enterobactericaeae.The rates of ESBLs-producing strains are increasing.The data will be useful for diagnosis of disease and rational use of antimicrobial agents.
【CateGory Index】: R446.5
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