Analysis on infection distribution and drug resistance of extended-spectrum-βlactamases producing Escherichia coli / 国际检验医学杂志

ABSTRACT

Objective To analyze and monitor the distribution of EBSLs-producing E.coli in our hospital and its resistance to commonly used antibacterial drugs.Methods The drug sensitivity test results of E.coli cultured in our hospital from 2008 to 2011 were continuously observed and performed the summary and the descriptive analysis.Results The detection rate of EBSLs-produ-cing E.coli during these 4 years was more than 50%.The generation rate of ESBLs-producing E.coli from the pharyngeal swab samples was the highest.The drug resistance of EBSLs-producing E.coli was mostly higher than that of non-EBSLs-producing E. coli,the difference was statistically significant(P <0.05).EBSLs-producing E.Coli showed the multi-drug resistant phenomenon. But the resistance rate of EBSLs-producing E.Coli to some antimicrobial drugs had the decreasing tendency year by year.Conclusion The drug-resistance situation of ESBLs-producing E.Coli is serious.The diceovered carbapenems-resistance ESBLs-producing E. Coli should cause the concern.The antibacterial drugs with increased drug-resistance rate should be replaced by the antibacterial drugs with the gradually decreased drug resistance rate.Strengthening the bacterial drug resistance minitoring can timely discover the change trend of clinically isolated bacteria and has the improtant significance to provide reference for clinically empirical medica-tion.