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Int J Antimicrob Agents. 2000 Dec;16(4):483-7.

Resistance of bacteria in urinary tract infections.

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Laboratoire de Microbiologie, Centre Hospitalier Lyon-Sud, 69310 Pierre-BĂ©nite, France.


Bacterial infection of the urinary tract is a common health problem in young women but also the most common nosocomial infection (>33%) contributing to the mortality of patients, and increasing the duration and cost of hospitalization. Escherichia coli is the most predominant organism and its prevalence varies in different studies. The high consumption of inappropriately prescribed antibiotics, combined with multiple pathology and frequent use of invasive devices, is a major factor contributing to high levels of resistance. There is a serious decrease in susceptibility of E. coli strains to amoxycillin, due to the presence of R-TEM enzymes, to cotrimoxazole and trimethoprim. Nitrofurantoin and fosfomycin-trometamol remain highly active against urinary Enterobacteriaceae, with over 90% of E. coli being susceptible. Knowledge of the most likely causative organisms and the prevalence of resistance pathogens to antimicrobial agents is essential to select antibiotics and to establish guidelines for the empirical treatment of urinary tract infections.

[Indexed for MEDLINE]

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