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  • Title: Co-trimoxazole and quinolone resistance in Escherichia coli isolated from urinary tract infections over the last 10 years.
    Author: Karaca Y, Coplu N, Gozalan A, Oncul O, Citil BE, Esen B.
    Journal: Int J Antimicrob Agents; 2005 Jul; 26(1):75-7. PubMed ID: 15955672.
    Abstract:
    Over the last 10 years the treatment of choice for urinary tract infections (UTIs) in Turkey has changed from co-trimoxazole to quinolones owing to the rate of resistance to co-trimoxazole and its high level of therapeutic failure. The resistance ratio of 1939 UTI Escherichia coli from outpatients (1994-2003) was evaluated by Kirby-Bauer disc diffusion method for the aforementioned antibiotics to determine the change in resistance. The co-trimoxazole resistance ratio decreased during this period, with the highest ratio in 1996 (69.3%) and the lowest ratio in 2003 (38.5%) (P < 0.001). The lowest resistance ratios occurred in 1995 (4.1%) for ofloxacin and in 1996 (5.2%) for ciprofloxacin, and the highest resistance ratios occurred in 2002 (25.3% and 27.6%) for ofloxacin and ciprofloxacin, respectively (P < 0.001, P < 0.001). These findings emphasise that antibiotic usage policies, especially empirical therapies, should be based on antimicrobial resistance surveillance studies.
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