2019, Number 4
In vitro effectiveness of amikacin and fosfomicin in uropathogenic and multidrug resistant Escherichia coli strains
Language: Spanish
References: 27
Page:
PDF size: 454.90 Kb.
ABSTRACT
Introduction: the urinary tract infections acquired in the community caused by multidrug resistant Escherichia coli strains, are a growing phenomenon in the world.Objective: to determine the antimicrobial susceptibility, the resistance patterns and to find out the amikacin and fosfomycin sensitivity of the isolated multidrug resistant strains.
Methods: we developed a descriptive retrospective study in the period from June 1st , 2017 to December 31st , 2018. The universe we worked with was formed by 265 isolated Escherichia coli strains of ambulatory patients, with suspected urinary tract infections, who belonged to two health institutions: Aleida Fernandez Chardiet Hospital and the Municipal Hygiene, Epidemiology and Microbiology Center, in Güines Municipality, Mayabeque Province, Cuba.
Results: amikacin, fosfomicin and nitrofurantoin presented over 90 % of effectiveness. Antimicrobial resistance of isolated Escherichia coli was most common to ceftazidime (72%), followed by trimethoprim – sulfamethoxazole (61.5%), nalidixic acid (61.1%) and ciprofloxacin (52.8%). The strains showed a resistance pattern from three to nine antibiotics. Nalidixic acid and trimethoprim – sulfamethoxazole were found in most of the multiresistance patterns. Notice that in some profiles, ciprofloxacin has been also included. From the 265 isolated strains of Escherichia coli, 147 (55.4%) were multidrug resistant; and from those, 87% showed higher sensitivity to fosfomycin and amikacin.
Conclusions: trimethoprim - sulfamethoxazole and quinolones have a high resistance percentage.Fosfomycin and amikacin can be considered suitable therapeutic options for Escherichia coli multidrug resistant strains, based on the sensitivity studied.The results obtained from this study are a reason for epidemiological concern, and require a strict follow-up in the coming years.
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