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doi: 10.54584/lms.2023.29
While enterococci are found as flora elements in many parts of the body, they have recently emerged as different infectious agents such as urinary tract infections, bacteremia, and meningitis. Increasing antibiotic resistance also poses additional challenges in treatment. In this study, it was aimed to determine the species identification and antibiotic resistance rates of enterococci isolated from the urinary tract. Enterococcus strains isolated from urine culture samples sent to the routine microbiology laboratory from various clinics of our hospital between 01.01.2020 and 31.12.2021 with the preliminary diagnosis of urinary tract infection were included in this study. Samples were cultivated on sheep blood agar and eosin methylene blue agar, and species determination and antibiogram evaluation were carried out in accordance with the recommendations of EUCAST (European Committee on Antimicrobial Susceptibility Testing-2020-2021) using conventional methods and automated identification device (VITEK 2 Compact-BioMerieux-France). All enterococci isolates (n=349) were susceptible to vancomycin, teicoplanin, tigecycline and linezolid. Of Enterococcus faecalis isolates (n=238), 32.8% were resistant to ciprofloxacin, 23.7% to high-level gentamicin, 33.2% to imipenem, 2.5% to nitrofurantoin, and 26.9% to streptomycin. Of the Enterococcus faecium isolates (n=111), 84.7% were resistant to ciprofloxacin, 58.6% to high-level gentamicin, 91% to imipenem, 31.5% to nitrofurantoin, and 83.8% to streptomycin. In conclusion, it is important to determine the resistance patterns of enterococcus strains, which are most frequently isolated as the causative agent of urinary tract infection, and also cause other clinical presentations such as wound infection or bacteremia, and to establish appropriate treatment protocols and to determine new antibiotic resistances.
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