Relationship between urinary tract infection categorization and pathogens' antimicrobial susceptibilities
Abstract
BACKGROUND: Urinary tract infections (UTIs) can be hard to treat and treatment plans need to include accurate categorization such as uncomplicated or complicated UTI, or catheterized or uncatheterized UTI. We investigated the antibiotic susceptibilities of representative uropathogens in UTI categories.
METHODS: We isolated uropathogens and analyzed their antimicrobial susceptibilities according to UTI categorization such as: (1) urology outpatients, urology inpatients, or other department inpatients; (2) uncomplicated or complicated UTIs; (3) upper or lower UTIs, and (4) non-catheterized or catheterized UTIs.
RESULTS: Escherichia coli, Enterococcus faecalis, and Pseudomonas aeruginosa were representative uropathogens. Susceptibilities to levofloxacin (LVFX) in E. coli in urology outpatients (p = 0.0179), those to ceftadizime in E. coli in other department inpatients (p = 0.0327), and those to LVFX in E. faecalis in complicated UTI (p = 0.0137) significantly decreased in these 3 years compared with the previous 3 years. Susceptibilities of upper UTI to LVFX in E. coli were significantly lower in the recent 4 years compared to lower UTI (p = 0.0452) and those of catheterized UTI to LVFX in E. faecalis were significantly lower than in non-catheterized UTI (p = 0.0153).
CONCLUSIONS: Data demonstrated different tendencies of uropathogens' antibiotic susceptibilities according to UTI categorizations and they could be useful for planning UTI treatments.
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