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Background: Third-generation cephalosporins remain
the empirical mainstay for pediatric urinary tract infections
(UTIs) in Korea, yet the resistance rate now approaches 30%,
thereby threatening treatment effectiveness.
Purpose: To determine whether completing a cephalosporin
regimen, despite in vitro resistance, increases early
UTI recurrence rates.
Methods: We retrospectively reviewed the cases of children
aged <24 months with their first Gram-negative UTI
admitted in 2020–2024. Three exposure groups were defined:
susceptible isolates treated... |