| Summary: | Introduction: different antimicrobial stewardship programs are fundamental to improve clinical results in patients.
Objectives: to determine the impact on amikacin and ceftriaxone consumption, in addition to knowing changes in sensitivity of the main agents in the emergency
unit of the Carlos van Buren Hospital in Valparaíso, Chile, after the implementation of a treatment guide for pyelonephritis.
Materials and methods: quasi-experimental before/after study. A treatment guide was implemented for pyelonephritis. The guide was sent by WhatsApp to all
clinicians in the emergency unit. Following the intervention, amikacin and ceftriaxone defined daily dose (DDD) were measured and compared with the DDD for
the same months of the previous year. In addition, the sensitivity of E.coli, K. pneumonia and P.mirabilis isolated from urine cultures was extracted.
Results: after the intervention there was a sustained increase of the DDD of amikacin and a decrease in the DDD of ceftriaxone in the months studied period. K.
pneumoniae maintained its sensitivity to amikacin and increased it to cefotaxime, ertapenem, and meropenem.
Conclusions: The guide’s implementation for treatment of high UTI in the emergency unit of the Carlos van Buren hospital increased the consumption of amikacin
and decreased that of ceftriaxone. K. pneumoniae increased its sensitivity to cefotaxime, ertapenem and meropenem.
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