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Effectiveness of a neonatal intensive care unit–specific antimicrobial stewardship program: A ten-year review
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Effectiveness of a neonatal intensive care unit–specific antimicrobial stewardship program: A ten-year review
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Journal Article
Effectiveness of a neonatal intensive care unit–specific antimicrobial stewardship program: A ten-year review
2023
Overview
To evaluate the change in consumption of specific antibiotics in a neonatal intensive care unit after the implementation of an antimicrobial stewardship program (ASP).
Retrospective cohort study between January 1, 2010, and December 31,2019.
The neonatal intensive care unit at British Columbia Women's Hospital (Vancouver Canada), a tertiary-care center.
Admitted neonates prescribed antibiotics.
We implemented an ASP with an early implementation phase starting in January 2014 (period 2) and a later phase starting in January 2017 (period 3). Patient demographics were collected, including birth weight, gestational age, history of necrotizing enterocolitis (NEC), and surgical operations from existing databases. Interrupted time-series analysis was used, and comparison of antibiotic days of therapy (DOT) averages were conducted across the preimplementation period (period 1), period 2, and period 3 regarding total patients and subgroups.
We identified 4,512 infants. There was a significant decrease in DOT from 472 (95% confidence interval [CI], 431-517) in period 1 to 405 (95% CI, 367-446) in period 2 to 313 (95% CI, 280-350) in period 3. We detected a significant decrease in the use of ampicillin, aminoglycosides, cloxacillin, and linezolid but not in vancomycin or cefotaxime. Subgroup analyses of infants <1,500 g and those without NEC or surgery showed decreases in the use of cloxacillin, aminoglycosides, and linezolid.
The implementation of an ASP was associated with a significant decrease in the overall DOT and use of certain antibiotics. This study presents important targets for ongoing ASP work.
