Description of changes in clinical outcomes following the implementation of an antibiotic stewardship program in a level IV hospital
Abstract
Introduction. Inadequate prescription of antibiotics has been recognized as a public health problem by the World Health Organization. In this context, antibiotic stewardship programs have been implemented as a tool to mitigate its impact.
Objective. To describe the changes in clinical outcomes after the implementation of an antibiotic stewardship program in a level IV hospital.
Materials and methods. We conducted a unique cohort study of patients hospitalized for infectious pathologies that were treated with antibiotics in an advanced medical facility. We collected the clinical history before the implementation of the antibiotic stewardship program (2013 to 2015) and then we compared it to the records from 2018 to 2019 collected after the implementation of the program. We evaluated changes in clinical outcomes such as overall mortality, and hospital stay, among others.
Results. We analyzed 1,066 patients: 266 from the preimplementation group and 800 from the post-implementation group. The average age was 59.2 years and 62% of the population was male. Statistically significant differences were found in overall mortality (29% vs 15%; p<0.001), mortality due to infectious causes (25% vs 9%; p<0.001), and average hospital stay (45 days vs 21 days; p<0.001); we also observed a tendency to decrease hospital readmission at 30 days for infectious causes (14% vs 10%; p=0.085).
Conclusions. The antibiotic stewardship program implemented was associated with a decrease in overall mortality and mortality due to infectious causes, as well as in average hospital stay. Our results evidenced the importance of interventions aimed at mitigating the impact of inadequate prescription of antibiotics.
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References
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