[A Study of Outcome Measures and Establishment of Benchmarks for Antimicrobial Stewardship Programs]

Over the past few decades, the effectiveness of antibiotics has been diminished owing to the emergence of antimicrobial resistance resulting from the overuse of antibiotics. Antimicrobial stewardship aims to improve the appropriateness of antibiotic use to reduce antimicrobial resistance and benefit patients. Antimicrobial stewardship requires structural prerequisites for implementing antimicrobial stewardship programs (ASPs), such as the presence of a multidisciplinary antimicrobial stewardship team (AST), to ensure appropriate antimicrobial use at healthcare facilities. However, manpower shortage for ASTs in most Japanese hospitals has resulted in limited implementation of ASPs. Our study provided a directive for promotion of comprehensive ASPs including various outcome measures. Our findings would provide useful benchmarks for hospitals planning to implement ASPs in Japan as well as around the world. This review provides a framework for evaluating the outcome measures and benchmarks of ASPs based on our study.