Abstract
Limited research has evaluated the long-term outcomes of prospective audit and feedback (PAF) led by pharmacists. We assessed pharmacist-led PAF processes and outcome measures over 8 years. This study was conducted at a single public hospital in Japan. Between 2014 and 2021, pharmacists conducted weekday PAFs for hospitalized patients and annually evaluated the process and outcome measures. The endpoints included detection of drug-resistant bacteria, drug susceptibility rates, duration of antimicrobial therapy, and proportion of long-term administration. Among inpatients, methicillin-resistant Staphylococcus aureus significantly decreased from 50.9% in 2014 to 32.8% in 2021 (P<.001). The susceptibility rate of Pseudomonas aeruginosa to meropenem significantly increased from 91.2% in 2014 to 94.4% in 2021 (P<.001) and levofloxacin increased from 84.9% in 2014 to 89.3% in 2021 (P<.001). Antimicrobial therapy duration did not differ significantly between 2014 and 2016, but decreased significantly from 2017 onwards (P<.001), except in 2018. The number of patients receiving intravenous antimicrobials for >10 days decreased significantly between 2014 and 2021 (P<.001). Long-term continuous PAF interventions by pharmacists contribute to improving and maintaining process and outcome indicators and prevent the spread of drug-resistant bacteria.
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