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Efficacy of a Postprescription Review of Broad-Spectrum Antimicrobial Agents With Feedback: A 4-Year Experience of Antimicrobial Stewardship at a Tertiary Care Center
Journal article   Open access   Peer reviewed

Efficacy of a Postprescription Review of Broad-Spectrum Antimicrobial Agents With Feedback: A 4-Year Experience of Antimicrobial Stewardship at a Tertiary Care Center

Hitoshi Honda, Shutaro Murakami, Yasuaki Tagashira, Yuki Uenoyama, Kaoru Goto, Akane Takamatsu, Shinya Hasegawa and Yasuharu Tokuda
Open forum infectious diseases, Vol.5(12), p.ofy314
12/01/2018
DOI: 10.1093/ofid/ofy314
PMID: 30555853
url
https://doi.org/10.1093/ofid/ofy314View
Published (Version of record) Open Access

Abstract

Background. An inpatient antimicrobial stewardship program is vital for judicious antimicrobial use. We began a hospital-wide, postprescription review with feedback (PPRF) in 2014; the present study evaluated its impact on antimicrobial consumption and clinical outcomes over 4 years. Methods. Once-weekly PPRF for carbapenems and piperacillin/tazobactam was implemented. We tracked the data on each antimicrobial use as days of therapy (DOT) per 1000 patient-days (PD). Changes in the incidence of drug-resistant organisms, in-hospital mortality, and length of hospital stay per month were analyzed by an interrupted time series. Results. Carbapenem use continued to decline in the preintervention and intervention periods (-0.73 and -0.003 DOT/1000 PD, respectively), and although monthly average use remained low in the intervention period (8.3 DOT/1000 PD), more importantly, the postintervention change in the slope diminished significantly. Piperacillin/tazobactam use showed a steeper decline in the intervention period, but the change in the slope was not statistically significant (change in slope: -0.20 DOT/1000 PD per month [P =.16]). Postintervention use of narrower-spectrum antimicrobials including ampicillin/sulbactam (change in slope: +0.58 DOT/1000 PD per month [P <.001]) increased. The antimicrobial cost and the monthly average length of hospital stay also declined (-37.4 USD/1000 PD per month [P <.001] and -0.04 days per month [P <.001], respectively), whereas few postintervention changes in the incidence of drug-resistant organisms were observed. Conclusions. In our study, the 4-year PPRF for broad-spectrum antimicrobials coincided with a reduction in the use of targeted antimicrobials and resulted in an improvement in 1 patient-centered outcome, thus conferring the additional benefit of reducing expenditures for antimicrobials.
Immunology Infectious Diseases Life Sciences & Biomedicine Microbiology Science & Technology

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