Impact of an Antimicrobial Stewardship Program on Resistance to Fluoroquinolones of Urinary Enterobacteriaceae Isolated From Nursing Home Residents: A Retrospective Cohort Study.

Objectives: This study investigated the impact of an antimicrobial stewardship program on fluoroquinolone (FLQ) resistance in urinary Enterobacteriaceae isolated from residents of 3 French nursing homes.

Design: A multicentric retrospective before-and-after study was conducted.

Setting And Participants: All the first urinary Enterobacteriaceae isolates obtained from nursing home residents were included.