Intravenous cefuroxime as a first-line treatment for women hospitalized for pyelonephritis.

Background: Empirical treatment of pyelonephritis in the emergency ward includes broad-spectrum antibiotics. Such a strategy favours broad-spectrum antibiotic overuse. Local antibiotic stewardship teams can propose local recommendations to adapt empirical antibiotic treatment devoted to spare precious molecules that remain active on MDR bacteria, such as fluoroquinolones or other broad-spectrum antibiotics.

Objectives: We aimed to evaluate the incidence of urinary tract infection recurrence within 3 months after hospital discharge following empirical antibiotic therapy with cefuroxime in women with pyelonephritis in the emergency room.

Patients and methods: We conducted a retrospective, single-centre study. We identified 109 women treated for pyelonephritis, 95 with cefuroxime at any time, and 14 with only other antibiotics, and divided them into subgroups based on antibiotic switch to other molecules. We compared the incidence of urinary tract infection recurrence in the subgroups.

Results: In the group of patients treated with cefuroxime only, we identified five cases of recurrence (9.4%) in a total of 53 patients, but only 1 (1.9%) case of recurrence associated with the same uropathogen. No significant difference in clinical outcome, length of antibiotic treatment, or urinary tract infection recurrence was observed between the subgroups.

Conclusions: Our study supports that a strategy elaborated by an antibiotic stewardship team based on local ecology and aimed at proposing the narrowest-spectrum antibiotic upon treatment initiation in the emergency room is safe.