[Improvement of antibiotic therapy adequacy with local guidelines and their reassessment through a multidisciplinary action: Prospective study in an Internal Medicine department].

INTRODUCTION

The implementation of antimicrobial stewardship actions is important in the fight against antimicrobial resistance. The objective of our study was to evaluate the impact of a multidisciplinary program on the adequacy of antibiotic prescriptions with local guidelines in terms of indication, molecule, dosage and treatment duration during the 48-72h reassessment in an internal medicine department.

METHOD

This was a before/after monocentric, prospective study. All patients hospitalized in the internal medicine department who were treated with antibiotics for at least 48h were included. The intervention had two components: training of residents about antibiotic treatment and development of a multidisciplinary 48-72h reassessment team. Our primary endpoint was the adequacy of prescriptions with local guidelines, assessed by an independent blinded committee. We also measured antibiotic consumptions.

RESULTS

One hundred and twelve patients were included. Adequacy with local recommendations increased from 57.1% to 97.8% (P<0.01), including for the duration of treatment. Traceability of reassessment in medical records increased from 65.3 % to 97.8 % (P<0.01). Finally, the part of consumption of antibiotics with high risk of resistance selection decreased during the period "after" (-10.2 %, P<0.01).

CONCLUSION

The set-up of a multimodal (association of pedagogic and incentive actions) and multidisciplinary (internist, clinical pharmacist and antimicrobial stewards) action improved the adequacy of antibiotic prescriptions with local guidelines.