Point prevalence study of antibiotic appropriateness and possibility of early discharge from hospital among patients treated with antibiotics in a Swiss University Hospital.

Moulin, Estelle; Boillat-Blanco, Noémie; Zanetti, Giorgio; Plüss-Suard, Catherine; de Vallière, Serge; Senn, Laurence (2022). Point prevalence study of antibiotic appropriateness and possibility of early discharge from hospital among patients treated with antibiotics in a Swiss University Hospital. Antimicrobial resistance and infection control, 11(1), p. 66. BioMed Central 10.1186/s13756-022-01104-z

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BACKGROUND

The growing threat of multidrug resistant organisms have led to increasingly promote prudent and rational use of antimicrobials as well as early hospital discharge plan. Antibiotic stewardship programs (ASP) have been developed as multifaceted approaches to improve use of current antibiotics and are now widely applied through different strategies. Proactive interventions are still limited in Switzerland and data on antimicrobial appropriateness and early discharge strategies are lacking. We aimed to describe the opportunities of antibiotics prescriptions optimization at Lausanne University Hospital, Switzerland and evaluate the suitability for early discharge among patients receiving antibiotics. The need for outpatient medical structures was also assessed.

METHODS

We conducted a point prevalence survey of antibiotic prescriptions in adult medical and surgical units with exclusion of intermediate and intensive care units. All hospitalized patients receiving a systemic antibiotic on the day of evaluation were included. An infectious diseases specialist evaluated antimicrobial appropriateness and assessed suitability for discharge according to medical and nursing observations. The need of flexible additional outpatient facility for a close medical follow-up was evaluated concomitantly.

RESULTS

A total of 564 patients' files were reviewed. 182 (32%) patients received one or more systemic antibiotic: 62 (34%) as a prophylaxis and 120 (66%) as a treatment with or without concomitant prophylaxis. 37/62 (60%) patients receiving prophylaxis had no indication to continue the antibacterial. Regarding the patients treated with antibiotics, 69/120 (58%) presented at least one opportunity for treatment optimization, mainly interruption of treatment. A previous ID consultation was recorded for 55/120 (46%) patients, of whom 21 (38%) could have benefited from antimicrobial therapy optimization on the day of the point assessment. 9.2% patients were eligible for discharge of whom 64% could leave the hospital with a close outpatient follow-up for infectious issues.

CONCLUSIONS

This point prevalence study offers precious indicators for tailoring future antibiotic stewardship interventions that can be combined with early discharge. Any centre considering implementing ASP should conduct this type of analysis with a pragmatic approach to gain insight into local practices and needed resources.

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