49 - Clinical Utility of Oseltamivir Restriction Policy

Background: Inappropriate use of oseltamivir and antibiotics for upper respiratory tract infections may increase risk of microbial resistance. Restriction policies have been used to curtail inappropriate use of oseltamivir and antimicrobials in suspected or confirmed influenza patients. We assessed the impact of Infectious Diseases (ID) consult on the management of oseltamivir and concomitant antibiotics.

Methods: A single‐center, retrospective study of patients ≥ 17 years, admitted for greater than 24 hours who received oseltamivir from October 1, 2018 to May 1, 2019 were evaluated. Demographics, Charlson Weighted Index of Comorbidity (CWIC), length of hospital stay (LOS), discharge disposition, rapid flu test, respiratory viral panel, sputum and blood cultures, antibiotic regimen and duration were collected. Continuous variables were analyzed using Students t‐test and categorical variables with Chi square test.

Results: 298 patients were screened and 182 patients met the inclusion criteria. Please see table below for results. Oseltamivir was appropriately continued in 92.9% in the ID consult group compared to 89.3% in the non-ID consult group (p = 0.51). Antibiotic interventions were appropriate in 63.2% of the ID consult group compared to 40% in non-ID group (p = 0.36).Results Summary


Conclusion: Oseltamivir interventions were appropriate and similar in between groups. Further, there was higher percentage of appropriate antibiotic interventions in the ID physician group. Duration of antibiotics was longer in the ID physicians consulted group which may be due to higher severity of illness in the group.