Methods: All inpatients administered oritavancin to expedite discharge and/or vancomycin for the treatment of ABSSSI between May 2017 and January 2018 were included in this retrospective evaluation. The primary endpoint was to determine the 30-day ABSSSI recurrence rate between treatment arms. The secondary endpoints were to evaluate financial expenditures associated with utilization of oritavancin as compared to vancomycin, and to assess for potential risk factors associated with poor outcomes. A financial analysis was performed for patients based on their DRG (diagnosis related group) applying hospital specific expenditures provided by the finance department. Data was analyzed using fisher’s exact test, chi-square test or t-test as appropriate.
Results: A total of 51 patients receiving oritavancin and 50 patients receiving vancomycin were identified as meeting inclusion criteria. Nine of 50 patients (18%) returned for recurrent infections in the vancomycin arm while only 2 of 51 (4%) returned in the oritavancin arm (p=0.0279). Out of the 11 patients with recurrent infections, 6 were current intravenous drug users (55%), 3 left against medical advice at their initial visit (27%) and 7 had an emergency department visit in the prior 30 days for the same infection (64%). Overall, there were 111.7 hospitalization days avoided in 51 patients receiving oritavancin, resulting in an estimated cost avoidance of $217,206 compared to conventional treatment with vancomycin.
Conclusion: Utilizing oritavancin to expedite discharge in hospitalized patients appears to be an effective and financially beneficial treatment for ABSSSI.
P. Ganapathiraju, None
S. Garrett, None
J. Reilly, None
M. Trivedi, None