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1305. Current Management of Osteoarticular Infections by Infectious Diseases Physicians: Results of an Emerging Infections Network (EIN) Survey
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1305. Current Management of Osteoarticular Infections by Infectious Diseases Physicians: Results of an Emerging Infections Network (EIN) Survey

Nicolas W Cortes-Penfield, Susan E Beekmann, Philip M Polgreen, Keenan L Ryan and Poorani Sekar
Open forum infectious diseases, Vol.10(Supplement_2), pp.S589-S590
11/27/2023
DOI: 10.1093/ofid/ofad500.1144
PMCID: PMC10677013
url
https://doi.org/10.1093/ofid/ofad500.1144View
Published (Version of record) Open Access

Abstract

Abstract Background Osteoarticular infections (OAI) have been commonly treated with prolonged intravenous (IV) antimicrobials. The Oral versus Intravenous Antibiotics for Bone and Joint Infection (OVIVA) trial demonstrated that oral (PO) antibiotic therapy was noninferior to IV antibiotics in the treatment of OAIs. We surveyed Infectious disease (ID) physicians to see how often they used PO antibiotics in the treatment of OAIs and the barriers to using PO antibiotics. Methods An EIN survey was sent to 1475 ID physicians. The survey had 9 questions pertaining to antibiotic prescribing patterns in the treatment of OAIs. The questions were mostly multiple choice, Yes/No questions with an area provided for free text. Definitive oral antibiotic therapy was defined as switching to PO antibiotics within 2 weeks of starting antibiotics. Results There were 413 respondents who treated OAIs and responded to the survey. A plurality of respondents 150/413 (36%) switched from IV to PO antibiotics after 4 weeks of IV therapy. 129/413 (31%) switched to oral antibiotics as definitive treatment (Fig 1). PO antibiotics were used as definitive therapy most often for diabetic foot osteomyelitis and native joint septic arthritis (Fig 2). Trimethoprim-sulfamethoxazole was most often used as definitive therapy for Staphylococcus aureus infections followed by doxycycline/minocycline. Amoxicillin/ cefadroxil/ cephalexin was used for treatment of streptococcal infections and fluoroquinolones were used as definitive treatment for infections caused by Gram-negative organisms. The most common reasons for not transitioning to PO antibiotics included non-susceptible pathogen, comorbidities preventing therapeutic drug levels and concern about adherence For the following infections, how often do you use oral antibiotics as definitive therapy? Conclusion A sizeable portion of ID physicians utilize PO antibiotics for the management of OAIs, although significant practice variation exists regarding the timing of IV to PO switch. Disclosures Philip M. Polgreen, MD, Eli Lilly: Case adjudication for a clinical trial Keenan L. Ryan, PharmD, PhC, PharmCon: Honoraria

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