• Michael Phillips, Andrew Rosenberg, Bo Shopsin, Germaine Cuff, Faith Skeete, Alycia Foti, Kandy Kraemer, Kenneth Inglima, Robert Press, and Joseph Bosco.
• New York University Hospital Center, New York, New York.
• Infect Control Hosp Epidemiol. 2014 Jul 1;35(7):826-32.

BackgroundTreatment of Staphylococcus aureus colonization before surgery reduces risk of surgical site infection (SSI). The regimen of nasal mupirocin ointment and topical chlorhexidine gluconate is effective, but cost and patient compliance may be a barrier. Nasal povidone-iodine solution may provide an alternative to mupirocin.MethodsWe conducted an investigator-initiated, open-label, randomized trial comparing SSI after arthroplasty or spine fusion in patients receiving topical chlorhexidine wipes in combination with either twice daily application of nasal mupirocin ointment during the 5 days before surgery or 2 applications of povidone-iodine solution into each nostril within 2 hours of surgical incision. The primary study end point was deep SSI within the 3 months after surgery.ResultsIn the modified intent-to-treat analysis, a deep SSI developed after 14 of 855 surgical procedures in the mupirocin group and 6 of 842 surgical procedures in the povidone-iodine group (P = .1); S. aureus deep SSI developed after 5 surgical procedures in the mupirocin group and 1 surgical procedure in the povidone-iodine group (P = .2). In the per protocol analysis, S. aureus deep SSI developed in 5 of 763 surgical procedures in the mupirocin group and 0 of 776 surgical procedures in the povidone-iodine group (P = .03).ConclusionsNasal povidone-iodine may be considered as an alternative to mupirocin in a multifaceted approach to reduce SSI.Trial RegistrationClinicalTrials.gov identifier: NCT01313182.

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