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  • Title: Preoperative methicillin-resistant Staphylococcus aureus screening in Mohs surgery appears to decrease postoperative infections.
    Author: Cordova KB, Grenier N, Chang KH, Dufresne R.
    Journal: Dermatol Surg; 2010 Oct; 36(10):1537-40. PubMed ID: 20698869.
    Abstract:
    BACKGROUND: Colonization with methicillin-resistant Staphylococcus aureus (MRSA) places patients at risk for postoperative MRSA wound infections. OBJECTIVE: To determine the effect of a decontamination and prophylaxis protocol on postoperative MRSA wound infections in patients with nasal MRSA. METHODS & MATERIALS: Wound cultures over a 23-month period were reviewed before and 11 months after implementation of a screening and decontamination protocol. After preoperative MRSA screening with nasal swabs, carriers were instructed to use intranasal mupirocin for 5 to 7 days before surgery and 5 to 7 days of trimethoprim-sulfamethoxazole starting the day before surgery. RESULTS: During the 23 months before prescreening evaluation, we performed 3,633 Mohs surgical cases, and 12 postoperative MRSA wound infections (0.3%) occurred. Subsequently, 963 patients underwent screening for MRSA, and 23 MRSA carriers were identified (2.4%). Of the 22 who underwent the decontamination and treatment protocol, none developed postoperative wound infections. One MRSA carrier did not receive preoperative treatment and subsequently developed a MRSA wound infection. There were no other MRSA infections. CONCLUSION: Preoperative MRSA screening and implementation of a decontamination protocol appears to decrease postoperative MRSA wound infections after Mohs surgery. Although an interesting observation, controlled studies of clinical and cost effectiveness are required before general implementation. The authors have indicated no significant interest with commercial supporters.
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