• Nathan W Kugler, Thomas W Carver, and Jasmeet S Paul.
• Division of Trauma and Critical Care, Department of Surgery, Medical College of Wisconsin, Milwaukee, Wisconsin. Electronic address: nkugler@mcw.edu.
• J. Surg. Res. 2016 Jun 15; 203 (2): 491-4.

BackgroundCDC wound classification demonstrates surgical site infection (SSI) occurs in 15%-30% of contaminated (class III) and >30% of dirty-infected (class IV) wounds. Several techniques have been used to decrease SSI rates in midline laparotomy incisions; however, no technique has shown superiority. Evidence suggests incisional negative pressure wound therapy (INPWT) can decrease wound complications, but no literature exists regarding INPWT for high-risk laparotomy incisions. We sought to analyze the efficacy of INPWT in the management of high-risk midline laparotomy incisions.MethodsRetrospective review of adult patients who underwent laparotomy between January 2013 and June 2014 with midline closure using INPWT. Only class III or IV wounds were included. Laparotomy incisions were loosely closed. INPWT set at 125 mm Hg is placed over oil emulsion impregnated gauze. INPWT is removed after 5 d and the wound left open to air. Records were reviewed for immediate and/or delayed surgical site complications. Primary end point was 30-d incisional SSI. Secondary end points included other surgical site complications.ResultsOne class III and 12 class IV wounds were treated with INPWT for a median of 5 d. The class III wound developed a small skin dehiscence with no evidence of superficial or deep SSI. Among class IV wounds, the rate of superficial and deep incisional SSI was 25% and 0%, respectively. The overall surgical site complication rate was 41.7%.ConclusionsINPWT in closure of high-risk midline laparotomy incisions is a safe, effective method of wound closure with equivalent SSI rates to previously described methods.Copyright © 2016 Elsevier Inc. All rights reserved.

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