Prophylactic Negative Pressure Dressing Use in Closed Laparotomy Wounds Following Abdominal Operations

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Abstract

A randomized controlled trial was undertaken to investigate the effect of prophylactic negative pressure dressings on postoperative surgical site infection (SSI) rates in closed laparotomy wounds.

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Effect of negative pressure wound therapy on wound healing.

Chenyu Huang, Tripp Leavitt, Lauren Bayer … (2014)

The efficacy of NPWT in promoting wound healing has been largely accepted by clinicians, yet the number of high-level clinical studies demonstrating its effectiveness is small and much more can be learned about the mechanisms of action. In the future, hopefully we will have the data to assist clinicians in selecting optimal parameters for specific wounds including interface material, waveform of suction application, and the amount of suction to be applied. Further investigation into specific interface coatings and instillation therapy are also needed. We believe that advances in mechanobiology, the science of wound healing, the understanding of biofilms, and advances in cell therapy will lead to better care for our patients.

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Incisional negative pressure wound therapy after high-risk lower extremity fractures.

Thomas Moore, Gerald McGwin, James Stannard … (2011)

To investigate negative pressure wound therapy (NPWT) to prevent wound dehiscence and infection after high-risk lower extremity trauma. Prospective randomized multicenter clinical trial. Four Level I trauma centers. Blunt trauma patients with one of three high-risk fracture types (tibial plateau, pilon, calcaneus) requiring surgical stabilization. Incisional NPWT (Group B) was applied to the closed surgical incisions of patients randomized to the study arm of this trial, whereas standard postoperative dressings (Group A) were applied to the control patients. Acute and chronic wound dehiscence and infection. Two hundred forty-nine patients with 263 fractures have enrolled in this study with 122 randomized to Group A (controls) and 141 to Group B (NPWT). There was no difference between the groups in the distribution of calcaneus (39%), pilon (17%), or tibial plateau (44%) fractures. There were a total of 23 infections in Group A and 14 in Group B, which represented a significant difference in favor of NPWT (P = 0.049). The relative risk of developing an infection was 1.9 times higher in control patients than in patients treated with NPWT (95% confidence interval, 1.03-3.55). There have been no studies evaluating incisional NPWT as a prophylactic treatment to prevent infection and wound dehiscence of high-risk surgical incisions. Our data demonstrate that there is a decreased incidence of wound dehiscence and total infections after high-risk fractures when patients have NPWT applied to their surgical incisions after closure. There is also a strong trend for decreases in acute infections after NPWT. Based on our data in this multicenter prospective randomized clinical trial, NPWT should be considered for high-risk wounds after severe skeletal trauma.

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Meta‐analysis of negative‐pressure wound therapy for closed surgical incisions

N. Hyldig, H. Birke‐Sorensen, Elisabeth M. Kruse … (2016)

Abstract Background Postoperative wound complications are common following surgical procedures. Negative‐pressure wound therapy (NPWT) is well recognized for the management of open wounds and has been applied recently to closed surgical incisions. The evidence base to support this intervention is limited. The aim of this study was to assess whether NPWT reduces postoperative wound complications when applied to closed surgical incisions. Methods This was a systematic review and meta‐analysis of randomized clinical trials of NPWT compared with standard postoperative dressings on closed surgical incisions. Results Ten studies met the inclusion criteria, reporting on 1311 incisions in 1089 patients. NPWT was associated with a significant reduction in wound infection (relative risk (RR) 0·54, 95 per cent c.i. 0·33 to 0·89) and seroma formation (RR 0·48, 0·27 to 0·84) compared with standard care. The reduction in wound dehiscence was not significant. The numbers needed to treat were three (seroma), 17 (dehiscence) and 25 (infection). Methodological heterogeneity across studies led to downgrading of the quality of evidence to moderate for infection and seroma, and low for dehiscence. Conclusion Compared with standard postoperative dressings, NPWT significantly reduced the rate of wound infection and seroma when applied to closed surgical wounds. Heterogeneity between the included studies means that no general recommendations can be made yet.