Edward W Swanson1, Hsu-Tang Cheng2, Srinivas M Susarla1, Denver M Lough1, Anand R Kumar1. 1. Department of Plastic and Reconstructive Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA. 2. Department of Plastic and Reconstructive Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; Division of Plastic and Reconstructive Surgery, Department of Surgery, China Medical University Hospital, China Medical University School of Medicine, Taichung City, Taiwan.
Abstract
BACKGROUND: Despite advances in surgical technique, ventral hernia repair (VHR) remains associated with significant postoperative wound complications. OBJECTIVE: A systematic review and meta-analysis was performed to identify whether the application of negative pressure wound therapy to closed incisions (iNPWT) following VHR reduces the risk of postoperative wound complications and hernia recurrence. METHODS: The PubMed/MEDLINE, EMBASE and SCOPUS databases were searched for studies published through October 2015. Publications that met the following criteria were included: adult patients undergoing VHR; comparison of iNPWT with conventional dressings; and documentation of wound complications and/or hernia recurrence. The methodological quality of included studies was independently assessed using the Methodological Index for Non-Randomized Studies guidelines. Outcomes assessed included surgical site infection (SSI), wound dehiscence, seroma, and hernia recurrence. Meta-analysis was performed to obtain pooled ORs. RESULTS: Five retrospective cohort studies including 477 patients undergoing VHR were included in the final analysis. The use of iNPWT decreased SSI (OR 0.33 [95% CI 0.20 to 0.55]; P<0.0001), wound dehiscence (OR 0.21 [95% CI 0.08 to 0.55]; P=0.001) and ventral hernia recurrence (OR 0.24 [95% CI 0.08 to 0.75]; P=0.01). There was no statistically significant difference in the incidence of seroma formation (OR 0.59 [95% CI 0.27 to 1.27]; P=0.18). CONCLUSION: For patients undergoing VHR, current evidence suggests a decreased incidence in wound complications using incisional NPWT compared with conventional dressings.
BACKGROUND: Despite advances in surgical technique, ventral hernia repair (VHR) remains associated with significant postoperative wound complications. OBJECTIVE: A systematic review and meta-analysis was performed to identify whether the application of negative pressure wound therapy to closed incisions (iNPWT) following VHR reduces the risk of postoperative wound complications and hernia recurrence. METHODS: The PubMed/MEDLINE, EMBASE and SCOPUS databases were searched for studies published through October 2015. Publications that met the following criteria were included: adult patients undergoing VHR; comparison of iNPWT with conventional dressings; and documentation of wound complications and/or hernia recurrence. The methodological quality of included studies was independently assessed using the Methodological Index for Non-Randomized Studies guidelines. Outcomes assessed included surgical site infection (SSI), wound dehiscence, seroma, and hernia recurrence. Meta-analysis was performed to obtain pooled ORs. RESULTS: Five retrospective cohort studies including 477 patients undergoing VHR were included in the final analysis. The use of iNPWT decreased SSI (OR 0.33 [95% CI 0.20 to 0.55]; P<0.0001), wound dehiscence (OR 0.21 [95% CI 0.08 to 0.55]; P=0.001) and ventral hernia recurrence (OR 0.24 [95% CI 0.08 to 0.75]; P=0.01). There was no statistically significant difference in the incidence of seroma formation (OR 0.59 [95% CI 0.27 to 1.27]; P=0.18). CONCLUSION: For patients undergoing VHR, current evidence suggests a decreased incidence in wound complications using incisional NPWT compared with conventional dressings.
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