Aims: The purpose of this study is to assess the efficacy of prophylactic negative pressure wound therapy (NPWT) in obese women undergoing caesarean section.
Design: An updated review and meta-analysis of randomized controlled trials following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines.
Methods: PubMed, Embase, Medline, Web of Science, and Cochrane Library were searched from inception up to March 2022 without restriction in language. We chose surgical site infection as the primary outcome.
Results: NPWT resulted in a lower surgical site infection rate compared with conventional dressing (risk ratio [RR] = 0.76). The infection rate after low transverse incision was lower comparing the NPWT group with the control group ([RR] = 0.76). No statistically significant difference was detected in blistering([RR] = 2.91). The trial sequential analysis did not support the 20% relative decrease in surgical site infection in the NPWT group. (type II error of 20%).
Keywords: caesarean section; meta-analysis; negative-pressure wound therapy; nursing care; obesity; randomized controlled trial.
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