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  • Title: Prophylactic Mesh for Prevention of Parastomal Hernia Following End Colostomy: an Updated Systematic Review and Meta-Analysis of Randomized Controlled Trials.
    Author: McKechnie T, Lee J, Lee Y, Doumouras A, Amin N, Hong D, Eskicioglu C.
    Journal: J Gastrointest Surg; 2022 Feb; 26(2):486-502. PubMed ID: 34671916.
    Abstract:
    OBJECTIVE: To evaluate the efficacy of prophylactic mesh placement during end colostomy formation at reducing rates of parastomal hernia using the most recently available data. BACKGROUND: Systematic reviews and meta-analyses of randomized controlled trials (RCTs) have uniformly concluded that the use of prophylactic surgical mesh when fashioning an end colostomy reduces the risk of parastomal hernia. However, recent RCTs have failed to corroborate these findings. This study was designed to provide an updated systematic review and meta-analysis evaluating the efficacy of prophylactic mesh placement during end colostomy formation. METHODS: A search of Medline, EMBASE, and CENTRAL was performed. Articles were included if they were RCTs that compared the use of prophylactic mesh to no prophylactic mesh during construction of an end colostomy following colorectal resection for benign or malignant disease. The primary outcome was parastomal hernia rate. A pairwise meta-analysis was performed using inverse variance random effects. RESULTS: From 1,089 citations, 12 RCTs with 581 patients having prophylactic mesh placement and 671 patients not having prophylactic mesh placement met inclusion criteria. Incidence of parastomal hernia was significantly reduced in patients receiving prophylactic mesh (OR 0.60, 95% CI 0.46 to 0.80, p = 0.0003, I2 = 74%). Results were no longer significantly different when only studies conducted in the last 5 years were analyzed (p = 0.10). There was no significant difference in postoperative morbidity, postoperative mortality, colostomy-specific morbidity, or length of stay between groups. CONCLUSIONS: There remains a significant reduction in the risk of parastomal hernia with the use of prophylactic mesh at the time of end colostomy formation, despite recent evidence suggesting no difference. Further contemporary trials with the application of modern surgical technology are required.
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