• Erling Oma, Thue Bisgaard, Lars N Jorgensen, and Kristian K Jensen.
• Digestive Disease Center, Bispebjerg Hospital, Bispebjerg Bakke 23, 2400, Copenhagen, NV, Denmark. erlingom@gmail.com.
• World J Surg. 2019 Jun 1; 43 (6): 1497-1504.

BackgroundMesh reinforcement is recommended for repair of primary ventral hernias; however, this recommendation does not consider a potential subsequent pregnancy. The aim of this prospective cohort study was to compare mesh and suture repair of a primary ventral hernia in women with a subsequent pregnancy.MethodsAll women of childbearing age who underwent repair of a primary ventral hernia between 2007 and 2014 were identified in the Danish Ventral Hernia Database. Data were merged with the Danish Medical Birth Registry. Women with a subsequent pregnancy and a propensity-score matched control group of women without a subsequent pregnancy were included. A structured questionnaire was sent out, and the primary outcome was hernia recurrence, while the secondary outcome was chronic postoperative pain.ResultsIn total, 632 women were included, of whom 441 (69.8%) responded to the questionnaire (195 and 246 with and without subsequent pregnancy, respectively). The 8-year cumulative incidence of recurrence was 24.8%. In women with a subsequent pregnancy, mesh repair was associated with a decreased risk of recurrence (hazard ratio 0.44, 95% CI 0.20-0.95, p = 0.038, number needed to treat = 5.1) and an increased risk of chronic pain (OR 5.07, 95% CI 1.20-23.38, p = 0.029, number needed to harm = 4.7) compared with suture repair, in multivariable analyses.ConclusionsMesh repair was associated with a decreased risk of recurrence, but an increased risk of chronic pain, compared with suture repair in women with a subsequent pregnancy.

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