Preperitoneal Ventral Hernia Repair: A Decade Long Prospective Observational Study With Analysis of 1023 Patient Outcomes.

Objectives: The aim of this study was to examine the outcomes of over a decade's experience utilizing preperitoneal ventral hernia repair (PP-VHR). Background: PP-VHR was first described by our group in 2006, and there have been no subsequent reports of outcomes with this technique. Methods: A prospective study of all PP-VHR from January, 2004 to April, 2016 was performed. Multivariate stepwise logistic regression and Cox proportional-hazard models were used to identify predictors of wound complications and hernia recurrence, respectively. Results: There were 1023 PP-VHRs. Mean age was 57.2 +/- 12.6 years, BMI 33.7 +/- 11.4 kg/m(2), defect size 210.0 +/- 221.4 cm(2); 23.7% had diabetes, 13.9% were smokers, 68.7% were recurrent, and 23.6% incarcerated. Component separation was required in 43.6%, and a panniculectomy was performed in 30.0%. Wound complication was present in 27.3% of patients, with 1.7% having a mesh infection. In all, there were 53 (5.2%) hernia recurrences and 36 (3.9%) in the synthetic repairs, with a mean follow-up of 27.0 +/- 26.4 months. On multivariate regression (odds ratio or hazard ratio, 95% confidence interval), diabetes (1.9, 1.4-3.0), panniculectomy (2.6, 1.8-3.9), and operations requiring biologic mesh were predictors of wound complications, whereas recurrent hernia repair (2.69, 1.14-6.35), biologic mesh (3.1, 1.67-5.75), and wound complications (3.01, 1.69-5.39) were predictors of hernia recurrence. Conclusions: An open PP-VHR is a very effective means to repair large, complex, and recurrent hernias resulting in a low recurrence rate. Mesh choice in VHR is important and was associated with hernia recurrence and wound complications in this population.