Can a free weight management program "move the needle" for obese patients preparing for hernia surgery?: outcomes of a novel pilot program.

Purpose: Obesity is known to result in increased morbidity and risk of hernia recurrence after ventral hernia repair; however, many patients lack the resources to pursue guided weight loss. We sought to evaluate the effectiveness of a free Weight Management Navigator (WMN) program on preoperative weight loss for patients with Class 2 or 3 obesity and complex ventral hernias seeking surgical repair.

Methods: From September 2019 and December 2020, all patients with BMI ≥ 35 kg/m and ventral hernias seeking surgical care were identified in outpatient clinics at a high-volume hernia center and were offered participation in a free WMN program by the attending surgeon. Descriptive analysis was performed to analyze participation in the program and average weight loss during study period.

Results: One hundred ninety one patients were identified. Most patients declined to participate in a weight loss program, were unable to be reached, or did not respond to the WMN (58.1%). Eighty patients enrolled in a WMN program, forty-four of which were lost to follow-up (55%). Seventeen patients underwent hernia repair, nine of which were enrolled in a WMN program. Mean weight loss for those enrolled in a program was 5.97 kg compared to 1.8 kg for those who did not participate (p = 0.01).

Conclusion: Enrollment in weight loss programs was low despite encouragement from surgeons, free programs, and accessible platforms. Participation in the WMN correlated with more successful weight loss. Our findings suggest that inability to lose weight may be multifactorial. Further study should be devoted to determining other common barriers to weight loss.