Abdominal Contouring Outcomes in Class III Obesity: Analysis of the ACS-NSQIP Database.

Background: Obesity may increase the risk of complications following abdominal contouring. The aim of this study is to evaluate panniculectomy outcomes in patients with class III obesity (BMI > 40 kg/m).

Methods: The American College of Surgeon's National Surgical Quality Improvement Program ACS-NSQIP (2010-2014) was used to identify patients who underwent panniculectomy. Class III obesity patients were identified. Demographics, comorbidities and postoperative outcomes were evaluated. Risk-adjusted multivariate logistic regression analyses were performed to assess impact of class III obesity on panniculectomy outcomes.

Results: A total of 4497 panniculectomies were identified. Of these, 545 (12.1%) were performed in patients with class III obesity. This group was older (mean age 50.3 vs. 45.9, p < 0.01) with a higher proportion of men (23.4 vs. 12.4%, p < 0.01). Class III obesity group also had higher rates of comorbidities (p < 0.01). Postoperatively, class III obesity patients experienced much higher rates of wound complications (17.8 vs. 6.8%), sepsis (3.3 vs. 0.8%), venous thromboembolism (1.5 vs. 0.7%) and medical complications (6.4 vs. 1.8%), p < 0.05. Additionally, this group had higher rates of unplanned reoperation (9.2 vs. 3.7%) and 30-day readmissions (3.5 vs. 1.0%), p < 0.01. On risk-adjusted multivariate regression analyses, class III obesity was independently associated with increased risk of wound complications (OR 2.22, p < 0.01), sepsis (OR 3.53, p < 0.01), medical adverse events (OR 1.98, p < 0.05), unplanned reoperation (OR 1.62, p < 0.05) and 30-day readmission (OR 2.30, p < 0.05).

Conclusion: Class III obesity patients are at significantly increased risk of adverse outcomes following abdominal contouring. Plastic surgeons should consider these risks for counseling and preoperative risk optimization.

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