Abdominal Body Contouring: Does Body Mass Index Affect Clinical and Patient Reported Outcomes?

[BACKGROUND] Obese individuals are thought to be higher risk for complications after excisional abdominal body contouring (EAC) due to co-morbidities and significant tissue resection.

[OBJECTIVES] We comparatively analyzed EAC patients with Body Mass Index (BMI) ≥35 kg/m and BMI <35 kg/m to highlight key differences in clinical and patient-reported-outcomes (PROs).

[METHODS] Patients ≥18 years-old undergoing EAC by a single surgeon from 01/2018-01/2020 were identified and separated into cohorts based on BMI (<35 and ≥35 kg/m). Patients were excluded if they had a cosmetic abdominoplasty without history of bariatric surgery or massive weight loss, or if they had <1000 gs of tissue resected. Clinical outcomes and PROs using the BODY-Q were comparatively analyzed.

[RESULTS] 70 total patients with median BMIs of 30[26-32] and 41[37-45] kg/m in each cohort, were identified. Patients with BMI ≥35 kg/m were more likely to have higher ASA (P<0.01) and use of incisional negative pressure wound devices (P = 0.042). Alternatively, they were less likely to have had concurrent liposuction (P = 0.05). There were no differences in development of an SSO, SSI or SSOpi (P>0.05) between cohorts. Multivariate logistic regression showed that BMI ≥35 kg/m, iNPWD and liposuction were not associated with the development of complications. PROs demonstrated improvement in multiple domains despite BMI.

[CONCLUSION] There was no association with BMI ≥35 kg/m and the development of complications within our cohort. We encourage preoperative weight loss when possible, however these procedures can be performed safely with acceptable outcomes even in individuals who are obese and/or require extensive tissue removal.