Negative Pressure Wound Therapy After Abdominal Body Contouring: A Comparative Matched Analysis of Outcomes and Cost

Abstract

Background: Studies that have previously validated the use of incisional negative pressure wound therapy (iNPWT) after body contouring procedures (BCP) have provided limited data regarding associated health care utilization and cost. We matched 2 cohorts of patients after BCP with and without iNPWT and compared utilization of health care resources and post-operative clinical outcomes. Methods: Adult patients who underwent abdominoplasty and/or panniculectomy between 2015 and 2020 by a single surgeon were identified. Patients were propensity score matched by body mass index (BMI), gender, smoking history, diabetes mellitus, hypertension, and incision type. Primary outcomes included time to final drain removal, outpatient visits, homecare visits, emergency department visits, and cost. Secondary outcomes included surgical site occurrences (SSO), surgical site infections, reoperations, and revisions. Results: One hundred sixty-six patients were eligible, and 40 were matched (20 with iNPWT and 20 without iNPWT) with a median age of 47 years and BMI of 32 kg/m². There were no differences in demographics or intraoperative details (all P > .05). No significant differences were found between the cohorts in terms of health care utilization measures or clinical outcomes (all P > .05). Direct cost was significantly greater in the iNPWT cohort (P = .0498). Inpatient length of stay and procedure time were independently associated with increased cost on multivariate analysis (all P < .0001). Conclusion: Consensus guidelines recommend the use of iNPWT in high-risk patients, including abdominal BCP. Our results show that iNPWT is associated with equivalent health care utilization and clinical outcomes, with increased cost. Additional randomized controlled trials are needed to further elucidate the cost utility of this technique in this patient population.