Closed-Incision Negative Pressure Therapy Decreases Wound Morbidity in Open Abdominal Wall Reconstruction With Concomitant Panniculectomy

Abstract

Introduction: Patients undergoing abdominal wall reconstruction (AWR) with concomitant panniculectomy (CP) may be at higher risk for wound complications due to the need for large incisions and tissue undermining. The aim of this study was to evaluate whether the use of closed-incision negative pressure therapy (ciNPT) decreases wound complications in AWR patients undergoing CP.

Methods: Beginning in February 2018, all patients at this institution who underwent AWR with CP received ciNPT. These patients were identified from a prospectively maintained institutional database. A standard dressing (non-NPT) group was then created in a 1:1 fashion by identifying patients who had AWR with CP immediately before the beginning of ciNPT use (2016-2018). A univariate comparison was made between the ciNPT and non-NPT groups. The primary outcome was wound complication rate; however, other perioperative outcomes, such as requirement for reoperation, were also tracked. Standard statistical methods and logistic regression were used.

Results: In total, 134 patients met criteria, with 67 patients each in the ciNPT and non-NPT groups. When comparing patients in the ciNPT and non-NPT groups, they were demographically similar, including body mass index, smoking, and diabetes (P < 0.05). Hernias was large on average (289.5 ± 158.2 vs 315.3 ± 197.3 cm2, P = 0.92) and predominantly recurrent (58.5% vs 72.6%, P = 0.14). Wound complications were much lower in the ciNPT group (15.6% vs 35.5%, P = 0.01), which was mainly driven by a decrease in superficial wound breakdown (3.1% vs 19.7%, P < 0.01). Patients in the ciNPT group were less likely to require a return trip to the operating room for wound complications (0.0% vs 13.3%, P < 0.01). In logistic regression, the use of ciNPT continued to correlate with reduced wound complication rates (P = 0.02).

Conclusions: In AWR with CP, the use of ciNPT significantly decreased the risk of postoperative wound complications, particularly superficial wound breakdown, and lessened the need for wound-related reoperation.