Open and Closed Approaches to Skin Closure After Nonelective Open Colorectal Operations

Introduction Optimal wound management strategies to reduce surgical site infections (SSIs) in nonelective open colorectal surgery (NOCS) remain controversial and variable. Our aim is to describe SSI and other 30-day outcome measures among patients with varying wound management techniques undergoing NOCS. Methods All NOCS patients were extracted from the 2016 to 2018 ACS-NSQIP database. Outcomes of patients managed with all layers closed (ALC) were compared to patients managed with skin open (SO), using propensity score matching (PSM) to control for significant confounding risk factors for SSI. Results A total of 40,820 patients were included; 4622 patients managed with SO and 36,198 managed with ALC. Patients in the SO group were more likely to have a history of hypertension, renal failure, chronic obstructive pulmonary disease, smoking, obesity, and sepsis on presentation (P < .001). After PSM, no differences in risk factors remained; 4622 and 4344 patients were included in the SO and ALC cohorts, respectively. While ALC patients experienced a higher rate of superficial SSI (1.4% vs 7.3%, P < .001) and any wound complications (6.8% vs 10.8%, P < .001), the SO group had higher wound dehiscence (4.4% vs 2.8%, P < .001). There were no significant differences in deep wound infection. The SO group had longer average length of stay (14.7 vs 13.1 days, P < .001), higher non-wound-related complications, discharge to SNF, and in-hospital mortality. Discussion Significant differences in SSI rates among NOCS patients with differing wound management techniques were observed. More notably, other important quality measures, such as length of stay, disposition, mortality, and non-wound-related complications were also significantly impacted by wound management strategy.