Methods: A prospectively enrolled cohort of patients who underwent aesthetic surgery between 2008 and 2013 was identified from the CosmetAssureTM national insurance database. Primary outcome was occurrence of a major SSI requiring emergency room visit, hospital admission, or reoperation within 30 days of the index operation. Univariate and multivariate analysis evaluated potential risk factors for SSIs including age, gender, body mass index (BMI), smoking, diabetes mellitus, type of surgical facility, procedure by body region, and combined procedures.
Results: A total of 129,007 patients were captured in the database, of which 599 (0.46%) were diagnosed with a major SSI. Mean age (43.8±12.4 vs. 40.9±13.9, p<0.01) and BMI (27.3±5.5 vs. 24.3±4.6, p<0.01) were higher in patients with SSIs. Patients with a SSI were more likely to be smokers (10.5% vs. 8.2%, p=0.04) and diabetic (4.5% vs. 1.8%, p<0.01). Females suffered more SSI than males (0.5% vs. 0.3%, p=0.02). Trunk or extremity procedures had a higher incidence of SSI compared to breast or face procedures (0.9% vs. 0.2%, p<0.01). On multivariate analysis, independent predictors of SSI included age (Relative Risk (RR) 1.01), female gender (RR 1.86), BMI (RR 1.07), smoking (RR 1.61), diabetes mellitus (RR 1.58), hospital or ambulatory surgery center procedures (RR 1.39), trunk or extremity procedures (RR 2.42), and combined procedures (RR 1.88).
Conclusions: SSIs following cosmetic surgical procedures are associated with numerous independent predictors, which should be taken into consideration when counseling patients undergoing aesthetic surgery.