Risks for Surgical Site Infection after Infra-inguinal Bypass.

Aims To define the burden of wound complications in patients with infra-inguinal bypass surgery. Methods A retrospective review of 50 consecutive patients from January 2012 to July 2017. Data collected included patient demographics, operative details, length of stay (LOS) and postoperative complications. Results The average age was 64 years (range 25-88 years) and 10 had a body mass index (BMI) ≥25 kg/m2. Pre-operative methicillin-resistant Staphylococcus aureus (MRSA) screening was performed in 17 patients (n=4 positive). Surgical antimicrobial prophylaxis (SAP) continued longer than 24 hours in 25. Surgical site infection (SSI) was the most common complication (n=10) and associated with female gender (p= 0.039), high BMI (p=0.017), shorter preoperative (p=0.039) and longer postoperative LOS (p=0.022). Three of 46 patients and four of 38 had graft occlusion at 30 days and one year respectively. Conclusion Pre-operative co-morbidity (e.g., BMI reduction), and MRSA screening optimization and SAP are areas identified for improvement.