577 Infra-Inguinal Bypass Graft Surveillance Is an Opportunity to Optimise Statin and Antiplatelet Therapy to Reduce 12-Month Major Amputation and Mortality Rates

Abstract Aim Infra-inguinal bypass graft failure within the first two postoperative years can result from stenotic lesions conduit and near anastomosis. This study assesses surveillance uptake, patency, amputation, death rates among infra-inguinal surgery patients at 1, 6 12-months postoperatively. Method Patients undergoing a single vascular centre between 1st January 2018 31st December 2019 were identified prospectively collected database. Primary outcomes postoperatively included: duplex-ultrasound (DUS) major amputations, rates. Statistical analysis with SPSS® was performed using chi-squared tests paired sample t-tests. Results Of 91 included, 79.1% men median(IQR) age 71(62–76). At 12 months, DUS uptake 74.2%, 77.5% 73.3% respectively, primary-assisted patency 88.2%, 78.8% 65.3% respectively secondary 97.6%, 96.3% respectively. Major amputation months 5.4%, 8.6%, 8.6% Death 3.2%, 5.4% 10.8% on statin therapy post-operatively had lower 12-month mortality than those not (7.7% vs 30.0%, p=.028). rate prescribed antiplatelet (6.3% 40%, p=.008). Conclusions is vital opportunity to adequately optimise post-revascularisation reduce