1430 Mid-Term Outcomes After Endovascular Repair of Popliteal Artery Aneurysms Demonstrate Satisfactory Patency Rates and Safety of Stent-Grafts

Abstract Aim Popliteal artery aneurysms (PAAs) are increasingly treated via an endovascular approach. We present mid-term outcomes of popliteal aneurysm repair (PEVAR) from a single centre. Method A retrospective analysis prospective database consecutive patients who underwent either elective or emergency PEVAR in regional vascular centre January 2010 to August 2020. The placement heparin-bonded stent-graft (Viabahn Endoprosthesis, WL Gore and Associates, Flagstaff, USA) for PAA >20mm complications: thromboembolism, rupture vein thrombosis. Patency related complications were assessed. Results total 64 PAAs (mean size 36.8±13.4mm) 56 age 75±10.7 years, 54 (96%) male). Median follow-up was 29.5 months (IQR 36.75). 30-day mortality 0%. Technical success rate insertion 100%. 1-year 5-year primary patency 83% 67% respectively; primary-assisted at these time points 86% 72%, the corresponding secondary 89% 75%. 61 out limbs had >1 vessel runoff. most frequently occurring complication occlusion which affected 11 (17%) limbs. Stent-graft fracture occurred 1 patient, resulting endoleak. Conclusions Viabahn Endoprosthesis can be used successfully treatment with acceptable short- rates. One five this cohort required reintervention, first year postoperatively. only one patient demonstrating that is safe option management intermediate term.