1142 National Audit of NICE Guidance for Endovascular Repair of Popliteal Aneurysms: The Kings Experience

Aim To evaluate care for patients undergoing covered stenting for popliteal aneurysms against NICE guidance, and to assess peri-procedural and post-procedural outcomes of patients. Method Retrospective collection of data in patients who had undergone endovascular repair of popliteal aneurysms from 30/5/2010 to 30/5/2023. 11 patients met inclusion criteria. Data collection was based on the NICE guidance clinical audit tool for endovascular repair of popliteal aneurysms. This included presenting symptoms, demographics, pre-procedure imaging findings, procedure details, duration of patency of the stent, peri-procedural complications, post procedure medical management and whether limb salvage was achieved. Results All 11 patients had vascular MDT discussion prior to procedure. Mean age was 71, 9 patients were male and 2 females. 5 stents remained patent to time of data collection or at the time of their death from other causes. There were no significant immediate complications. Of 6 failed stents, only one patient required amputation. Three patients had stents which remained patent for over a year with mean patency of 37 months, and 3 remained patent for less than a year. Stents that failed <1 year had reduced run-off vessels (mean 2). The smallest stent diameter (6mm) failed within 7 months. All patients had appropriate antiplatelet therapy. Conclusions Local experience of 11 endovascular stent for popliteal aneurysms. 6 failed and 3 failed within one year of insertion, with 1 patient requiring amputation. MDT input and full patient consent are mandatory prior to endovascular management of popliteal aneurysms. Technically, reduced run-off and narrower stents may be associated with poorer outcomes.