Abstract TP42: Equivalent Favorable Outcomes Possible After Thrombectomy for Posterior Circulation Large Vessel Occlusion Compared to Anterior Circulation: The MUSC Experience

Introduction: In acute ischemic stroke (AIS), posterior circulation large vessel occlusions (LVO) have been associated with poorer outcomes compared to anterior circulation LVO. Using a strategy for determining candidacy relying on CT perfusion rather than time parameters, the outcomes of anterior vs. posterior circulation thrombectomy for LVO were compared at a high volume center employing a direct aspiration first pass technique (ADAPT). Methods: We retrospectively studied a database of AIS cases that underwent ADAPT thrombectomy for large vessel occlusions. Cases were grouped by anatomical location of thrombectomy (posterior vs. anterior circulation), and analysis was performed on both entire sample size and on matched subsets within each group. Results: A total of 436 AIS patients (50.2% women, mean age 67.3 years) underwent ADAPT thrombectomy for LVO during the study period of which 13% of had posterior circulation thrombectomy. Patients with posterior circulation thrombectomy did not show a signific...