Abstract WP20: Reasons Patients Don’t Receive Endovascular Therapy and Their Outcomes

Objective: Many examine patient outcomes following endovascular therapy for acute ischemic stroke, but we wanted to better understand why patients presenting within the window for this therapy did not receive it and their outcomes. Methods: We retrospectively examined a cohort of 275 patients with a discharge diagnosis of ischemic stroke, NIHSS≥6 and last known normal (LKN) timeu003c6 hours prior to arrival. We determined why patients did not receive endovascular therapy and collected demographics, admission NIHSS, pre-admission modified Rankin scale (mRS), LKN time, decision time for no endovascular therapy, discharge NIHSS, disposition and mRS at follow-up. We used STATA 12.0 for statistical analysis and student’s t-test to compare mean decision time for individual groups of patients to other patients in the cohort. Results: Reasons patients did not receive intervention were patent major intracranial vessels (32%), no penumbra on CT or MRI (11.7%), large core infarct (16%), low NIHSS or significant improvem...