P-001 Non-contrast CT alone versus combined CT plus CTA or MRA selection for thrombectomy in acute ischemic stroke: analysis of the angel-act registry

Background Medium-vessel occlusions (MeVOs) account for 25%-40% of all acute ischemic stroke (AIS) cases. With peri-procedural embolization occurring in up to 9% of all EVT cases, secondary MeVOs are of particular interest to neuroin-terventionalists. There is currently no reliable evidence regarding whether EVT is safe and effective for MeVO strokes. We sought to gain insight into the current management approaches regarding EVT in AIS caused by secondary MeVOs. Methods We conducted an international case-based survey (MeVO-Finding Rationales and Objectifying New Targets for IntervEntional Revascularization in Stroke; MeVO-FRON-TIERS) among stroke physicians to gain insight into the current management approaches regarding EVT in AIS caused by secondary MeVOs. Survey participants were presented three cases involving secondary MeVO, each consisting of three case-vignettes with differences in the neurological status of the described patient (improvement, no change, unable to assess due to general anaesthesia). Univariate and multivariate logistic regression analyses clustered by respondent identity were performed to assess factors influencing the decision to treat.