RT Journal Article SR Electronic T1 Mechanical thrombectomy for basilar artery occlusion: efficacy, outcomes, and futile recanalization in comparison with the anterior circulation JF Journal of NeuroInterventional Surgery JO J NeuroIntervent Surg FD BMJ Publishing Group Ltd. SP 1174 OP 1180 DO 10.1136/neurintsurg-2018-014516 VO 11 IS 12 A1 Meinel, Thomas Raphael A1 Kaesmacher, Johannes A1 Chaloulos-Iakovidis, Panagiotis A1 Panos, Leonidas A1 Mordasini, Pasquale A1 Mosimann, Pascal J A1 Michel, Patrik A1 Hajdu, Steven A1 Ribo, Marc A1 Requena, Manuel A1 Maegerlein, Christian A1 Friedrich, Benjamin A1 Costalat, Vincent A1 Benali, Amel A1 Pierot, Laurent A1 Gawlitza, Matthias A1 Schaafsma, Joanna A1 Pereira, Vitor M A1 Gralla, Jan A1 Fischer, Urs YR 2019 UL http://jnis.bmj.com/content/11/12/1174.abstract AB Background Performing mechanical thrombectomy (MT) in patients with basilar artery occlusion (BAO) is currently not evidence-based.Objective To compare patients’ outcome, relative merits of achieving recanalization, and predictors of futile recanalization (FR) between BAO and anterior circulation large vessel occlusion (ACLVO) MT.Methods In the multicenter BEYOND-SWIFT registry (NCT03496064), univariate and multivariate (displayed as adjusted Odds Ratios, aOR and 95% confidence intervals, 95%-CI) outcome comparisons between BAO (N=165) and ACLVO (N=1574) were performed. The primary outcome was favorable outcome at 90 days (modified Rankin Scale, mRS 0-2). Secondary outcome included mortality, symptomatic intracranial hemorrhage (sICH) and FR. The relative merits of achieving successful recanalization between ACLVO and BAO were evaluated with interaction terms.Results MT in BAO was more often technically effective and equally safe in regards to mortality and sICH when compared to ACLVO. When adjusting for baseline differences, there was no significant difference between BAO vs ACLVO regarding rates of favorable outcome (aOR 0.986, 95%-CI 0.553 – 1.758). However, BAO were associated with increased rates of FR (aOR 2.146, 95%-CI 1.267 – 3.633). Predictors for FR were age, stroke severity, maneuver count and intracranial stenting. No significant heterogeneity on the relative merits of achieving successful recanalization on several outcome parameters were observed when comparing BAO and ACLVO.Conclusions In selected patients, similar outcomes can be achieved in BAO and ACLVO patients treated with MT. Randomized controlled trials comparing patient selection and interventional strategies seem warranted to avoid FR.Trial registration number NCT03496064