• Fouzi Bala, Marc Ferrigno, Thomas Personnic, Laurent Estrade, Arnaud Karam, Hilde Henon, and Nicolas Bricout.
• Department of Interventional Neuroradiology, CHU Lille, Lille, France.
• World Neurosurg. 2021 Jul 1; 151: e387-e394.

ObjectiveWe aimed to evaluate the safety and efficacy of endovascular thrombectomy (EVT) using the EmboTrap Revascularization Device (EmboTrap) in patients with ischemic stroke treated >6-24 hours after stroke onset.MethodsWe performed a retrospective analysis of data from a prospective registry of consecutive patients with stroke with anterior circulation large vessel occlusion treated by stent-retriever thrombectomy with EmboTrap II in a single stroke center in France from 2016 to 2017. Patients were divided into late treatment window (>6-24 hours after stroke onset) or early treatment window (≤6 hours) groups. Baseline clinical and imaging characteristics, rates of successful recanalization (modified Thrombolysis in Cerebral Infarction score ≥2b), complications, 3 months good functional outcome (modified Rankin Scale score 0-2), and mortality were analyzed.ResultsOf the 225 patients (mean age, 71.5 ± 14.5 years; 55.6% [125/225] female) included in the study, 54 were treated in the late treatment window, with a mean time from last known well to treatment of 651 ± 223 minutes. Compared with the early treatment window group, there were no significant differences in baseline characteristics, successful recanalization (83.3% [45/54] vs. 81.3% [139/171]; P = 0.734), 3 months good functional outcome (37.0% [20/54] vs. 37.4% [64/171]; P = 0.959), or mortality (24.1% [13/54] vs. 27.5% [47/171]; P = 0.621).ConclusionsThis real-world study provides evidence that EVT using EmboTrap is safe and effective in the late treatment window in patients with large vessel occlusion.Copyright © 2021 Elsevier Inc. All rights reserved.

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