Secondary transfer for thrombectomy: which factors modify the outcome of patients ? Results of a prospective observational study in a network of Belgian hospitals.E. Levecque1, J. Simon2, O. Cornet3, D. Brisbois3, P. Reginster4, C. Ciobanu1, S. Gillet5, K. Windhausen5, P. Heinen6, S. Bolyn6, L. Dieudonnu00e97, P. Desfontaines1.1Centre Hospitalier Chru00e9tien, Neurology- Comprehensive Stroke Center, LIEGE, Belgium.2University of Liu00e8ge, Psychology & Neuroscience of Cognition u2013 PsyNCogn, Liu00e8ge, Belgium.3Centre Hospitalier Chru00e9tien, Interventional Neuroradiology, LIEGE, Belgium.4Centre Hospitalier Chru00e9tien, Neuroradiology, LIEGE, Belgium.5Centre Hospitalier de Huy, Neurology, Huy, Belgium.6Klinik St-Josef, Neurology, St Vith, Belgium.7Centre Hospitalier du Bois de l'Abbaye et de Hesbaye, Neurology, Seraing, Belgium.Background and AimsThrombectomy is effective in the management of acute stroke. It is not kown if patients benefit more from early thrombolysis at the closest of the nonendovascular capable Primary Stroke Centers (PSC) before transportation to the Comprehensive Stroke Centers (CSC) or if it is better to bypass the PSC.MethodWe reviewed 148 consecutive acute stroke patients treated by thrombectomy . The network is composed of 9 PSC located at a distance from 2.2 to 83 km from the CSC. We considered 10 predictive factors: age, diabetes, hypertension, NIHSS on admission, transfer, delay between stroke onset to emergency admission, iv thrombolysis before thrombectomy, delay between symptoms and device deployment, groin insertion to recanalization time and number of passes to recanalization. ResultsWe observed a reduction of 32 minutes between stroke onset and recanalization for patients who bypass the PSC (CSC=285,72 min, PSC = 317,23 min; p=0.08). The outcomes at discharge or during the follow-up did not significantly differ between groups (p=0.31 for mRS and p=0.22 for NIHSS). Multiple linear regression and logistic regression analysis revealed that iv thrombolysis before ...