REperfusion Therapy for Acute Ischemic STrOke Due to Large aRtEry Occlusion

The aim of the study was to establish a clinical and advanced imaging database of acute ischemic stroke patients treated with mechanical thrombectomy due to large vessel occlusion of anterior circulation within 24 hours from stroke onset in China, and to investigate the predictors and potential mechanisms of futile recanalization after mechanical thrombectomy.

The time-window of mechanical thrombectomy for ischemic stroke has extended from 4.5 hours to 24 hours based on the results of the DAWN and DEFUSE 3 trials. However, evidence on the effectiveness and safety of mechanical thrombectomy within 24 hours in the real-world is insufficient. This is a multi-center, prospective, registry cohort study that acute ischemic stroke patients treated with mechanical thrombectomy due to large vessel occlusion of anterior circulation within 24 hours from stroke onset in China. A retrospective dataset was also build in these stroke centers for analysis. A total of 1600 patients with advanced imaging data were anticipated to be enrolled.