REperfusion Therapy for Acute Ischemic STrOke Due to Large aRtEry Occlusion

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.