Safety and efficacy of endovascular treatment for acute ischemic stroke of large-vessel occlusion beyond the time window based on imaging evaluation.

The safety and effectiveness of EVT treatment for selected AIS-LVO patients with symptom onset of 24-72 h are not inferior to those treated within 6-24 h of onset, especially in a short term based on the pre-treatment advanced neuroimaging computed tomography perfusion even though further investigations are necessary to prove this finding.