The aim of this study is to assess the efficacy and safety of endovascular treatment versus medical management in patients with acute basilar artery occlusion with extended time window of 24-72 hours from onset.
Age≥18 years
Acute basilar artery occlusion confirmed by CTA, MRA, or DSA
Pre-stroke mRS of 0-2
NIHSS score ≥ 10 before randomization
Any sign of intracranial hemorrhage (except microbleeds) on brain imaging prior to randomization
Complete cerebellar infarct with significant mass effect, or bilateral thalamic infarction as evidenced by baseline neuroimaging
CT or MRI evidence of intracranial tumor (except small meningioma and cerebral aneurysm < 3mm in diameter)
Known or highly suspected chronic occlusion of basilar artery