Good recanalization is associated with long term favorable outcomes in acute stroke patients with large vessel occlusion treated with endovascular therapy

The long-term outcome in acute stroke patients with large vessel occlusion (LVO) treated with endovascular therapy (EVT) are unclear. We investigated functional outcomes one year after EVT in acute stroke patients with LVO. We retrospectively enrolled 149 stroke patients with LVO who underwent EVT from our prospective stroke registry. We assessed modified Rankin Scale (mRS) scores at one year from onset. The degree of recanalization was evaluated using modified thrombolysis in cerebral infarction (mTICI) grades. Good recanalization and a favorable outcome were defined as an mTICI grade ≥ 2b and mRS score ≤ 2, respectively. Favorable outcomes were observed in 76 (51.0%) patients. The favorable outcome group was younger (median age: 72 [interquartile range, 63–79] years vs. 79 [70–84] years, P