Episode 337: 336. 24 Hours After a Stroke for EVT- 2 yr Follow-Up

Huijberts I et al. Collateral-based selection for endovascular treatment of acute ischaemic stroke in the late window (MR CLEAN-LATE): 2-year follow-up of a phase 3, multicentre, open-label, randomised controlled trial in the Netherlands. Lancet Neurol 2024 Sep; 23:893. (https://doi.org/10.1016/S1474-4422(24)00228-X)

The modified Rankin Scale (mRS) score at 2 years was the primary outcome. The median mRS at 2 years was 4 in the EVT group and 6 in the control group. For functional independence (mRS, 0–2), the rates were 35% in the EVT patients and 27% in the control group. Mortality at 2 years did not differ between the treatment groups.

However, about 12 patients need to be treated to provide one additional patient with functional independence, a higher number needed to treat than observed in studies of EVT provided in the early time window (e.g., N Engl J Med 2015; 372:2285)

Still 24 hours AFTER a stroke!! amazing