Why this study was conducted?

A few randomized clinical trials have shown that patients with large cerebral infarction had better functional outcomes with EVT than with medical care.

We hypothesize that there is a correlation between NIHSS score and prognosis of patients with large core infarction.

What was learned from this study?

Patients with a higher baseline NIHSS score are less likely to have a favorable outcome, especially in those with NIHSS scores greater than 20.

Age and sex indirectly affect favorable outcomes through their association with baseline NIHSS score.