Summary of baseline and technical and clinical outcome data
| Outcome data | <80 Years | ≥80 Years | p Value |
|---|---|---|---|
| Functionally independent at home before the stroke (%) | 88 | 60 | <0.001 |
| Left hemispheric stroke (%) | 47 | 42 | 0.70 |
| NIHSS-pre, median (range) | 15 (2–25) | 15 (4–22) | 0.89 |
| ASPECTS score, median (range) | 8 (3–10) | 9 (3–10) | 0.1 |
| IV rtPA bridging (%) | 64 | 73 | 0.3 |
| Successful recanalization (TICI 2b/3) (%) | 82.4 | 80.0 | 0.81 |
| Time symptom onset—recanalization (TICI 2b/3 only) (min), mean±SD | 272±85 | 257±97 | 0.5 |
| Procedure duration (first DSA run—recanalization) (TICI 2b/3 only) (min), mean±SD | 66±38 | 58±52 | 0.46 |
| Symptomatic hemorrhage (%) | 2.4 | 0 | 0.46 |
| NIHSS-post, median (range) | 6 (0–22) | 8 (1–20) | 0.125 |
| Δ NIHSS ≥4 (%) | 68 | 56 | 0.23 |
| Δ NIHSS ≥8 (%) | 45 | 36 | 0.43 |
| Early in-hospital mortality (%) | 9.4 | 7.5 | 0.73 |
| Mid-term mRS (∼90 days), median (range) | 2 (0–6) | 4.5 (0–6) | <0.0001 |
| mRS 0–2 (%) | 55 | 12 | <0.0001 |
| Overall mortality (%) | 12 | 33 | <0.01 |
ASPECTS, Alberta Stroke Program Early CT score; mRS, modified Rankin Scale; NIHSS, National Institute of Health Stroke Scale; rtPA, recombinant tissue plasminogen activator; TICI, Thrombolysis in Cerebral Infarction.