Outcome of the 33 patients according to degree of DRO
| DRO Grade | 0 | 1 | 2 | 3 | Total |
|---|---|---|---|---|---|
| No. of patients | 13 | 6 | 4 | 10 | 33 |
| No. of recanalized ICA (rate) | 19 (58%) | 14 (42%) | 33 | ||
| Initial NIHSS, median (range) | 15 (6–22) | 17 (12–27) | 11.5 (8–18) | 10.5 (6–21) | |
| 1-month NIHSS, median (range) | 14 (2–42*) | 29 (6–42) | 7 (1–14) | 5 (2–17) | |
| No. of deaths | 3 | 3 | 0 | 0 | 6 (18%) |
| mRS >3 at 1 year (mean mRS %) | 10 (77) | 6 (100) | 2 (50) | 4 (40) | 22 (67) |
| mRS ≤2 at 1 year (mean mRS %) | 3 (23) | 0 (0) | 2 (50) | 6 (60) | 11 (33) |
Note:—DRO indicates distal residual occlusion; ICA, internal carotid artery; NIHSS, National Institutes of Health Stroke Scale; mRS, modified Rankin Scale. DRO grades are defined in the text.
* NIHSS score of 42 means death.