Table 2.
Angiographic and Clinical Outcomes Based on Collateral Grade.
| Outcome | Collateral Grade, no. (%) | Fisher p-value |
CA trend p-value |
||||
|---|---|---|---|---|---|---|---|
| 0 (n=19) |
1 (n=53) |
2 (n=108) |
3 (n=88) |
4 (n=8) |
|||
| Recanalization (AOL≥2) | 10 (53) | 34 (64) | 85 (79) | 77 (88) | 7 (88) | 0.0016 | <0.0001 |
| Reperfusion (mTICI≥2)† | 8 (44) | 27 (54) | 79 (75) | 75 (86) | 7 (88) | <0.0001 | <0.0001 |
| Symptomatic ICH within 30 hours of IV t-PA | 2 (11) | 3 (6) | 6 (6) | 6 (7) | 0 (0) | 0.8918 | 0.6346 |
| Clinical outcome mRS≤2 at 3 months | 4 (21) | 13 (25) | 37 (34) | 46 (52) | 4 (50) | 0.0039 | 0.0002 |
| Death from all causes within 3 months | 5 (26) | 14 (26) | 21 (19) | 11 (13) | 0 (0) | 0.1402 | 0.0118 |
†
11 subjects missing mTICI score due to clot location (basilar, vertebral, or PCA)