Table 3 Subgroup Analysis of Clinical Outcomes in ABAO Patients
Outcome variables | Subgroups | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Tandem lesion | ICAS | ASITN/SIR collateral system | Prior use of intravenous tPA | |||||||||
Yes (n = 25) | No (n = 162) | P value | Yes (n = 117) | No (n = 70) | P value | Grade 0–2 (n = 165) | Grade 3–4 (n = 22) | P value | Yes (n = 36) | No (n = 151) | P value | |
Successful recanalization (mTICI 2b-3) | 15 (60.0) | 143 (88.3) | <  0.01 | 100 (85.5) | 58 (82.9) | 0.63 | 137 (83.0) | 21 (95.5) | 0.21 | 30 (83.3) | 128 (84.8) | 0.80 |
Complete recanalization (mTICI 3) | 13 (52.0) | 113 (69.8) | 0.11 | 77 (65.8) | 49 (70.0) | 0.55 | 108 (65.5) | 18 (81.8) | 0.15 | 26 (72.2) | 100 (66.2) | 0.49 |
Hemorrhagic transformation within 24 h | 4 (16.0) | 25 (15.4) | >  0.99 | 16 (13.7) | 13 (18.6) | 0.37 | 26 (15.8) | 3 (13.6) | >  0.99 | 7 (19.4) | 22 (14.6) | 0.45 |
SICH (ECASS III definition) within 24 h | 2 (8.0) | 6 (3.7) | 0.29 | 4 (3.4) | 4 (5.7) | 0.48 | 7 (4.2) | 1 (4.6) | >  0.99 | 1 (2.8) | 7 (4.6) | >  0.99 |
Functional independence (mRS 0–2) at 90 days | 7 (28.0) | 61 (37.7) | 0.38 | 43 (36.8) | 25 (35.7) | 0.89 | 55 (33.3) | 13 (59.1) | 0.03 | 15 (41.7) | 53 (35.1) | 0.46 |
Favorable outcome (mRS 0–3) at 90 days | 8 (32.0) | 84 (51.9) | 0.07 | 62 (53.0) | 30 (42.9) | 0.18 | 75 (45.5) | 17 (77.3) | 0.01 | 19 (52.8) | 73 (48.3) | 0.63 |
Mortality at 90 days | 11 (44.0) | 27 (16.7) | 0.01 | 20 (17.1) | 18 (25.7) | 0.16 | 36 (21.8) | 2 (9.1) | 0.26 | 6 (16.7) | 32 (21.2) | 0.65 |