MSIG (n=12) | CG1 (n=10) | P value | CG2 (n=25) | P value | |
Location of arterial occlusion | |||||
M1-MCA; n (%) | 5 (41.7) | 4 (40.0) | 1.000* | 18 (72.0) | 0.292* |
M2-MCA; n (%) | 5 (41.7) | 3 (30.0) | 1.000* | 6 (24.0) | 0.886* |
ICA +M1 MCA; n (%) | 2 (16.7) | 3 (30.0) | 1.000* | 1 (4.0) | 0.482* |
Right-side stroke; n (%) | 7 (58.3) | 7 (70.0) | 1.000* | 17 (68.0) | 1.000* |
Stroke etiology; n (%) | |||||
Cardioembolic; n (%) | 8 (66.7) | 7 (70.0) | 1.000* | 14 (56.0) | 1.000* |
ICAS; n (%) | 3 (25) | 0 (0.0) | 0.442* | 9 (36.0) | 1.000* |
ESUS; n (%) | 1 (8.3) | 3 (30.0) | 0.586* | 1 (4.0) | 1.000* |
Dissection; n (%) | 0.0 | 0 (0.0) | 1.000 | 1 (4.0) | 1.000* |
ASPECT score; median (IQR) | 9.5 (8–10) | 8.5 (8–10) | 1.000† | 9.0 (6–10) | 0.277† |
Time onset-to-admission; median (IQR); min | 93.0 (80–115) | 85.0 (37–203) | 1.000† | 70.0 (20–230) | 0.048† |
IVT; n (%) | 7 (58.3) | 10 (100.0) | 0.080* | 25 (100.0) | 0.004* |
Time onset-to-needle; median (IQR); min | 125.0 (101–165) | 126.0 (65–210) | 0.728† | 105.0 (75–270) | 0.056† |
Time onset-to-groin; median (IQR); min | 168.0 (135–270) | 140.0 (120–210) | 0.724† | 160.0 (110–290) | 0.761† |
Time onset-to-recanalization failure; median (IQR); min | 205.0 (125–360) | 193.5 (125–270) | 1.000† | 210.0 (165–360) | 1.000† |
TICI 0 at time of recanalization failure; n (%) | 11 (91.7) | 9 (90.0) | 1.000* | 17 (68.0) | 0.440* |
TICI 1 at time of recanalization failure; n (%) | 1 (8.3) | 1 (10.0) | 1.000* | 8 (32.0) | 0.440* |
*Fisher’s exact test;
†Mann-Whitney U-test;
ASPECT, Alberta Stroke Program Early CT; CG1, control group in center 1; CG2, control group in center 2; ESUS, embolic stroke of unknown source; ICA, internal carotid artery; ICAS, intracranial atherosclerosis; IVT, Intravenous thrombolysis; MCA, middle cerebral artery; MSIG, microsurgical inrtervention group; TICI, thrombolysis in cerebral infarction.