Baseline demographics and clinical characteristics by procedure time among patients with endovascular treatment with partial or complete recanalization
| Characteristics | Procedure time ≥60 min | Procedure time <60 min | P value* |
| N | 23% (67/288) | 77% (221/288) | |
| Female, % (n/N) | 52% (35/67) | 59% (130/221) | 0.233 |
| Age, mean±SD (N) | 66±14 (67) | 67±12 (221) | 0.646 |
| Onset to groin puncture, mean±SD (N) | 264±97 (67) | 249±89 (219) | 0.247 |
| Groin puncture to recanalization, mean±SD (N) | 87±32 (67) | 35±13 (221) | <0.001 |
| Onset to recanalization, mean±SD (N) | 351±100 (67) | 284±89 (219) | <0.001 |
| Baseline NIHSS score, % (n/N) | 16.8±4.6 (67) | 17.0±4.6 (218) | 0.680 |
| Site of occlusion, % (n/N) | 0.815 | ||
| ICA | 20% (13/66) | 18% (40/220) | |
| M1 | 67% (44/66) | 70% (153/220) | |
| M2 | 12% (8/66) | 10% (23/220) | |
| M3 | 2% (1/66) | 0% (1/220) | |
| Other | 0% (0/66) | 1% (2/220) | |
| Posterior circulation | 0% (0/66) | 0% (1/220) | |
| Received intravenous thrombolysis (IV tPA), % (n/N) | 61% (37/61) | 75% (155/208) | 0.052 |
| Hypertension, % (n/N) | 64% (43/67) | 63% (139/221) | 0.886 |
| Atrial fibrillation, % (n/N) | 34% (23/67) | 40% (89/221) | 0.395 |
| Hyperlipidemia, % (n/N) | 34% (23/67) | 30% (67/221) | 0.550 |
| Diabetes mellitus, % (n/N) | 24% (16/67) | 16% (35/221) | 0.145 |
| Myocardial disease, % (n/N) | 19% (13/67) | 16% (35/221) | 0.574 |
| Collaterals, mean±SD (N) | 1.9±1.0 (51) | 2.2±0.9 (166) | 0.070 |
| Baseline ASPECTS, mean±SD (N) | 8.1±1.9 (66) | 8.4±1.6 (220) | 0.253 |
| Glucose, mean±SD (N) | 136.4±74.3 (62) | 127.6±49.2 (216) | 0.276 |
| General anesthesia, % (n/N) | 66% (44/67) | 57% (126/221) | 0.257 |
| Number of device passes, % (n/N) | <0.001 | ||
| 1 | 23% (15/65) | 70% (139/198) | |
| 2 | 29% (19/65) | 22% (44/198) | |
| 3+ | 48% (31/65) | 8% (15/198) | |
| Final TICI grade, % (n/N) | <0.001 | ||
| 2b | 52% (35/67) | 26% (58/221) | |
| 3 | 48% (32/67) | 74% (163/221) | |
| Outcomes | |||
| 90-Day NIHSS score, mean±SD (N) | 3.3±3.9 (51) | 2.7±3.8 (179) | 0.370 |
| ICH symptomatic (%) | 6% (4/67) | 1% (3/221) | 0.053 |
| ICH asymptomatic (%) | 7% (4/54) | 13% (21/165) | 0.336 |
*P value calculated from paired t-test for continuous measures and Fisher’s exact test for discrete measures.
ASPECTS, Alberta Stroke Program Early CT Score; ICA, internal carotid artery; ICH, intracranial hemorrhage; NIHSS, National Institutes of Health Stroke Scale; TIVI, Thrombolysis in Cerebral Infarction; tPA, tissue plasminogen activator.