Table 1.
Demographic and clinical characteristics of all patients
| Characteristic | NBO (n = 88) | Control (n = 87) |
|---|---|---|
| Age, mean ± SD, years | 63.8 ± 11.5 | 65.9 ± 10.5 |
| Sex ratio, no. (%) | 56 (63.6) | 51 (58.6) |
| NIHSS score, median (IQR) | 17 (14–18) | 16 (14–19) |
| ASPECTS value, median (IQR) | 9 (8–9) | 8 (8–9) |
| Risk factors, no. (%) | ||
| Hypertension | 57 (64.8) | 62 (71.3) |
| Diabetes mellitus | 26 (29.5) | 20 (23.0) |
| Atrial fibrillation | 34 (38.6) | 29 (33.3) |
| Smoking | 26 (29.5) | 23 (26.4) |
| Occlusion site, no. (%) | ||
| MCA | 50 (56.8) | 58 (66.7) |
| Intracranial ICA | 19 (21.6) | 15 (17.2) |
| P-ICA | 19 (21.6) | 14 (16.1) |
| rt-PA, no. (%) | 37 (42.0) | 41 (47.1) |
| Stent, no. (%) | 25 (28.4) | 20 (23.0) |
| Time from treatment to recanalization, median (IQR), min | 57 (40–74) | 60 (44–78) |
| Time from onset to recanalization, median (IQR), min | 231 (181–286) | 240 (200–305) |
| The number of passages of retriever stent, median (IQR) | 1 (1–1) | 1 (1–2) |
| TICI score, no. (%) | ||
| 1 | 3 (3.4) | 4 (4.6) |
| 2a | 9 (10.2) | 10 (11.5) |
| 2b | 20 (22.7) | 22 (25.3) |
| 3 | 56 (63.6) | 51 (58.6) |
There were no significant differences between the 2 groups
NIHSS = the National Institute of Health Scale Score; ASPECT = Alberta Stroke Program Early Computed Tomography Score; mRS = modified Rankin score; MCA = middle cerebral artery segment; ICA = internal carotid artery; P-ICA = proximal segment of internal carotid artery occlusion combined with intracranial large artery occlusion; IV rt-PA = intravenous recombinant tissue plasminogen activator; TICI = thrombolysis in cerebral infarction; IQR = interquartile range