Table 1. Demographic and clinical characteristics, image findings of all patients (n = 55).
| Variables | Value |
|---|---|
| Male sex (%) | 33 (60) |
| Age (years) | 68.96 ± 13.54 |
| Hypertension (%) | 44 (80) |
| Diabetes (%) | 7 (12.73) |
| Dyslipidemia (%) | 27 (49.09) |
| Habitual smoker (%) | 7 (12.73) |
| Atrial fibrillation (%) | 30 (54.55) |
| NIHSS score at arrival | 12.71 ± 5.14 |
| Onset-to-CT-imaging time (minutes) | 102.71 ± 54.01 |
| Onset-to-MRI-imaging time (minutes) | 182.31 ± 58.49 |
| Onset-to-DSA-imaging time (minutes) | 244.07 ± 70.54 |
| Onset-to-reperfusion time (minutes) | 323.91 ± 81.68 |
| Location of symptomatic occlusion (%) | |
| Middle cerebral artery-M1 | 25 (45.45) |
| Middle cerebral artery-M2 | 7 (12.73) |
| Intracranial internal cerebral artery | 7 (12.73) |
| Extracranial internal cerebral artery | 10 (18.18) |
| Both middle cerebral artery and internal cerebral artery | 6 (10.91) |
| Collateral status at the Sylvian fissure (%) | |
| Insufficient | 52 (94.55) |
| Sufficient* | 3 (5.45) |
| Collateral status at the leptomeningeal convexity (%) | |
| Insufficient | 45 (81.82) |
| Sufficient* | 10 (18.18) |
| Recanalization treatment (%) | |
| Endovascular recanalization only | 20 (36.36) |
| Combined intravenous and endovascular recanalization | 35 (63.64) |
| Infarct volume on onset MRI (mL) | 43.98 ± 78.13 |
| HV | 5.09 ± 2.20 |
| Successful recanalization (modified TICI score of ≥ 2b) (%) | 46 (83.64) |
| mRS score of 0–2 at 3 months after stroke (%) | 18 (32.73) |
| Mortality rate at 3 months after stroke (%) | 4 (7.27) |
Data are mean ± SD, n (%), or median (interquartile range) values.
*A sufficient collateral circulation indicates the collaterals in the ischemic hemisphere ≥ 3 points. NIHSS, National Institutes of Health Stroke Scale, TICI, Thrombolysis in Cerebral Infarction, mRS, modified Rankin Scale. HV, hyperintense vessels.