Baseline characteristics of patients with BAO with regard to recanalization status
| Characteristics | Overall (n=51) | No recanalization TIMI 0–1 (n=10) | Successful recanalization TIMI 2–3 (n=41) | p Value |
|---|---|---|---|---|
| Age, years, median (IQR) | 72 (66–78) | 71 (56–82) | 72 (67–78) | 0.85 |
| Men, n (%) | 36 (70.6) | 8 (80) | 28 (68.3) | 0.70 |
| Baseline NIHSS score, median (IQR) | 18 (14–23) | 17 (7–19) | 18 (15–24) | 0.12 |
| Site of occlusion | ||||
| Proximal BA, n (%) | 10 (19.6) | 2 (20) | 8 (19.5) | 1.00 |
| Mid BA, n (%) | 21 (41.2) | 4 (40) | 17 (41.5) | 1.00 |
| Top of BA only, n (%) | 20 (39.2) | 4 (40) | 16 (39) | 1.00 |
| Thrombus length, mm, median (IQR) | 7.5 (5–14.4) | 7.5 (7.3–13.5) | 8.2 (5–14.9) | 0.91 |
| Density, absolute HU | 51.6±6.2 | 48.4±6.7 | 52.3±5.8 | 0.07 |
| Density, relative HU | 1.34±0.15 | 1.29±0.14 | 1.35±0.15 | 0.29 |
| HDBA sign, n (%) | 42 (82.4) | 7 (70) | 35 (85.4) | 0.35 |
| Onset-to-treatment, min, median (IQR) | 222 (178–462) | 372 (186–1166) | 221 (154–356) | 0.13 |
| Strategy of EVT | ||||
| IA rtPA only, n (%) | 5 (9.8) | 3 (30) | 2 (4.8) | 0.05 |
| Mechanical only, n (%) | 30 (58.9) | 4 (40) | 26 (60.5) | 0.28 |
| Mechanical+IA rtPA, n (%) | 16 (31.4) | 3 (30) | 13 (34.2) | 1.00 |
| Etiology | ||||
| Cardioembolic, n (%) | 30 (58.8) | 8 (80) | 22 (53.6) | 0.17 |
| Large artery atherosclerotic, n (%) | 13 (25.5) | 1 (10) | 12 (29.3) | 0.42 |
| Other confirmed etiology, n (%) | 5 (9.8) | 1 (10) | 4 (9.8) | 1.00 |
| Unknown, n (%) | 3 (5.9) | 0 | 3 (7.3) | 1.00 |
BA, basilar artery; BAO, basilar artery occlusion; EVT, endovascular therapy; HDBA, hyperdense basilar artery; HU, Hounsfield units; NIHSS, National Institutes of Health Stroke Scale scores; rtPA, recombinant tissue plasminogen activator; TIMI, Thrombolysis in Myocardial Infarction.