Table 2.
Factors associated with a successful recanalization.
| Univariable analysis | Multivariable analysis | |||||
|---|---|---|---|---|---|---|
| With successful recanalization (n = 136) | Without successful recanalization (n = 29) | P | OR | (95% CI) | P | |
| Age, years | 69.9 ± 10.7 | 72.0 ± 13.3 | 0.357 | 0.99 | (0.95–1.03) | 0.577 |
| Sex, men | 69 (50.7) | 13 (44.8) | 0.563 | 1.27 | (0.54–2.97) | 0.585 |
| Hypertension | 95 (69.9) | 23 (79.3) | 0.306 | |||
| Diabetes | 43 (31.6) | 9 (31.0) | 0.951 | |||
| Smoking | 21 (15.4) | 2 (6.9) | 0.375 | |||
| Hypercholesterolemia | 25 (18.4) | 5 (17.2) | 0.885 | |||
| Initial NIHSS score | 16.0 [13.0–9.0] | 18.0 [15.0–21.0] | 0.082 | 0.97 | (0.90–1.05) | 0.486 |
| Atrial fibrillation | 85 (62.5) | 19 (65.5) | 0.760 | |||
| Occlusion sites | 0.274 | |||||
| Internal carotid artery | 35 (25.7) | 11 (37.9) | ||||
| Middle cerebral artery | 82 (60.3) | 13 (44.8) | ||||
| Posterior circulation | 19 (14.0) | 5 (17.3) | ||||
| Use of intravenous tPA | 55 (40.4) | 9 (31.0) | 0.345 | |||
| Use of BGC | 75 (55.1) | 9 (31.0) | 0.018 | 2.59 | (1.08–6.26) | 0.034 |
| Size of stent retriever | 0.964 | |||||
| 4/15 | 4 (2.9) | 1 (3.4) | ||||
| 4/20 | 126 (92.7) | 27 (93.2) | ||||
| 6/30 | 6 (4.4) | 1 (3.4) | ||||
| Time from onset to puncture, min | 202.5 [150.0–323.2] | 229.0 [160.0–411.0] | 0.292 | |||
| Thrombus density, corrected HU | 52.8 [48.6–57.7] | 54.7 [52.1–60.6] | 0.175 | |||
| Thrombus volume, mm3 | 107.5 [50.8–183.8] | 173.7 [73.2–289.2] | 0.025 | 0.96a | (0.93–0.98) | 0.040 |
| Favorable outcome | 72 (52.9) | 4 (13.8) | <0.001 | |||
Values are mean ± standard deviation, number (%), or median [interquartile range]. aOdds ratio per 10 mm3 of thrombus volume. OR, odds ratio; CI, confidence interval; NIHSS, National Institutes of Health Stroke Scale; tPA, tissue plasminogen activator; BGC, balloon-guiding catheter; HU, Hounsfield unit.