Table 2 Comparison of imaging findings, intra‐arterial thrombolysis parameters, antithrombotic treatment and recanalisation rates in the bleeding and non‐bleeding groups.
| Characteristic | sICH | No sICH | Total | p Value |
|---|---|---|---|---|
| Dense artery sign, n = 270 | ||||
| Yes | 6 | 109 | 42.6% | 0.767* |
| No | 6 | 149 | 57.4% | |
| Early CT signs of ischaemia, n = 280 | ||||
| Yes | 11 | 111 | 43.6% | 0.003* |
| No | 2 | 156 | 56.4% | |
| Occlusion site, n = 293 | ||||
| Anterior circulation | 13 | 235 | 86.4% | 0.703* |
| Posterior circulation | 1 | 44 | 13.6% | |
| ICA and MCA, n = 243 | ||||
| Proximal (ICA, M1 or M2) | 13 | 193 | 84.8% | 0.227* |
| Distal (M3 or M4) | 0 | 37 | 15.2% | |
| Collaterals, n = 287 | ||||
| Good | 2 | 166 | 58.5% | 0.001* |
| Poor | 12 | 107 | 41.5% | |
| Time from stroke onset to IAT, min | 247.5 (105) | 255 (101) | 255 (100) | 0.851† |
| Urokinase dose, U | 1 000 000 (0) | 1 000 000 (250 000) | 1 000 000 (250 000) | 0.019† |
| PTA/stent, n = 293 | ||||
| Yes | 1 | 24 | 8.5% | 1.000* |
| No | 13 | 255 | 91.5% | |
| TIMI grades | n = 14 | n = 276 | 0.020† | |
| 0 | 1 | 47 | 16.5% | |
| 1 | 8 | 30 | 13.1% | |
| 2 | 5 | 150 | 53.4% | |
| 3 | 0 | 49 | 16.9% | |
| Aspirin after IAT, n = 293 | ||||
| Yes | 9 | 225 | 79.9% | 0.167* |
| No | 5 | 54 | 20.1% | |
| Heparin after IAT, n = 294 | ||||
| Yes | 1 | 51 | 17.7% | 0.477* |
| No | 13 | 229 | 82.3% |
CT, computed tomography; IAT, intra‐arterial thrombolysis; ICA, internal carotid artery; M1–M4, segments of the middle carotid artery; MCA, middle cerebral artery; PTA, percutaneous transluminal angioplasty; sICH, symptomatic intracranial haemorrhage; TIMI, thrombolysis in myocardial infarction.
Numbers in parentheses are interquartile ranges.
*Fisher's exact test.
†Mann—Whitney U test.