Univariate analysis for predictors of parenchymal hematoma after endovascular thrombectomy
| Variable | PH (n=36)* | No PH (n=364) | P value |
| Age (years), median (IQR) | 71.5 (63–75.75) | 72.5 (64–79) | 0.237 |
| Male sex | 19 (52.8) | 186 (51.1) | 0.848 |
| Atrial fibrillation | 18 (50.0) | 197 (54.1) | 0.636 |
| Hypertension | 26 (72.2) | 209 (57.4) | 0.085 |
| Diabetes mellitus | 5 (13.9) | 76 (20.9) | 0.319 |
| Hyperlipidemia | 3 (8.3) | 97 (26.6) | 0.015 |
| Smoking | 9 (25.0) | 92 (25.3) | 0.971 |
| Coronary artery disease | 2 (5.6) | 37 (10.2) | 0.558 |
| Previous stroke | 7 (19.4) | 62 (17.0) | 0.715 |
| Congestive heart failure | 0 | 10 (2.7) | 0.610 |
| Intravenous thrombolysis | 24 (66.7) | 202 (55.5) | 0.197 |
| Time to procedure (min), median (IQR) | 235 (180–310) | 225 (181.25–317.5) | 0.742 |
| Procedure duration (min), median (IQR) | 30.5 (20–47) | 25 (20–35) | 0.019 |
| Time to reperfusion (min), median (IQR) | 270.5 (209.25–339.5) | 263.5 (201.25–354.5) | 0.922 |
| Underlying intracranial stenosis | 3 (8.3) | 52 (14.3) | 0.449 |
| NIHSS score on admission, median (IQR) | 13 (11–16) | 13 (10–16) | 0.366 |
| Systolic BP at admission (mm Hg), median (IQR) | 130 (120–140) | 130 (120–150) | 0.912 |
| Diastolic BP at admission (mm Hg), median (IQR) | 90 (80–100) | 80 (80–90) | 0.397 |
| Admission hyperglycemia | 17 (47.2) | 117 (32.1) | 0.067 |
| Antiplatelet medication | 4 (11.1) | 83 (22.8) | 0.137 |
| Anticoagulant medication | 6 (16.7) | 38 (10.4) | 0.255 |
| Stroke subtype | |||
| Cardioembolism | 18 (50.0) | 213 (58.5) | 0.324 |
| Large artery atherosclerosis | 9 (25.0) | 84 (23.1) | 0.794 |
| Undetermined etiology | 9 (25.0) | 67 (18.4) | 0.314 |
| Occlusion site | |||
| Middle cerebral artery | 24 (66.7) | 212 (58.2) | 0.327 |
| Internal carotid artery | 9 (25.0) | 96 (26.4) | 0.858 |
| Basilar artery | 3 (8.3) | 56 (15.4) | 0.330 |
| Intra-arterial urokinase | 1 (2.8) | 39 (10.7) | 0.237 |
| Secondary contact aspiration thrombectomy | 4 (11.1) | 77 (21.2) | 0.194 |
| Successful reperfusion | 27 (75.0) | 308 (84.6) | 0.136 |
*Values are n with % in parentheses unless otherwise indicated.
BP, blood pressure; IQR, interquartile range; NIHSS, National Institutes of Health Stroke Scale; PH, parenchymal hematoma.