Table 1.
Comparisons between the 2 groups (futile vs. nonfutile recanalization)
| Futile recanalization (n = 20) | Nonfutile recanalization (n = 15) | p value | |
|---|---|---|---|
| Age, years | 74 (65 – 78) | 58 (53 – 77) | 0.053* |
| Male/female | 8/12 | 10/5 | 0.176† |
| Past medical history | |||
| Ischemic stroke | 5 (25) | 2 (13) | 0.672† |
| Ischemic heart disease | 8 (40) | 2 (13) | 0.134† |
| Vascular risk factors | |||
| Hypertension | 16 (80) | 8 (53) | 0.144† |
| Diabetes mellitus | 7 (35) | 3 (20) | 0.458† |
| Dyslipidemia | 9 (45) | 6 (40) | 1.000† |
| Smoking | 3 (15) | 2 (13) | 1.000† |
| Atrial fibrillation | 5 (25) | 5 (33) | 0.712† |
| Initial NIHSS score | 17 (11 – 20) | 9 (7 – 17) | 0.042* |
| Time, min | |||
| Last normal to MRI | 264 (220 – 359) | 330 (248 – 442) | 0.243* |
| Last normal to endovascular therapy | 334 (292 – 462) | 395 (331 – 495) | 0.382* |
| Found to MRI | 224 (185 – 324) | 270 (248 – 373) | 0.194* |
| Found to endovascular therapy | 306 (240 – 454) | 364 (314 – 459) | 0.113* |
| IV rt-PA prior to endovascular therapy | 11 (55) | 8 (53) | 1.000† |
| Occlusion site | |||
| Internal carotid artery | 9 (45) | 6 (40) | 1.000† |
| Middle cerebral artery | 11 (55) | 9 (60) | |
| ASPECTS | |||
| CT | 9 (8 – 9) | 9 (8 – 10) | 0.527* |
| DWI | 8 (6 – 9) | 8 (6 – 8) | 0.943* |
| Ischemic lesion volume, ml | |||
| DWI | 21 (13 – 35) | 14 (11 – 23) | 0.230* |
| MTT | 189 (156 – 210) | 192 (107 – 252) | 0.976* |
| Large DWI-DWM lesion | 9 (45) | 1 (7) | 0.022† |
| TICI grade 3 recanalization | 7 (35) | 3 (20) | 0.458† |
| Parenchymal hematoma type 2 incidence | 3 (15) | 0 | 0.251† |
| Final ischemic lesion volume, ml | 37 (17 – 124) | 9 (3 – 27) | 0.003* |
Data are median values with IQR in parentheses or numbers with percentages in parentheses.
*
Mann-Whitney U test.
†
Fisher's exact test.