Overview of patients’ baseline characteristics and procedural outcomes
| Baseline characteristics | All patients (n=79) | mRS ≤2 at 90 days (n=12) | mRS ≥2 at 90 days (n=62) | P value |
| Median (IQR) age, years | 92 (90–93) | 92 (90–93) | 91.5 (90–93) | 0.905 |
| Women, % (n) | 79.7 (63/79) | 83.3 (10/12) | 77.4 (48/62) | 0.492 |
| Cardiovascular risk factors, % (n) | ||||
| Hypertension | 83.5 (66/79) | 75 (9/12) | 87.1 (54/62) | 0.249 |
| Atrial fibrillation | 63.3 (50/79) | 58.3 (7/12) | 64.5 (40/62) | 0.460 |
| Diabetes | 24.1 (19/79) | 8.3 (1/12) | 27.4 (17/62) | 0.148 |
| Hyperlipidemia | 15.2 (12/79) | 25 (3/12) | 11.3 (7/62) | 0.201 |
| Nicotine | 17.7 (14/79) | 16.7 (2/12) | 19.4 (12/62) | 0.595 |
| Mean (SD) creatinine* | 1.19 (0.63) | 1.5 (1.04) | 1.1 (0.43) | 0.367 |
| CT scan, % (n) | 93.7 (74/79) | 100 (12/12) | 93.6 (58/62) | 0.485 |
| Median (IQR) ASPECTS | 9 (8–10) | 8 (8–10) | 9 (8–10) | 0.664 |
| Median (IQR) NIHSS* | 17 (13–21) | 16 (12–21.5) | 17 (13–21) | 0.655 |
| Occluded vessels, % (n) | ||||
| tACI | 21.5 (17/79) | – | 24.2 (15/62) | |
| M1 | 69.6 (55/79) | 83.3 (10/12) | 69.4 (43/62) | |
| M2 | 7.6 (6/79) | 16.7 (2/12) | 4.8 (3/62) | |
| M3 | 1.3 (1/79) | – | 1.6 (1/62) | |
| Intravenous thrombolysis, % (n) | 59.5 (47/79) | 41. 7 (5/12) | 61.3 (38/62) | 0.173 |
| Conscious sedation, % (n) | 55.7 (44/79) | 41.7 (5/12) | 56.5 (35/62) | 0.266 |
| Use of stent retriever, % (n) | 74.7 (59/79) | 66.7 (8/12) | 74.2 (46/62) | 0.414 |
| Unsuccessful recanalization attempts, % (n) | 21.5 (17/79) | 16.7 (2/12) | 22.6 (14/62) | 0.492 |
| Median (IQR) number of passes | 1 (1–2) | 1 (1–2) | 1 (1–2) | 0.520 |
| Median (IQR) groin to recanalization time, min | 39 (25–57) | 35 (23–45) | 39 (25–72) | 0.356 |
*On admission.
ASPECTS, Alberts Stroke Program Early CT Score; NIHSS, National Institutes of Health Stroke Scale; tACI, terminal carotid artery.