Study/year of publication | Data source | Study design | No of countries | Total no of patients | Site of occlusion | Collateral assessment | Premorbid mRS score | No of patients no-CTP/CTP | Median age (years) | Male (%) | Baseline NIHSS (median) | Baseline ASPECTS (median) | |
Dekker, 202114 | MR CLEAN Registry | Post hoc analysis | 1 | 106 | ICA\M1\ M2\M3\ A1\A2 | Yes | 0–2 | 85 | 21 | No-CTP: 67.4 CTP: 65.8 | No-CTP: 43.5 CTP: 47.6 | No-CTP: 16 CTP: 13 | No-CTP: 9 CTP: 7 |
Almekhlafi, 20229 | SOLSTICE Consortium | Pooled multicenter analysis | 11 | 608 | ICA\M1\ M2 | Yes | NA | 229 | 379 | No-CTP: 70 CTP: 70 | No-CTP: 46.7 CTP: 51.2 | No-CTP: 15 CTP: 16 | No-CTP: 8 CTP: 8 |
Herzberg, 202115 | German Stroke Registry | Post hoc analysis | 1 | 208 | ICA\M1\ M2 | No | 0–2 | 79 | 129 | No-CTP: 75.8 CTP: 72.3 | No-CTP: 49.4 CTP: 67.4 | No-CTP: 16 CTP: 16 | No-CTP: 8 CTP: 8 |
Dhillon, 202216 | National Stroke Registry of UK | Post hoc analysis | 1 | 1046 | NA | No | 0–1 | 668 | 378 | NA | No-CTP: 51.6 CTP: 55.6 | No-CTP: 16 CTP: 16 | NA |
Nogueira, 20217 | Trevo Retriever Registry | Retrospective study | 12 | 247 | ICA\M1\ M2 | No | 0–2 | 67 | 180 | No-CTP: 65.8 CTP: 66.7 | No-CTP: 58.2 CTP: 41.1 | No-CTP: 16 CTP: 15 | No-CTP: 8 CTP: 8 |
Nguyen, 202117 | CLEAR study | Retrospective study | 5 | 1204 | ICA\M1\ M2 | No | 0–2 | 534 | 752 | No-CTP: 71 CTP: 69 | No-CTP: 48.9 CTP: 46 | No-CTP: 17 CTP: 16 | No-CTP: 8 CTP: 8 |
mRS, modified Rankin Scale; no-CTP, no CT perfusion; CTP, CT perfusion; NIHSS, National Institutes of Health Stroke Scale; ASPECTS, Alberta Stroke Program Early CT Score; ICA, internal carotid artery; M1, M1 segment of middle cerebral artery; M2, M2 segment of middle cerebral artery; M3, M3 segment of middle cerebral artery; A1, A1 segment of the anterior cerebral artery; A2, A2 segment of the anterior cerebral artery; NA, not available.