Procedural, safety and clinical outcomes between groups
| Characteristics | Cat 5 (n=76) | Cat 6 (n=78) | Cat 7 (n=84) | P value | |
| Cat 5 versus Cat 7 | Cat 6 versus Cat 7 | ||||
| Procedural outcomes | |||||
| First-pass effect | 24 (31.6) | 26 (33.3) | 45 (53.6) | 0.005 | 0.009 |
| Final eTICI 2c/3 | 41 (53.9) | 39 (50) | 59 (70.2) | 0.034 | 0.008 |
| Final eTICI 2b/2c/3 | 58 (76.3) | 73 (93.4) | 79 (94) | 0.001 | 0.904 |
| Number of MT attempts | 2 (1–4) | 2 (1–3) | 1 (1–2.3) | 0.009 | 0.014 |
| Need of rescue therapy | 25 (32.9) | 25 (32.1) | 13 (15.5) | 0.010 | 0.013 |
| Time groin–reperfusion | 38.5 (25.8–64) | 36.5 (20–67) | 30.5 (21–48.8) | 0.044 | 0.154 |
| Safety outcomes | |||||
| SAH | 6 (7.9) | 3 (3.8) | 1 (1.2) | 0.038 | 0.276 |
| sICH | 2 (2.6) | 4 (5.1) | 1 (1.2) | 0.502 | 0.148 |
| ENT | 4 (5.3) | 4 (5.1) | 1 (1.2) | 0.139 | 0.148 |
| Iatrogenic dissection | 1 (1.3) | 2 (2.6) | 2 (2.4) | 0.620 | 0.940 |
| Overall complications | 13 (17.1) | 13 (16.7) | 5 (5.9) | 0.026 | 0.030 |
| Clinical outcomes | |||||
| Mortality at 90 days | 18 (23.7) | 14 (17.9) | 15 (17.9) | 0.363 | 0.988 |
| mRS score of 0–2 at 90 days | 35 (46.1) | 39 (50) | 46 (54.8) | 0.271 | 0.544 |
Values are presented as number (%) or median (IQR).
P-values numbers marked in bold indicate statistically significant differences (<0.05).
Cat, Catalyst; ENT, emboli to new territory; eTICI, expanded thrombolysis in cerebral ischaemia; mRS, Modified Rankin Scale; MT, mechanical thrombectomy; SAH, subarachnoid haemorrhage; sICH, symptomatic intracranial haemorrhage.