Multivariable logistic regression analysis for primary outcome (successful reperfusion (TICI 2b/3) after first pass retrieval) of first pass and non-first pass-reperfused patients with a TICI score of 2b/3 within the first retrieval attempt after mechanical thrombectomy.
| Predictors | First pass reperfusion | ||
| OR | 95% CI | P value | |
| COVES | 1.25 | 1.1 to 1.42 | 0.001 |
| Time from onset to reperfusion | 0.9994 | 0.998 to 1 | 0.204 |
| Penumbra volume Tmax >6 s | 0.998 | 0.996 to 1 | 0.071 |
| Observations n=548 | |||
N=57 patients had unknown times from symptom onset to reperfusion, while in n=12 patients penumbra volume was unknown.
COVES, cortical vein opacification score; TICI, Thrombolyis in Cerebral Infarction.