Table 4

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.

PredictorsFirst pass reperfusion
OR95% CIP value
COVES1.251.1 to 1.420.001
Time from onset to reperfusion0.99940.998 to 10.204
Penumbra volume Tmax >6 s0.9980.996 to 10.071
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.