Predictors and prognoses of Willisian collateral failure during mechanical thrombectomy.

While the rate of successful reperfusion was only marginally significant at 83.3% for patients with a good outcome compared to 50.0% for those with a poor outcome ( p = 0.051), the rate of successful reperfusion of newly embolized territory was significantly higher in the good outcome group (91.7%) than in the poor outcome group (30.8%, p < 0.001), with shorter procedure time (53 ± 27 min vs. 113 ± 55 min, respectively, p < 0.001).

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