Abstract
Whether patients with infarct volume ≥150mL could benefit from endovascular thrombectomy (EVT) remains unclear. Patients (n=104) with anterior circulation Alberta Stroke Program Early Computed Tomography Score <6 were screened for infarct volume ≥150mL using the Pullicino formula × (1-22%). The following were compared with the baseline at 90 days: the modified Rankin scale score (mRS) ≤3, mortality rate, symptomatic intracranial hemorrhage and any intracranial hemorrhage within 48 hours, and modified Thrombolysis in Cerebral Infarction (mTICI) ≥2b between the EVT and drug therapy (DT) groups. In patients with infarct volumes ≥150mL, mRS≤3 at 90 days was higher in the EVT group than in the DT group [adjusted odds risk (aOR), 5.52; 95% CI: 1.10-28.24, P =0.04), and mTICI ≥2b at 82.8%. Intracranial hemorrhage within 48 hours occurred in 7 (24.1%) patients in the EVT group and 5 (14.7%) in the DT group (aOR, 0.75; 95% CI: 0.16-3.46; P =0.71). Older age (aOR, 0.94; 95% CI: 0.90-0.99, P =0.01), EVT treatment (aOR, 4.51; 95% CI: 1.60-12.78, P =0.01), and infarct volume ≥150mL (aOR, 0.11; 95% CI: 0.04-0.31, P <0.01) were significantly associated with patient prognosis. Patients with infarct volume ≥150mL who received EVT had a higher proportion of mRS≤3 compared with those who received DT. However, there was no statistically significant difference in intracranial hemorrhage and death between the groups. EVT, smaller infarct volume, and younger age were associated with a good prognosis. The findings require large sample data verification.
Published Version
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