Abstract
Background: While there are reports of acute ischemic stroke (AIS) in COVID-19 patients, the overall incidence of acute ischemic stroke and clinical characteristics of large vessel occlusion in such patient remains to be established. Methods: A retrospective, international multicenter study of large vessel occlusion (LVO) was undertaken from March 1 to May 1, 2020 at 12 stroke centers from 4 countries. Detailed data were collected on consecutive LVOs in hospitalized patients with laboratory-confirmed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and the incidence of AIS/LVO was measured. Among patients who underwent mechanical thrombectomy, stroke outcomes along with COVID-19 symptoms were reported. Results: Out of a total of 6698 COVID-19 patients admitted to 10 stroke centers, the incidence of stroke was found to be 1.3% (range 0.6-2.6%). The median age of patients who presented with LVO was 51 years (range 27-87) and in the US centers, African Americans comprised 28% of all patients. Ten patients (16 %) were less than 50 years of age with no significant risk factors for LVOs the vast majority. Among the LVOs eligible for MT, the average time to presentation from symptom onset to presentation was 9.3 hours. Successful revascularization was achieved in 81% of patients and the intracranial hemorrhage rate was 14% with no symptomatic hemorrhages. Twenty-one (50%) patients were either discharged to home or to acute rehabilitation facilities. Conclusion: LVOs was predominant in patients with AIS and COVID-19, occurring at a significantly younger age and affecting African Americans disproportionately.
