Ischemic stroke rate more than seven times higher with Coron
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It is uncertain whether coronavirus disease 2019 (COVID-19) is associated with a higher risk of ischemic stroke than would be expected from a viral respiratory infection.

This study aimed to compare the rate of ischemic stroke between patients with COVID-19 and patients with influenza, a respiratory viral illness previously associated with stroke.

This retrospective cohort study was conducted at 2 academic hospitals in New York City, New York, and included adult patients with emergency department visits or hospitalizations with COVID-19. The comparison cohort included adults with emergency department visits or hospitalizations with influenza A/B.

Results: Among 1916 patients with COVID-19, 31 had an acute ischemic stroke. The median age of patients with stroke was 69 years; 18 were men. Stroke was the reason for hospital presentation in 8 cases. In comparison, 3 of 1486 patients with influenza had an acute ischemic stroke. After adjustment for age, sex, and race, the likelihood of stroke was higher with COVID-19 infection than with influenza infection. The association persisted across sensitivity analyses adjusting for vascular risk factors, viral symptomatology, and intensive care unit admission.

Conclusively, In this retrospective cohort study from 2 New York City academic hospitals, approximately 1.6% of adults with COVID-19 who visited the emergency department or were hospitalized experienced ischemic stroke, a higher rate of stroke compared with a cohort of patients with influenza. Additional studies are needed to confirm these findings and to investigate possible thrombotic mechanisms associated with COVID-19.

Source: https://jamanetwork.com/journals/jamaneurology/fullarticle/2768098
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