June 3, 2020 / Liz Szabo, Kaiser Health News
Doctors are fighting not only to save lives from COVID-19, but also to protect patients’ brains.
Although COVID-19 is best known for damaging the lungs, it also increases the risk of life-threatening brain injuries — from mental confusion to hallucinations, seizures, coma, stroke and paralysis. The virus may invade the brain, as well as starve the organ of oxygen by damaging the lungs. To fight the infection, the immune system sometimes overreacts, battering the brain and other organs it normally protects. 
Yet the pandemic has severely limited the ability of doctors and nurses to prevent and treat neurological complications. The severity of the disease and the heightened risk of infection have forced medical teams to abandon many of the practices that help them protect patients from delirium, a common side effect of mechanical ventilators and intensive care.
And while COVID-19 increases the risk of strokes, the pandemic has made it harder to diagnose them.
When doctors suspect a stroke, they usually order a brain MRI — a sophisticated type of scan. But many patients hospitalized with COVID-19 are too sick or unstable to be wheeled across the hospital to a scanner, said Dr. Kevin Sheth, a professor of neurology and neurosurgery at the Yale School of Medicine.