COVID-19 affects the nervous system of an infected individual, reports new study

▴ COVID-19 affects the nervous system of an infected individual, reports new study
COVID-19 infects nervous system , including the brain, spinal cord, nerves, and muscles

A new review of neurological symptoms of COVID-19 patients in current scientific literature has revealed that the disease poses a global threat to the entire nervous system.

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According to the researchers from Northwestern Medicine, the US, about half of hospitalised patients have neurological manifestations of COVID-19, which include headache, dizziness, decreased alertness, difficulty concentrating, disorders of smell and taste, seizures, strokes, weakness and muscle pain.

“It’s important for the general public and physicians to be aware of this, because a SARS-CoV-2 infection may present with neurologic symptoms initially, before any fever, cough or respiratory problems occur,” said lead author of the review, Dr Igor Koralnik, Northwestern Medicine chief of neuro-infectious diseases and global neurology and a professor of neurology at Northwestern University Feinberg School of Medicine.

           “This understanding is key to direct appropriate clinical management and treatment,” Koralnik said.

The researchers highlight that the disease may affect the entire nervous system, including the brain, spinal cord and nerves as well as the muscles. There are many different ways COVID-19 can cause neurological dysfunction, they explain. As the disease may affect multiple organs (lung, kidney, heart), the brain may also suffer from lack of oxygenation or from clotting disorders that may lead to ischemic or haemorrhagic strokes. In addition, the virus may cause a direct infection of the brain and meninges. Finally, the researchers say the reaction of the immune system to the infection may cause inflammation that can damage the brain and nerves.

Now, Koralnik and his colleagues have formed a Neuro-COVID research team and started a retrospective analysis of all COVID-19 patients hospitalised at Northwestern Medicine to determine the frequency and type of neurological complications, as well as response to treatment.

Since knowledge about the long term outcome of neurologic manifestations of COVID-19 is limited, Koralnik also will follow some of those patients prospectively in his new outpatient Neuro-COVID clinic to determine if neurological problems are temporary or permanent. According to Koralnik, these studies will provide the foundation on how to diagnose, manage and treat the many neurologic manifestations of COVID-19.

Tags : #CoronavirusStudy #NorthWesternMedicine #NervousSystem #Brain #SpinalCord #Nerves #Muscles #DrIgorKoralnik #Neurology #NeuroCovid

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