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COVID-19 Positive Patients at Far Higher Risk of Developing Serious Neurodegenerative Disorders - SciTechDaily

COVID-19 Positive Patients at Far Higher Risk of Developing Serious Neurodegenerative Disorders - SciTechDaily

COVID-19 Positive Patients at Far Higher Risk of Developing Serious Neurodegenerative Disorders - SciTechDaily
Jun 27, 2022 1 min, 42 secs

Researchers found that people who tested positive for COVID-19 had a 4.8 times increased risk of intracerebral hemorrhage (bleeding in the brain), 3.5 times increased risk of Alzheimer’s disease, 2.6 times increased risk of Parkinson’s disease, and 2.7 times increased risk of ischaemic stroke.

COVID-19 positive outpatients are at a far increased risk of neurodegenerative disorders compared with individuals who tested negative for the virus, a new study presented today at the 8th European Academy of Neurology (EAN) Congress has shown.

The research study, which analyzed the health records of over half of the Danish population, found that those who had tested positive for COVID-19 were at a much higher risk of Alzheimer’s disease, Parkinson’s disease, and ischaemic stroke.

Out of 919,731 individuals that were tested for COVID-19 within the study, researchers found that the 43,375 people who tested positive had a 3.5 times increased risk of being diagnosed with Alzheimer’s disease, 2.6 times with Parkinson’s disease, 2.7 times with ischaemic stroke, and 4.8 times with intracerebral hemorrhage (bleeding in the brain).

Pardis Zarifkar, lead author from the Department of Neurology, Rigshospitalet, Copenhagen, Denmark, explained, “More than two years after the onset of the COVID-19 pandemic, the precise nature and evolution of the effects of COVID-19 on neurological disorders remained uncharacterized.

The increased risk of most neurological diseases was, however, no higher in COVID-19-positive patients than in people who had been diagnosed with influenza or other respiratory illnesses.

COVID-19 patients did have a 1.7 times increased risk of ischaemic stroke in comparison to influenza and bacterial pneumonia in patients over 80 years of age.

Pardis Zarifkar added, “We found support for an increased risk of being diagnosed with neurodegenerative and cerebrovascular disorders in COVID-19 positive compared to COVID-negative patients, which must be confirmed or refuted by large registry studies in the near future.

Reassuringly, apart from ischemic stroke, most neurological disorders do not appear to be more frequent after COVID-19 than after influenza or community-acquired bacterial pneumonia.”.

Reference: Frequency of neurological diseases after COVID-19, influenza A/B and bacterial pneumonia, presented at the EAN Congress 2022.

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