Multiple neurological disorders more common
According to a study, Kovid-19 increases the risk of Alzheimer’s
06/26/2022, 2:28 PM
Covid-19 was associated with early neurological diseases. A large-scale study has now determined that the risk of Alzheimer’s, Parkinson’s and cerebral infarction is significantly increased. But this also applies to other respiratory diseases.
People who tested positive for COVID-19 have a higher risk of developing neurological diseases such as Alzheimer’s and Parkinson’s – a new study from Denmark analyzed health data from more than half the population. it was done. The research was presented at the Congress of the European Academy of Neurology (EAN).
The researchers looked more closely at data from 919,731 people who were tested for Covid-19. Out of these 43,375 results came positive. And in these patients, the authors found a 3.5-fold increased risk of developing Alzheimer’s disease. The risk was 2.6 times higher for Parkinson’s and 2.7 times higher for cerebral infarction. The risk of suffering a brain hemorrhage was also increased five-fold.
The study analyzed inpatients and outpatients in Denmark between February 2020 and November 2021, as well as influenza patients from the same period before the pandemic. The researchers used statistical methods to calculate the relative risk.
Exact risk long unclear
“After the outbreak of the Covid-19 pandemic, the precise nature and evolution of the effects of COVID-19 on neurological diseases remained unclear for more than two years,” said Pardis Zarifkar of Copenhagen’s Rigshospitalet and lead author of the study. to do message, According to Zarifkar, an association with neurological syndromes was found in earlier studies. However, it remains unclear whether COVID-19 also affects the frequency of certain neurological diseases – and whether it is different from other respiratory infections.
It is now clear that the risk of nervous diseases is higher for COVID 19 patients than for those who did not – but not higher than those who have been diagnosed with the flu or another respiratory disease.
However, there is clearly a difference: COVID-19 patients had a 1.7 times higher risk of cerebral infarction than patients older than 80 years of flu or bacterial pneumonia. However, the frequency of other nerve diseases such as multiple sclerosis, myasthenia gravis, Guillain-Barré syndrome and narcolepsy did not increase after COVID-19, flu or pneumonia.
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