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Thursday, September 29, 2022

COVID-19 infection increases risk of long-term brain problems

According to a new study published in the journal ‘Nature Medicine’, people infected with the virus are at increased risk of developing several neurological conditions in the first year after infection, ranging from stroke to cognitive and memory problems, depression, anxiety or migraine. Are included. ,

by researchers from the Washington University School of Medicine in St. Louis and the St. Louis Veterans Affairs Health Care System. This comprehensive analysis of federal health data shows that post-Covid brain tremors and involuntary muscle contractions are associated with movement disorders. Epileptic seizures, hearing and vision abnormalities, and balance and coordination difficulties, as well as other symptoms similar to those experienced with Parkinson’s disease.

“Our study provides a comprehensive assessment of the long-term neurological consequences of COVID-19,” said lead author Ziad al-Ali, a clinical epidemiologist at the University of Washington.

“Previous studies have mostly examined a small set of neurological outcomes in hospitalized patients, and we evaluated 44 brain and neurological disorders among hospitalized and outpatients, including those admitted to the intensive care unit.” Results show devastating long-term effects of COVID-19. These are part of the longer COVID. The virus is not always as benign as some believe.”

Overall, COVID-19 has contributed to more than 40 million new cases of neurological disorders worldwide, Al-Aly says.

Aside from having a COVID infection, there are few specific risk factors for long-term neurological problems. “We are seeing brain problems in previously healthy individuals and in people with mild infections,” says Al-Aly. It doesn’t matter whether you are young or old, female or male, or what your caste is. It doesn’t matter whether you smoke or not, or if you have other unhealthy habits or conditions.

Some of the people in the study were vaccinated for COVID-19 because vaccines were not yet widely available for the study period, March 2020 to the beginning of January 2021. The data also predates COVID from Delta, O’Micron and others.

An earlier study in Nature Medicine, led by Al-Ali, found that vaccines reduce the risk of long-term brain problems by a small amount — about 20%. “It is certainly important to get vaccinated, but it is also important to understand that they do not provide complete protection against these long-term neurological disorders,” warns Al-Aly.

Researchers analyzed nearly 14 million anonymized medical records from a database maintained by the US Department of Veterans Affairs, the nation’s largest integrated health system. Patients were of all ages, races and genders.

They created a controlled data set of 154,000 people who tested positive for COVID-19 at some point between March 1, 2020 and January 15, 2021, and who survived the first 30 days after infection Were.

Statistical modeling was used to compare neurological outcomes in the COVID-19 dataset with two other groups of people infected with the virus: a control group of more than 5.6 million patients who did not have COVID-19 during the same period was; and a control group of more than 5.8 million people from March 2018 to December 31, 2019, long before the virus infected and killed millions worldwide.

Researchers examined brain health over a one-year period. Neurological conditions occurred in 7% more people with COVID-19 than those who had not been infected with the virus. Adding this percentage to the number of COVID-19 cases in the United States, this translates to about 6.6 million people who have suffered brain disorders associated with the virus.

Memory problems – colloquially called brain fog – are one of the most common symptoms related to the brain and long-lasting viruses. Compared to the control groups, those who contracted the virus had a 77% increased risk of developing memory problems. “These problems resolve in some people, but persist in many others,” Al-Aly said. “At this time, the proportion of people who improve compared to those with permanent problems is unknown.”

Interestingly, the researchers observed an increased risk of Alzheimer’s disease in people infected with the virus. Two more cases of Alzheimer’s were reported for every 1,000 people with COVID-19, compared to the control groups.

“It is unlikely that someone who has COVID-19 will grow out of Alzheimer’s,” Al-Aly said. “Alzheimer’s takes years to appear, but we suspect that people who are predisposed to Alzheimer’s may be motivated by it.” COVID, which means they are on a faster path to the development of the disease. It’s rare, but worrisome,” he admits.

In addition, compared to the control groups, those who had the virus were 50% more likely to have an ischemic stroke, which occurs when a blood clot or other blockage blocks an artery’s ability to carry blood and oxygen to the brain. Does.

“Several studies by other researchers in both rats and humans have shown that SARS-CoV-2 can attack the lining of blood vessels and trigger a stroke or seizures,” said Al-Ali. Suddenly there’s a stroke.”

Overall, compared to uninfected people, people who had COVID-19 were 80% more likely to have epilepsy or seizures, 43% more likely to develop a mental disorder such as anxiety or depression, to have mild to severe headaches. The probability was 35% higher. and a 42% higher risk of movement disorders. The latter include involuntary muscle contractions, tremors, and other Parkinson’s-like symptoms.

People affected by COVID-19 were also 30% more likely to suffer from eye problems, such as blurred vision, dryness and swelling of the retina, and 22% more likely to develop hearing abnormalities, such as tinnitus or earaches Ringing

“Our study adds to this growing body of evidence by providing a comprehensive account of the neurological consequences of COVID-19 one year after infection,” said Al-Ali.

The long-lasting effects of COVID on the brain and other systems highlight the need for governments and health systems to develop public health and prevention policies and strategies to manage the ongoing pandemic and plan for a post-COVID world. can be created. Al-Ali recommends. “Given the sheer scale of the pandemic, addressing these challenges requires immediate and coordinated response strategies – but, so far, absent – at the global, national and regional levels,” he concluded.

World Nation News Desk
World Nation News Deskhttps://worldnationnews.com/
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