US News COVID patients have slightly increased risk of neurological problems

22:30  18 august  2022
22:30  18 august  2022 Source:   berliner-zeitung.de

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COVID-19 patients have a slightly increased risk for some psychiatric and neurological problems two years after the infection. This is reported by British researchers in the specialist journal The Lancet Psychiatry after evaluating the medical records of 1.28 million COVID -19 patients and of similar many people with a different respiratory disease.

  Covid-Patienten haben leicht erhöhtes Risiko für neurologische Probleme © provided by Berliner Zeitung

The team led by Paul Harrison and Maxime Taquet from the University of Oxford used data from the USA, Great Britain, Spain, Bulgaria, Australia, India, Malaysia and Taiwan. When comparing, the researchers made sure that the group of Covid patients and the control group were very similar with other respiratory diseases with regard to age, gender, ethnic origin and other characteristics. The Covid diseases were diagnosed between January 2020 and April 2022.

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The results initially contradict the suspicion that Covid could cause long -term moods. "It is good news that the excess of depression and fear diagnoses according to Covid-19 is only short-lived and is not observed in children," Harrison is quoted in a statement from his university. Accordingly, 43 days after the Covid diagnosis were at the same level as in the control group, this was the case after 58 days. In the age group under the age of 18, the scientists found no increased occurrence of such disorders.

, however, indicates the study in COVID-19 patients to somewhat higher risks to excesses of consciousness (Brain Fog), dementia, psychotic relapses and epilepsy at the end of the two-year follow-up period. Calculated on 10,000 patients, there were 640 cases of consciousness tremors in the COVID group of 18 to 64-year-olds, while the control group was 550 cases. In the more than 64-year-olds, 450 cases of dementia occurred in 10,000 covid patients, in the control group there were 330 cases.

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The researchers also examined the effects of the Coronavirus variants Alpha, Delta and Omikron . The delta variant resulted in an increased risk of ischemic stroke, epilepsy, excesses of consciousness, insomnia and anxiety disorders compared to the alpha variant. The omikron variant therefore had hardly any differences in the delta variant, but the death rate was lower.

"The results throw a new light on the long-term consequences for mental health and the brain of people after a Covid 19 infection," says Taquet. However, the authors give that because of the database Covid cases with little or no symptoms could be underrepresented . It was also not taken into account when the neurological or psychiatric diseases were first diagnosed and how difficult the cases were. The team further admits that information about covid diseases or vaccinations against the corona virus, which could distort the results, could also admit.

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Jonathan Rogers and Glyn Lewis from the University of College London, who were not involved in the study, write in a comment, also in "The Lancet Psychiatry": "This is the first study that tries to part of the variety of persistent neurological and psychiatric To examine aspects of Covid-19 in a large data record. ”Some clinical characteristics require another exam.

The study is mainly relevant for the enormous number of patients, the control group and the long observation period of two years, says Peter Berlit, General Secretary of the German Society for Neurology (DGN). However, the meaningfulness is restricted by the fact that the severity of the respiratory diseases in the control group has not been taken into account. The study does not give an increased risk of dementia in covid patients. " It is known that latent dementia is often manifest due to a serious event, such as a Covid 19 disease, without there being a causal connection ," emphasizes the neurologist.

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