A study conducted among more than 84,000 British patients with Covid, from hospitalized to asymptomatic, has concluded that SARS-CoV-2 causes long-term neurological damage. Some patients even have a brain deterioration equivalent to aging 10 years.
This new research, led by Adam Hampshire, doctor of the Imperial College London, reveals some preliminary conclusions – the study has not yet been reviewed – worrying. According to the scientists, “people who had recovered from Covid, including those who had already stopped reporting symptoms, showed cognitive deficits “chronically.
These effects, known as the ‘long Covid’, have been found in people who had been hospitalized, but also in those patients who had suffered a mild Covid without breathing difficulty, as explained in the study published in MedRxiv.
In the worst case scenario, researchers have detected cases in which Covid infection has been linked to mental decline equivalent to a brain aging of about 10 years.
“Our analyzes provide evidence to support the hypothesis that COVID-19 infection likely has consequences for cognitive function that persist in the recovery phase. The deficits observed varied according to the severity of the symptoms respiratory diseases, but they do not present significant differences according to age, educational level or other demographic and socioeconomic variables, “says the report.
The effects vary according to the severity of the Covid suffered, but the patients already recovered from the infection and without symptoms, also presented cognitive deficiencies, the researchers warn.
The Cognitive damages detected in Covid patients “are not insubstantial”scientists argue. And they support this claim in that some patients who required ventilation in hospital even had a reduction in cognitive functions “equivalent to a regression of an average of 10 years.”
The study, called Great British Intelligence Test, has analyzed the responses of 84,285 adults, the majority from the UK. The questionnaire collected, for example, tests to solve problems of meaning, visual acuity tests or to assess memory capacity.