A preliminary study of patients hospitalised with COVID-19 has found the disease can damage the brain, causing complications such as stroke, inflammation, psychosis and dementia-like symptoms in some severe cases.
The findings are the first detailed look at a range of neurological complications of COVID-19, the researchers said, and underline a need for larger studies to find the mechanisms behind them and assist the search for treatments.
The study, published in the Lancet Psychiatry journal on Thursday, looked in detail at 125 cases from across the UK. Co-lead researcher Benedict Michael, from Liverpool University, said it was important to note that it focused on severe cases. The most common brain complication seen was stroke, which was reported in 77 of 125 patients. Of these, most were in patients over 60, and most were caused by a blood clot in the brain, known as an ischaemic stroke.
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