Cognitive impairment -- described as brain fog -- can persist for months in Covid-19 patients, even for some who were not hospitalized, according to a new study.
The research, published Friday in the journal JAMA Network Open, found that nearly a quarter of Covid-19 patients in a Mount Sinai Health System registry experienced some issues with their memory -- and although hospitalized patients were more likely to have such brain fog after a coronavirus infection, some outpatients had cognitive impairment too.
Here's how you can combat COVID-19 'brain fog' 10:57Among all the patients, the researchers found that 15% showed deficits in phonemic fluency in their speaking; 16% in a set of mental skills called their executive functioning; 18% showed deficits in their cognitive processing speed; 20% in their ability to process categories or lists; 23% in memory recall and 24% in memory encoding, among other impairments.
The authors noted the possibility for bias in the sample because patients came to Mount Sinai Health System because they were experiencing symptoms."The association of COVID-19 with executive functioning raises key questions regarding patients' long-term treatment," the researchers wrote."Future studies are needed to identify the risk factors and mechanisms underlying cognitive dysfunction as well as options for rehabilitation.
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