Cognitive domains affected post‐COVID‐19; a systematic review and meta‐analysis
European Journal of Neurology2024Vol. 32(1), pp. e16181–e16181
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Jack B. Fanshawe, Brendan Sargent, James Badenoch, Aman Saini, Cameron Watson, Aleksandra Pokrovskaya, Daruj Aniwattanapong, Isabella Conti, Charles Nye, Ella Burchill, Zain Hussain, Khanafi Said, Elinda Kuhoga, Kukatharmini Tharmaratnam, Sophie Pendered, Bernard Mbwele, Maxime Taquet, Greta K. Wood, Jonathan Rogers, Adam Hampshire, Alan Carson, Anthony S. David, Benedict Michael, Timothy R. Nicholson, Stella‐Maria Paddick, Charles E. Leek
Abstract
This review found moderate impairments across multiple domains of cognition in patients post-COVID-19, with no specific pattern. The reported literature was significantly heterogeneous, with a wide variety of cognitive tasks, small sample sizes and disparate initial disease severities limiting interpretability. The finding of consistent impairment across a range of cognitive tasks suggests broad, as opposed to domain-specific, brain dysfunction. Future studies should utilize a harmonized test battery to facilitate inter-study comparisons, whilst also accounting for the interactions between COVID-19, neurological sequelae and mental health, the interplay between which might explain cognitive impairment.
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