Cognitive deficit in post-acute COVID-19: an opportunity for EEG evaluation?
Neurol Sci
; 44(5): 1491-1498, 2023 May.
Article
in English
| MEDLINE | ID: covidwho-2230137
ABSTRACT
BACKGROUND AND PURPOSE:
Among the most common post-COVID symptoms, many patients experienced subjective cognitive deficit, commonly named "brain fog," that might be present also in those individuals without severe acute COVID-19 respiratory involvement. Some studies have investigated some of the mechanisms that might be associated with the brain fog with objective techniques including transcranial magnetic stimulation and neuroimaging.METHODS:
The aim of this study was to investigate the presence of electroencephalographic (EEG) alterations in people with post-COVID self-reported cognitive deficit.RESULTS:
Out of the 90 patients attending the post-COVID neurology ambulatory service, twenty patients presenting brain fog at least 4 weeks after acute non-severe COVID-19 infection, and without previous history of epilepsy, were investigated with 19-channel EEG, Montreal Cognitive Assessment (MoCA), and magnetic resonance imaging (MRI). EEG was found altered in 65% of the sample, among which 69% presented a slowing activity and 31% were characterized by epileptic discharges principally in the frontal areas. None of the patients showed DWI MRI lesions.CONCLUSIONS:
These findings highlight the usefulness of EEG analysis to objectively describe possible neurophysiological abnormalities in post-COVID patients presenting subjective cognitive deficit.Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Cognition Disorders
/
Epilepsy
/
COVID-19
Type of study:
Diagnostic study
/
Experimental Studies
/
Prognostic study
/
Qualitative research
Topics:
Long Covid
Limits:
Humans
Language:
English
Journal:
Neurol Sci
Journal subject:
Neurology
Year:
2023
Document Type:
Article
Affiliation country:
S10072-023-06615-0
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