Evidence map›Paper›PMID 32653111›Full record

ArticleNeurophysiologie clinique = Clinical neurophysiology2020

Electroencephalogram (EEG) in COVID-19: A systematic retrospective study.

Ana-Maria Petrescu, Delphine Taussig, Viviane Bouilleret

Open access · greenAbstract read
In one paragraph

Article in Neurophysiologie clinique = Clinical neurophysiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 11 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 11 pooled it
8.5field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

50 citing papers in PubMed, 11 syntheses or guidelines pooled it, 105 citations in OpenAlex.

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  7. COVID-19, de novo seizures, and epilepsy: a systematic review.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2021
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  11. Neurological Complications of COVID-19 and Possible Neuroinvasion Pathways: A Systematic Review.International journal of environmental research and public health · 2020
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Ana-Maria PetrescuUniversité Paris Saclay-APHP, Unité de Neurophysiologie Clinique et d'Epileptologie (UNCE), Le Kremlin-Bicêtre, France.
Delphine TaussigUniversité Paris Saclay-APHP, Unité de Neurophysiologie Clinique et d'Epileptologie (UNCE), Le Kremlin-Bicêtre, France. Electronic address: delphine.taussig@aphp.fr.
Viviane BouilleretUniversité Paris Saclay-APHP, Unité de Neurophysiologie Clinique et d'Epileptologie (UNCE), Le Kremlin-Bicêtre, France; UMR BIOMAPS- CNRS, Université Paris Saclay, Inserm, CEA, 91401 Orsay, France.
Université Paris-Saclay · FRCentre National de la Recherche Scientifique · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesAlthough rare, neurological manifestations in SARS-CoV-2 infection are increasingly being reported. We conducted a retrospective systematic study to describe the electroencephalography (EEG) characteristics in this disease, looking for specific patterns.

methodsEEGs performed in patients with positive PCR for SARS-CoV-2 between 25/03/2020 and 06/05/2020 in the University Hospital of Bicêtre were independently reviewed by two experienced neurologists. We used the American Clinical Neurophysiology Society's terminology for the description of abnormal patterns. EEGs were classified into five categories, from normal to critically altered. Interobserver reliability was calculated using Cohen's kappa coefficient. Medical records were reviewed to extract demographics, clinical, imaging and biological data.

resultsForty EEGs were reviewed in 36 COVID-19 patients, 18 in intensive care units (ICU) and 22 in medicine units. The main indications were confusion or fluctuating alertness for 23 (57.5%) and delayed awakening after stopping sedation in ICU in six (15%). EEGs were normal to mildly altered in 23 (57.5%) contrary to the 42.5% where EEG alterations were moderate in four (10%), severe in eight (20%) and critical in five (12.5%). Generalized periodic discharges (GPDs), multifocal periodic discharges (MPDs) or rhythmic delta activity (RDA) were found in 13 recordings (32.5%). EEG alterations were not stereotyped or specific. They could be related to an underlying morbid status, except for three ICU patients with unexplained encephalopathic features.

conclusionIn this first systematic analysis of COVID-19 patients who underwent EEG, over half of them presented a normal recording pattern. EEG alterations were not different from those encountered in other pathological conditions.

Indexed as

BetacoronavirusElectroencephalographyAdultAgedAged, 80 and overArousalBrain WavesCardiovascular DiseasesComorbidityConfusionCoronavirus InfectionsCOVID-19Deep SedationDelayed Emergence from AnesthesiaDementiaFemaleBrainCOVID 19ElectroencephalogramEncephalitisEncephalopathyIntensive care unit

Identifiers

PMID32653111
PMCPMC7315937
OpenAlexW3038116450

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.