Evidence map›Paper›PMID 33125542›Full record

SynthesisJournal of neurology2021

Neurological manifestations of patients infected with the SARS-CoV-2: a systematic review of the literature.

Federico Cagnazzo, Caroline Arquizan, Imad Derraz, Cyril Dargazanli, Pierre-Henri Lefevre, Carlos Riquelme, Nicolas Gaillard, Isabelle Mourand, Gregory Gascou, Alain Bonafe and 1 more

Open access · bronzeAbstract readSystematic Review
In one paragraph

Synthesis in Journal of neurology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 3 pooled it
5.7field-weighted citation impact, top 3% 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

40 citing papers in PubMed, 3 syntheses or guidelines pooled it, 79 citations in OpenAlex.

  1. Pooled it
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  8. Status Epilepticus with Unilateral Brain Edema in COVID-19.Internal medicine (Tokyo, Japan) · 2024
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  20. Recovery of functional fitness, lung function, and immune function in healthcare workers with nonsevere and severe COVID-19 at 13 months after discharge from the hospital: a prospective cohort study.International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2022
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 1 institution in 1 country.

Federico CagnazzoDepartment of Neuroradiology, Hôpital Gui de Chauliac, Montpellier University Medical Center, 80, Avenue Augustin Fliche, Montpellier, France. f-cagnazzo@chu-montpellier.fr.ORCID http://orcid.org/0000-0003-3159-1678
Caroline ArquizanDepartment of Neurology, Hôpital Gui de Chauliac, Montpellier University Medical Center, Montpellier, France.
Imad DerrazDepartment of Neuroradiology, Hôpital Gui de Chauliac, Montpellier University Medical Center, 80, Avenue Augustin Fliche, Montpellier, France.
Cyril DargazanliDepartment of Neuroradiology, Hôpital Gui de Chauliac, Montpellier University Medical Center, 80, Avenue Augustin Fliche, Montpellier, France.
Pierre-Henri LefevreDepartment of Neuroradiology, Hôpital Gui de Chauliac, Montpellier University Medical Center, 80, Avenue Augustin Fliche, Montpellier, France.
Carlos RiquelmeDepartment of Neuroradiology, Hôpital Gui de Chauliac, Montpellier University Medical Center, 80, Avenue Augustin Fliche, Montpellier, France.
Nicolas GaillardDepartment of Neurology, Hôpital Gui de Chauliac, Montpellier University Medical Center, Montpellier, France.
Isabelle MourandDepartment of Neurology, Hôpital Gui de Chauliac, Montpellier University Medical Center, Montpellier, France.
Gregory GascouDepartment of Neuroradiology, Hôpital Gui de Chauliac, Montpellier University Medical Center, 80, Avenue Augustin Fliche, Montpellier, France.
Alain BonafeDepartment of Neuroradiology, Hôpital Gui de Chauliac, Montpellier University Medical Center, 80, Avenue Augustin Fliche, Montpellier, France.
Vincent CostalatDepartment of Neuroradiology, Hôpital Gui de Chauliac, Montpellier University Medical Center, 80, Avenue Augustin Fliche, Montpellier, France.
Université de Montpellier · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo perform an updated review of the literature on the neurological manifestations of COVID-19-infected patients

methodsA PRISMA-guideline-based systematic review was conducted on PubMed, EMBASE, and SCOPUS. Series reporting neurological manifestations of COVID-19 patients were studied.

results39 studies and 68,361 laboratory-confirmed COVID-19 patients were included. Up to 21.3% of COVID-19 patients presented neurological symptoms. Headache (5.4%), skeletal muscle injury (5.1%), psychiatric disorders (4.6%), impaired consciousness (2.8%), gustatory/olfactory dysfunction (2.3%), acute cerebrovascular events (1.4%), and dizziness (1.3%), were the most frequently reported neurological manifestations. Ischemic stroke occurred among 1.3% of COVID-19 patients. Other less common neurological manifestations were cranial nerve impairment (0.6%), nerve root and plexus disorders (0.4%), epilepsy (0.7%), and hemorrhagic stroke (0.15%). Impaired consciousness and acute cerebrovascular events were reported in 14% and 4% of patients with a severe disease, respectively, and they were significantly higher compared to non-severe patients (p < 0.05). Individual patient data from 129 COVID-19 patients with acute ischemic stroke (AIS) were extracted: mean age was 64.4 (SD ± 6.2), 78.5% had anterior circulation occlusions, the mean NIHSS was 15 (SD ± 7), and the intra-hospital mortality rate was 22.8%. Admission to the intensive care unit (ICU) was required among 63% of patients.

conclusionThis updated review of literature, shows that headache, skeletal muscle injury, psychiatric disorders, impaired consciousness, and gustatory/olfactory dysfunction were the most common neurological symptoms of COVID-19 patients. Impaired consciousness and acute cerebrovascular events were significantly higher among patients with a severe infection. AIS patients required ICU admission in 63% of cases, while intra-hospital mortality rate was close to 23%.

Indexed as

Brain IschemiaCOVID-19Nervous System DiseasesStrokeHumansMiddle AgedSARS-CoV-2Acute ischemic strokeCOVID-19Neurological manifestationsSARS-CoV-2

Identifiers

PMID33125542
PMCPMC7597753
OpenAlexW3097133707

What OpenQuestion holds

Textmetadata
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.