Evidence map›Paper›PMID 33054673›Full record

ArticleStroke2020

Large and Small Cerebral Vessel Involvement in Severe COVID-19: Detailed Clinical Workup of a Case Series.

Emanuela Keller, Giovanna Brandi, Sebastian Winklhofer, Lukas L Imbach, Daniel Kirschenbaum, Karl Frontzek, Peter Steiger, Sabeth Dietler, Marcellina Haeberlin, Jan Willms and 9 more

Open access · greenAbstract read
In one paragraph

Article in Stroke, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers, 10 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed, 10 pooled it
8.3field-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

61 citing papers in PubMed, 10 syntheses or guidelines pooled it, 106 citations in OpenAlex.

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  6. COVID-19 associated brain/spinal cord lesions and leptomeningeal enhancement: A meta-analysis of the relationship to CSF SARS-CoV-2.Journal of neuroimaging : official journal of the American Society of Neuroimaging · 2021
    Pooled it
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  8. Neuropathologic findings of patients with COVID-19: 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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  14. Extracellular Vesicles: The Invisible Heroes and Villains of COVID-19 Central Neuropathology.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
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1 more citing papers are in PubMed but not listed here.

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

19 authors at 4 institutions in 2 countries.

Emanuela KellerNeurocritical Care Unit, Department of Neurosurgery and Institute of Intensive Care Medicine (E.K.), University Hospital and University of Zurich, Switzerland.
Giovanna BrandiInstitute of Intensive Care Medicine (G.B., P.S., S.D., J.W.), University Hospital and University of Zurich, Switzerland.
Sebastian WinklhoferDepartment of Neuroradiology (S.W., C.S.), University Hospital and University of Zurich, Switzerland.
Lukas L ImbachDepartment of Neurology (L.L.I., M. Haeberlin), University Hospital and University of Zurich, Switzerland.
Daniel KirschenbaumDepartment of Neuropathology (D.K., K.F.), University Hospital and University of Zurich, Switzerland.
Karl FrontzekDepartment of Neuropathology (D.K., K.F.), University Hospital and University of Zurich, Switzerland.
Peter SteigerInstitute of Intensive Care Medicine (G.B., P.S., S.D., J.W.), University Hospital and University of Zurich, Switzerland.
Sabeth DietlerInstitute of Intensive Care Medicine (G.B., P.S., S.D., J.W.), University Hospital and University of Zurich, Switzerland.
Marcellina HaeberlinDepartment of Neurology (L.L.I., M. Haeberlin), University Hospital and University of Zurich, Switzerland.
Jan WillmsInstitute of Intensive Care Medicine (G.B., P.S., S.D., J.W.), University Hospital and University of Zurich, Switzerland.
Francesca PortaIntensive Care Unit, Graubuenden Cantonal Hospital, Chur, Switzerland (F.P., A.W.).
Adrian WaeckerlinIntensive Care Unit, Graubuenden Cantonal Hospital, Chur, Switzerland (F.P., A.W.).
Michael HuberInstitute of Medical Virology, University of Zurich, Switzerland (M. Huber).
Irene A AbelaDepartment of Infectious Diseases and Hospital Epidemiology (I.A.A.), University Hospital and University of Zurich, Switzerland.
Andreas LutterottiNeuroimmunology and Multiple Sclerosis Research Section (A.L., I.J.), University Hospital and University of Zurich, Switzerland.
Christoph StippichDepartment of Neuroradiology (S.W., C.S.), University Hospital and University of Zurich, Switzerland.
Christoph GlobasStroke Unit, Department of Neurology (C.G.), University Hospital and University of Zurich, Switzerland.
Zsuzsanna VargaDepartment of Pathology and Molecular Pathology (Z.V.), University Hospital and University of Zurich, Switzerland.
Ilijas JelcicNeuroimmunology and Multiple Sclerosis Research Section (A.L., I.J.), University Hospital and University of Zurich, Switzerland.
University Hospital of Zurich · CHInstitute of Neuroimmunology of the Slovak Academy of Sciences · SKKantonsspital Graubünden · CHInstitute of Virology of the Slovak Academy of Sciences · SK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeCase series indicating cerebrovascular disorders in coronavirus disease 2019 (COVID-19) have been published. Comprehensive workups, including clinical characteristics, laboratory, electroencephalography, neuroimaging, and cerebrospinal fluid findings, are needed to understand the mechanisms.

methodsWe evaluated 32 consecutive critically ill patients with COVID-19 treated at a tertiary care center from March 9 to April 3, 2020, for concomitant severe central nervous system involvement. Patients identified underwent computed tomography, magnetic resonance imaging, electroencephalography, cerebrospinal fluid analysis, and autopsy in case of death.

resultsOf 32 critically ill patients with COVID-19, 8 (25%) had severe central nervous system involvement. Two presented with lacunar ischemic stroke in the early phase and 6 with prolonged impaired consciousness after termination of analgosedation. In all but one with delayed wake-up, neuroimaging or autopsy showed multiple cerebral microbleeds, in 3 with additional subarachnoid hemorrhage and in 2 with additional small ischemic lesions. In 3 patients, intracranial vessel wall sequence magnetic resonance imaging was performed for the first time to our knowledge. All showed contrast enhancement of vessel walls in large cerebral arteries, suggesting vascular wall pathologies with an inflammatory component. Reverse transcription-polymerase chain reactions for SARS-CoV-2 in cerebrospinal fluid were all negative. No intrathecal SARS-CoV-2-specific IgG synthesis was detectable.

conclusionsDifferent mechanisms of cerebrovascular disorders might be involved in COVID-19. Acute ischemic stroke might occur early. In a later phase, microinfarctions and vessel wall contrast enhancement occur, indicating small and large cerebral vessels involvement. Central nervous system disorders associated with COVID-19 may lead to long-term disabilities. Mechanisms should be urgently investigated to develop neuroprotective strategies.

Indexed as

AgedAntibodies, ViralBrain IschemiaCerebral ArteriesCerebral HemorrhageCerebrospinal FluidCerebrovascular DisordersConsciousness DisordersContrast MediaCOVID-19COVID-19 Nucleic Acid TestingCOVID-19 Serological TestingCritical IllnessElectroencephalographyFemaleHumansAntibodies, ViralContrast Mediacentral nervous systemcerebrospinal fluidcerebrovascular disorderscoronavirus diseaseneuroimaging

Identifiers

PMID33054673
PMCPMC7678671
OpenAlexW3093218877

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.