Evidence map›Paper›PMID 33426733›Full record

SynthesisEuropean journal of neurology2021

Cerebral venous thrombosis and severe acute respiratory syndrome coronavirus-2 infection: A systematic review and meta-analysis.

Tommaso Baldini, Gian Maria Asioli, Michele Romoli, Mariana Carvalho Dias, Eva C Schulte, Larissa Hauer, Diana Aguiar De Sousa, Johann Sellner, Andrea Zini

Open access · greenAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in European journal of neurology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed, 5 pooled it
16.7field-weighted citation impact, top 1% 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

81 citing papers in PubMed, 5 syntheses or guidelines pooled it, 169 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  5. Sex Differences and Clinical Outcomes of Patients with Coronavirus Disease 2019 Infection and Cerebral Venous Sinus Thrombosis: A Systematic Review.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    Pooled it
  6. Trial
  7. Review
  8. COVID-19 and stroke in women: impact on clinical, psychosocial and research aspects.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2024
    Review
  9. Article
  10. Article
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  12. Physical activity status prevents symptoms of long covid: Sulcovid-19 survey.BMC sports science, medicine & rehabilitation · 2023
    Article
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  14. Review
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21 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

9 authors at 5 institutions in 4 countries.

Tommaso BaldiniIRCCS Istituto delle Scienze Neurologiche di Bologna, Neurology and Metropolitan Stroke Center, "C.A. Pizzardi" Maggiore Hospital, Bologna, Italy.
Gian Maria AsioliIRCCS Istituto delle Scienze Neurologiche di Bologna, Neurology and Metropolitan Stroke Center, "C.A. Pizzardi" Maggiore Hospital, Bologna, Italy.
Michele RomoliIRCCS Istituto delle Scienze Neurologiche di Bologna, Neurology and Metropolitan Stroke Center, "C.A. Pizzardi" Maggiore Hospital, Bologna, Italy.ORCID https://orcid.org/0000-0001-8009-8543
Mariana Carvalho DiasDepartment of Neurosciences and Mental Health (Neurology), Hospital de Santa Maria/CHLN, University of Lisbon, Lisbon, Portugal.
Eva C SchulteDepartment of Psychiatry and Psychotherapy, University Hospital, Ludwig-Maximilians-University Munich, Munich, Germany.
Larissa HauerDepartment of Psychiatry, Psychotherapy and Psychosomatic Medicine, Christian Doppler Medical Center, Paracelsus Medical University, Salzburg, Austria.
Diana Aguiar De SousaDepartment of Neurosciences and Mental Health (Neurology), Hospital de Santa Maria/CHLN, University of Lisbon, Lisbon, Portugal.ORCID https://orcid.org/0000-0002-6702-7924
Johann SellnerDepartment of Neurology, Landesklinikum Mistelbach-Gänserndorf, Mistelbach, Austria.ORCID https://orcid.org/0000-0001-8749-5533
Andrea ZiniIRCCS Istituto delle Scienze Neurologiche di Bologna, Neurology and Metropolitan Stroke Center, "C.A. Pizzardi" Maggiore Hospital, Bologna, Italy.
Istituto delle Scienze Neurologiche di Bologna · ITParacelsus Medical University · ATUniversity of Lisbon · PTTechnical University of Munich · DEUniversity of Perugia · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeSevere acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection predisposes patients to arterial and venous thrombosis. This study aimed to systematically review the available evidence in the literature for cerebral venous thrombosis (CVT) in association with coronavirus disease-2019 (COVID-19).

methodsWe searched MEDLINE, Embase, and Cochrane Central Register of Controlled Trials databases to identify cases of COVID-19-associated CVT. The search period spanned 1 January 2020 to 1 December 2020, and the review protocol (PROSPERO-CRD42020214327) followed Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Identified studies were evaluated for bias using the Newcastle-Ottawa scale. A proportion meta-analysis was performed to estimate the frequency of CVT among hospitalized COVID-19 patients.

resultsWe identified 57 cases from 28 reports. Study quality was mostly classified as low. CVT symptoms developed after respiratory disease in 90%, and the mean interval was 13 days. CVT involved multiple sites in 67% of individuals, the deep venous system was affected in 37%, and parenchymal hemorrhage was found in 42%. Predisposing factors for CVT beyond SARS-CoV-2 infection were present in 31%. In-hospital mortality was 40%. Using data from 34,331 patients, the estimated frequency of CVT among patients hospitalized for SARS-CoV-2 infection was 0.08% (95% confidence interval [CI]: 0.01-0.5). In an inpatient setting, CVT accounted for 4.2% of cerebrovascular disorders in individuals with COVID-19 (cohort of 406 patients, 95% CI: 1.47-11.39).

conclusionsCerebral venous thrombosis in the context of SARS-CoV-2 infection is a rare, although there seems to be an increased relative risk. High suspicion is necessary, because the diagnosis of this potentially life-threatening condition in COVID-19 patients can be challenging. Evidence is still scarce on the pathophysiology and potential prevention of COVID-19-associated CVT.

Indexed as

COVID-19Intracranial ThrombosisVenous ThrombosisCohort StudiesHumansSARS-CoV-2cerebral venous sinus thrombosiscerebral venous thrombosiscoronavirusCOVID-19intracranial complicationintracranial sinus thrombosisSARS-CoV-2

Identifiers

PMID33426733
PMCPMC8014715
OpenAlexW3120542241

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.