Evidence map›Paper›PMID 33254369›Full record

SynthesisJournal of stroke and cerebrovascular diseases : the official journal of National Stroke Association2020

Cerebral Venous Thrombosis in Patients with COVID-19 Infection: a Case Series and Systematic Review.

Tian Ming Tu, Claire Goh, Ying Kiat Tan, Aloysius St Leow, Yu Zhi Pang, Jaime Chien, Humaira Shafi, Bernard Pl Chan, Andrew Hui, Jasmine Koh and 3 more

Open access · bronzeAbstract readCase ReportsSystematic Review
In one paragraph

Synthesis in Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed, 3 pooled it
9.2field-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

60 citing papers in PubMed, 3 syntheses or guidelines pooled it, 115 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. 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
  4. Review
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  10. Observational
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  18. Neuro-ophthalmic Sequelae in COVID-19 Recovered Cases.Indian journal of ophthalmology · 2022
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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

13 authors at 4 institutions in 1 country.

Tian Ming TuDepartment of Neurology, National Neuroscience Institute, Singapore.
Claire GohDepartment of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
Ying Kiat TanDepartment of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
Aloysius St LeowDivision of Neurology, Department of Medicine, National University Health System, Singapore.
Yu Zhi PangDepartment of Neurology, National Neuroscience Institute, Singapore.
Jaime ChienDepartment of Neurology, National Neuroscience Institute, Singapore.
Humaira ShafiDepartment of Neurology, National Neuroscience Institute, Singapore.
Bernard Pl ChanDivision of Neurology, Department of Medicine, National University Health System, Singapore.
Andrew HuiDivision of Neurology, Department of Medicine, Ng Teng Fong General Hospital, Singapore.
Jasmine KohDepartment of Neurology, National Neuroscience Institute, Singapore.
Benjamin Yq TanDepartment of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Division of Neurology, Department of Medicine, National University Health System, Singapore.
N Thirugnanam UmapathiDepartment of Neurology, National Neuroscience Institute, Singapore.
Leonard Ll YeoDepartment of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Division of Neurology, Department of Medicine, National University Health System, Singapore. Electronic address: leonard_ll_yeo@nuhs.edu.sg.
National Neuroscience Institute · SGNational University of Singapore · SGNational University Health System · SGNg Teng Fong General Hospital · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere has been increasing reports associating the coronavirus disease 2019 (COVID-19) with thromboembolic phenomenon including ischemic strokes and venous thromboembolism. Cerebral venous thrombosis (CVT) is a rare neurovascular emergency that has been observed in some COVID-19 patients, yet much remains to be learnt of its underlying pathophysiology.

objectiveWe present a case series of local patients with concomitant COVID-19 infection and CVT; and aim to perform a systematic review of known cases in the current literature.

methodsWe describe two patients with concomitant COVID-19 infection and CVT from a nationwide registry in Singapore. We then conducted a literature search in PubMed and Embase using a suitable keyword search strategy from 1st December 2019 to 11th June 2020. All studies reporting CVT in COVID-19 patients were included.

resultsNine studies and 14 COVID-19 patients with CVT were studied. The median age was 43 years (IQR=36-58) and majority had no significant past medical conditions (60.0%). The time taken from onset of COVID-19 symptoms to CVT diagnosis was a median of 7 days (IQR=6-14). CVT was commonly seen in the transverse (75.0%) and sigmoid sinus (50.0%); 33.3% had involvement of the deep venous sinus system. A significant proportion of patients had raised D-dimer (75.0%) and CRP levels (50.0%). Two patients reported presence of antiphospholipid antibodies. Most patients received anticoagulation (91.7%) while overall mortality rate was 45.5%.

conclusionsThe high mortality rate of CVT in COVID-19 infection warrants a high index of suspicion from physicians, and early treatment with anticoagulation should be initiated.

Indexed as

AdultAntibodies, AntiphospholipidAnticoagulantsBiomarkersCOVID-19C-Reactive ProteinFemaleFibrin Fibrinogen Degradation ProductsHumansMaleMiddle AgedRisk FactorsSinus Thrombosis, IntracranialTreatment OutcomeVenous ThrombosisAntibodies, AntiphospholipidAnticoagulantsBiomarkersC-Reactive ProteinFibrin Fibrinogen Degradation Productsfibrin fragment DAnticoagulationCerebral venous thrombosisCoronavirus disease 2019MortalitySystematic review

Identifiers

PMID33254369
PMCPMC7538072
OpenAlexW3091194312

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.