Evidence map›Paper›PMID 34029848›Full record

ArticleThrombosis research2021

Hypotheses behind the very rare cases of thrombosis with thrombocytopenia syndrome after SARS-CoV-2 vaccination.

Jonathan Douxfils, Julien Favresse, Jean-Michel Dogné, Thomas Lecompte, Sophie Susen, Charlotte Cordonnier, Aurélien Lebreton, Robert Gosselin, Pierre Sié, Gilles Pernod and 4 more

Open access · bronzeAbstract read
In one paragraph

Article in Thrombosis research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 1 pooled it
12.3field-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

39 citing papers in PubMed, 1 synthesis or guideline pooled it, 60 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. A review of venous thromboembolism in India.The Indian journal of medical research · 2023
    Review
  5. Acute limb ischemia secondary to vaccine-induced thrombotic thrombocytopenia.Annals of vascular surgery. Brief reports and innovations · 2023
    Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Stroke Associated with COVID-19 Vaccines.Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association · 2022
    Review
  16. Review
  17. Review
  18. Article
  19. Article
  20. Review
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

14 authors at 12 institutions in 4 countries.

Jonathan DouxfilsUniversity of Namur, Department of Pharmacy, Namur Research for Life Sciences, Namur Thrombosis and Hemostasis Center, Namur, Belgium; QUALIblood s.a., Namur, Belgium. Electronic address: jonathan.douxfils@unamur.be.
Julien FavresseUniversity of Namur, Department of Pharmacy, Namur Research for Life Sciences, Namur Thrombosis and Hemostasis Center, Namur, Belgium; Clinique Saint-Luc Bouge, Department of Laboratory Medicine, Bouge, Belgium.
Jean-Michel DognéUniversity of Namur, Department of Pharmacy, Namur Research for Life Sciences, Namur Thrombosis and Hemostasis Center, Namur, Belgium.
Thomas LecompteDépartements de Médecine, Hôpitaux Universitaires de Genève, service d'angiologie et d'hémostase et Faculté de Médecine, Geneva Platelet Group (GpG), Université de Genève, Geneva, Switzerland.
Sophie SusenUniv. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011- EGID, F-59000 Lille, France.
Charlotte CordonnierUniv Lille, Inserm, CHU Lille, U1172 - LilNCog - Lille Neuroscience & Cognition, F-59000 Lille, France.
Aurélien LebretonService d'hématologie biologique, CHU Clermont-Ferrand, Clermont-Ferrand, France.
Robert GosselinUniversity of California, Davis Health System, Thrombosis and Hemostasis Center, Sacramento, United States.
Pierre SiéUniversity Paul Sabatier, CHU of Toulouse, Laboratory of Hematology, F-31069 Toulouse, France.
Gilles PernodCHU Grenoble Alpes, Department of Vascular Medicine, CNRS/TIMC-IMAG UMR 5525/Themas, Grenoble, France.
Yves GruelUniversity of Tours, EA7501 GICC, CHRU de Tours, Department of Haemostasis, Tours, France.
Philippe NguyenUniversité de Reims, EA3801, CHU de Reims, France.
Caroline VayneUniversity of Tours, EA7501 GICC, CHRU de Tours, Department of Haemostasis, Tours, France.
François MullierCHU UCL Namur, Université catholique de Louvain, Hematology Laboratory, Namur Research for Life Sciences, Namur Thrombosis and Hemostasis Center, Yvoir, Belgium.
University of Namur · BECentre de Recherche en Nutrition Humaine d'Auvergne · FRCentre Hospitalier Universitaire de Reims · FRCentre Hospitalier Universitaire de Tours · FRCentre National de la Recherche Scientifique · FRHôpital Beau-Séjour · CHInstitut Pasteur de Lille · FRUC Davis Health · USUCLouvain · BEUniversité de Lille · FRUniversité de Tours · FRUniversité Toulouse III - Paul Sabatier · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

As of 4 April 2021, a total of 169 cases of cerebral venous sinus thrombosis (CVST) and 53 cases of splanchnic vein thrombosis were reported to EudraVigilance among around 34 million people vaccinated in the European Economic Area and United Kingdom with COVID-19 Vaccine AstraZeneca, a chimpanzee adenoviral vector (ChAdOx1) encoding the spike protein antigen of the SARS-CoV-2 virus. The first report of the European Medicines Agency gathering data on 20 million people vaccinated with Vaxzevria® in the UK and the EEA concluded that the number of post-vaccination cases with thromboembolic events as a whole reported to EudraVigilance in relation to the number of people vaccinated was lower than the estimated rate of such events in the general population. However, the EMA's Pharmacovigilance Risk Assessment Committee concluded that unusual thromboses with low blood platelets should be listed as very rare side effects of Vaxzevria®, pointing to a possible link. The same issue was identified with the COVID-19 Vaccine Janssen (Ad26.COV2.S). Currently, there is still a sharp contrast between the clinical or experimental data reported in the literature on COVID-19 and the scarcity of data on the unusual thrombotic events observed after the vaccination with these vaccines. Different hypotheses might support these observations and should trigger further in vitro and ex vivo investigations. Specialized studies were needed to fully understand the potential relationship between vaccination and possible risk factors in order to implement risk minimization strategies.

Indexed as

COVID-19ThrombocytopeniaThrombosisCOVID-19 VaccinesHumansSARS-CoV-2United KingdomVaccinationCOVID-19 VaccinesAd.26.COV2.SAZD1222Cerebral venous sinus thrombosisChAdOx1 nCov-19COVID-19COVID-19 Janssen vaccineThrombosisVaccines

Identifiers

PMID34029848
PMCPMC8123522
OpenAlexW3160378883

What OpenQuestion holds

Textmetadata
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Registered trials

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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.