Evidence map›Paper›PMID 33877737›Full record

ArticleJournal of thrombosis and haemostasis : JTH2021

Thrombocytopenia with acute ischemic stroke and bleeding in a patient newly vaccinated with an adenoviral vector-based COVID-19 vaccine.

Rolf Ankerlund Blauenfeldt, Søren Risom Kristensen, Siw Leiknes Ernstsen, Claudia Christina Hilt Kristensen, Claus Ziegler Simonsen, Anne-Mette Hvas

Open access · bronzeAbstract readCase Reports
In one paragraph

Article in Journal of thrombosis and haemostasis : JTH, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 89 papers, 11 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
89citing papers in PubMed, 11 pooled it
26.1field-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

89 citing papers in PubMed, 11 syntheses or guidelines pooled it, 126 citations in OpenAlex.

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  11. Thrombosis with Thrombocytopenia Syndrome After Administration of AZD1222 or Ad26.COV2.S Vaccine for COVID-19: A Systematic Review.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
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  15. COVID-19 vaccine-induced immune thrombotic thrombocytopenia: a review.Clinical and experimental vaccine research · 2023
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  18. Neurological Adverse Reactions to SARS-CoV-2 Vaccines.Clinical psychopharmacology and neuroscience : the official scientific journal of the Korean College of Neuropsychopharmacology · 2023
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  19. Ocular motility disorders following coronavirus disease-19 vaccination.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2023
    Article
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29 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 4 institutions in 2 countries.

Rolf Ankerlund BlauenfeldtDepartment of Neurology, Aalborg University Hospital, Aalborg, Denmark.ORCID 0000-0002-4846-9516
Søren Risom KristensenDepartment of Clinical Biochemistry, Aalborg University Hospital, Aalborg, Denmark.ORCID 0000-0002-2649-506X
Siw Leiknes ErnstsenNorwegian National Unit of platelet immunology, University Hospital of North Norway, Tromsø, Norway.
Claudia Christina Hilt KristensenDepartment of Neurology, Aalborg University Hospital, Aalborg, Denmark.ORCID 0000-0002-8720-8810
Claus Ziegler SimonsenDepartment of Clinical Medicine, Aarhus University, Aarhus, Denmark.ORCID 0000-0003-1363-0266
Anne-Mette HvasDepartment of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark.ORCID 0000-0002-7136-7534
Aalborg University Hospital · DKAarhus University · DKAarhus University Hospital · DKUniversity Hospital of North Norway · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We describe the first Danish case of presumed inflammatory and thrombotic response to vaccination with an adenoviral (ChAdOx1) vector-based COVID-19 vaccine (AZD1222). The case describes a 60-year-old woman who was admitted with intractable abdominal pain 7 days after receiving the vaccine. Computed tomography of the abdomen revealed bilateral adrenal hemorrhages. On the following day, she developed a massive right-sided ischemic stroke and magnetic resonance imaging angiography showed occlusion of the right internal carotid artery. The ischemic area was deemed too large to offer reperfusion therapy. During admission, blood tests showed a remarkable drop in platelet counts from 118,000 to 5000 per μl and a substantial increase in D-dimer. The patient died on the sixth day of hospitalization. Blood tests revealed platelet factor 4 reactive antibodies, imitating what is seen in heparin-induced thrombocytopenia. This may be a novel immune-mediated response to the vaccine.

Indexed as

Brain IschemiaCOVID-19Ischemic StrokeStrokeThrombocytopeniaVaccinesChAdOx1 nCoV-19COVID-19 VaccinesFemaleHemorrhageHumansMiddle AgedSARS-CoV-2ChAdOx1 nCoV-19COVID-19 VaccinesVaccineshemorrhageplatelet factorstrokethrombocytopeniavaccines

Identifiers

PMID33877737
PMCPMC8250306
OpenAlexW3152673061

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.