Evidence map›Paper›PMID 36574172›Full record

ReviewInternational journal of hematology2023

Unique features of vaccine-induced immune thrombotic thrombocytopenia; a new anti-platelet factor 4 antibody-mediated disorder.

Laura M Venier, Bianca Clerici, Anna-Lise Bissola, Dimpy Modi, Stefan D Jevtic, Michael Radford, Syed Mahamad, Ishac Nazy, Donald M Arnold

Open access · bronzeAbstract readReview
In one paragraph

Review in International journal of hematology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.5field-weighted citation impact, top 17% 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

5 citing papers in PubMed, 8 citations in OpenAlex.

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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

9 authors at 3 institutions in 2 countries.

Laura M VenierFaculty of Health Sciences, McMaster University, Hamilton, ON, Canada.ORCID http://orcid.org/0000-0002-0009-7418
Bianca ClericiDivisione di Medicina Generale II, ASST Santi Paolo e Carlo, Dipartimento di Scienze della Salute, Università degli Studi di Milano, Milan, Italy.ORCID http://orcid.org/0000-0001-7733-4584
Anna-Lise BissolaDepartment of Medicine, Michael G. DeGroote School of Medicine, Hamilton, ON, Canada.ORCID http://orcid.org/0000-0002-8040-8473
Dimpy ModiMcMaster Centre for Transfusion Research, McMaster University, 1280 Main Street West, Room HSC 3H50, Hamilton, ON, L8S 4K1, Canada.ORCID http://orcid.org/0000-0002-5879-4179
Stefan D JevticDepartment of Medicine, Michael G. DeGroote School of Medicine, Hamilton, ON, Canada.ORCID http://orcid.org/0000-0002-0806-9833
Michael RadfordDepartment of Medicine, Michael G. DeGroote School of Medicine, Hamilton, ON, Canada.ORCID http://orcid.org/0000-0001-9562-2029
Syed MahamadMcMaster Centre for Transfusion Research, McMaster University, 1280 Main Street West, Room HSC 3H50, Hamilton, ON, L8S 4K1, Canada.ORCID http://orcid.org/0000-0002-3496-4591
Ishac NazyDepartment of Medicine, Michael G. DeGroote School of Medicine, Hamilton, ON, Canada.ORCID http://orcid.org/0000-0002-5695-4343
Donald M ArnoldDepartment of Medicine, Michael G. DeGroote School of Medicine, Hamilton, ON, Canada. arnold@mcmaster.ca.ORCID http://orcid.org/0000-0003-0943-8853
Hamilton Health Sciences · CAMcMaster University · CAUniversity of Milan · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Vaccine-induced immune thrombotic thrombocytopenia (VITT) is a highly prothrombotic disorder caused by anti-PF4 antibodies that activate platelets and neutrophils, leading to thrombosis. Heparin-induced thrombocytopenia (HIT) is a related anti-PF4 mediated disorder, with similar pathophysiology and clinical manifestations but different triggers (i.e., heparin vs adenoviral vector vaccine). Clinically, both HIT and VITT typically present with thrombocytopenia and thrombosis, although the risk of thrombosis is significantly higher in VITT, and the thromboses occur in unusual anatomical sites (e.g., cerebral venous sinus thrombosis and hepatic vein thrombosis). The diagnostic accuracy of available laboratory testing differs between HIT and VITT; for VITT, ELISAs have better specificity compared to HIT and platelet activation assays require the addition of PF4. Treatment of VITT and HIT is anticoagulation non-heparin anticoagulants; however, heparin may be considered for VITT if no other option is available.

Indexed as

Purpura, Thrombocytopenic, IdiopathicThrombocytopeniaThrombosisVaccinesAnticoagulantsHeparinHumansImmunologic FactorsPlatelet Factor 4AnticoagulantsHeparinImmunologic FactorsPF4 protein, humanPlatelet Factor 4VaccinesPF4ThrombocytopeniaThrombosisVITT

Identifiers

PMID36574172
PMCPMC9793819
OpenAlexW4313257294

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.