Evidence map›Paper›PMID 34687421›Full record

ArticleInternational journal of hematology2022

New-onset Evans syndrome associated with systemic lupus erythematosus after BNT162b2 mRNA COVID-19 vaccination.

Daisuke Hidaka, Reiki Ogasawara, Shunsuke Sugimura, Fumiaki Fujii, Keisuke Kojima, Jun Nagai, Ko Ebata, Kohei Okada, Naoki Kobayashi, Masahiro Ogasawara and 2 more

Open access · bronzeAbstract readCase Reports
In one paragraph

Article in International journal of hematology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 2 pooled it
4.8field-weighted citation impact, top 4% 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

27 citing papers in PubMed, 2 syntheses or guidelines pooled it, 40 citations in OpenAlex.

  1. Pooled it
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  9. An overview of HLA variants in COVID-19 vaccine-induced autoimmunity.International journal of molecular epidemiology and genetics · 2025
    Review
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  12. Aplastic Anemia Following COVID-19 Vaccination: A Systematic Review of Case Reports and Case Series.International journal of hematology-oncology and stem cell research · 2024
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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

12 authors at 1 institution in 1 country.

Daisuke HidakaDepartment of Hematology, Sapporo Hokuyu Hospital, Higashi Sapporo 6-6, Shiroishi-ku, Sapporo, 0030006, Japan. daisuperstition19@yahoo.co.jp.
Reiki OgasawaraDepartment of Hematology, Sapporo Hokuyu Hospital, Higashi Sapporo 6-6, Shiroishi-ku, Sapporo, 0030006, Japan.
Shunsuke SugimuraDepartment of Hematology, Sapporo Hokuyu Hospital, Higashi Sapporo 6-6, Shiroishi-ku, Sapporo, 0030006, Japan.
Fumiaki FujiiDepartment of Hematology, Sapporo Hokuyu Hospital, Higashi Sapporo 6-6, Shiroishi-ku, Sapporo, 0030006, Japan.
Keisuke KojimaDepartment of Hematology, Sapporo Hokuyu Hospital, Higashi Sapporo 6-6, Shiroishi-ku, Sapporo, 0030006, Japan.
Jun NagaiDepartment of Hematology, Sapporo Hokuyu Hospital, Higashi Sapporo 6-6, Shiroishi-ku, Sapporo, 0030006, Japan.
Ko EbataDepartment of Hematology, Sapporo Hokuyu Hospital, Higashi Sapporo 6-6, Shiroishi-ku, Sapporo, 0030006, Japan.
Kohei OkadaDepartment of Hematology, Sapporo Hokuyu Hospital, Higashi Sapporo 6-6, Shiroishi-ku, Sapporo, 0030006, Japan.
Naoki KobayashiDepartment of Hematology, Sapporo Hokuyu Hospital, Higashi Sapporo 6-6, Shiroishi-ku, Sapporo, 0030006, Japan.
Masahiro OgasawaraDepartment of Hematology, Sapporo Hokuyu Hospital, Higashi Sapporo 6-6, Shiroishi-ku, Sapporo, 0030006, Japan.
Masahiro ImamuraDepartment of Hematology, Sapporo Hokuyu Hospital, Higashi Sapporo 6-6, Shiroishi-ku, Sapporo, 0030006, Japan.
Shuichi OtaDepartment of Hematology, Sapporo Hokuyu Hospital, Higashi Sapporo 6-6, Shiroishi-ku, Sapporo, 0030006, Japan.
Sapporo Hokuyu Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Evans syndrome presents as concurrent autoimmune hemolytic anemia (AIHA) and immune thrombocytopenia (ITP). Systemic lupus erythematosus (SLE) is the most frequent autoimmune disorder associated with Evans syndrome. We herein report a case of new-onset Evans syndrome associated with SLE after BNT162b2 mRNA coronavirus disease 2019 (COVID-19) vaccination in a 53-year-old woman. Blood examination at diagnosis showed hemolytic anemia with a positive Coombs test and thrombocytopenia. Hypocomplementemia and the presence of lupus anticoagulant indicated a strong association with SLE. Prednisolone administration rapidly restored hemoglobin level and platelet count. This case suggests that mRNA COVID-19 vaccination may cause an autoimmune disorder. Physicians should be aware of this adverse reaction by mRNA COVID-19 vaccination and should consider the benefits and risks of vaccination for each recipient.

Indexed as

Anemia, Hemolytic, AutoimmuneBNT162 VaccineFemaleHematologic TestsHemoglobinsHumansLupus Erythematosus, SystemicMiddle AgedPlatelet CountPrednisolonePurpura, Thrombocytopenic, IdiopathicRisk AssessmentThrombocytopeniaVaccinationBNT162 VaccineHemoglobinsPrednisoloneAIHACOVID-19 mRNA vaccineEvans syndromeITPSLE

Identifiers

PMID34687421
PMCPMC8536917
OpenAlexW3206600449

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.