Evidence map›Paper›PMID 33628555›Full record

ArticleCase reports in otolaryngology2021

A Case of Epistaxis as the First Sign of Acute Idiopathic Thrombocytopenic Purpura.

Shori Tajima, Fumihiko Matsumoto, Takashi Anzai, Satoshi Hara, Yo Suzuki, Katsuhisa Ikeda

Erratum issuedAbstract readCase Reports
In one paragraph

Article in Case reports in otolaryngology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Severe Postoperative Epistaxis Revealing Immune Thrombocytopenia: A Case Report.Journal of rhinology : official journal of the Korean Rhinologic Society · 2026
    Article
  2. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Shori TajimaDepartment of Otorhinolaryngology, Juntendo University Faculty of Medicine, Tokyo 113-8421, Japan.ORCID https://orcid.org/0000-0002-8840-9884
Fumihiko MatsumotoDepartment of Otorhinolaryngology, Juntendo University Faculty of Medicine, Tokyo 113-8421, Japan.
Takashi AnzaiDepartment of Otorhinolaryngology, Juntendo University Faculty of Medicine, Tokyo 113-8421, Japan.
Satoshi HaraDepartment of Otorhinolaryngology, Juntendo University Faculty of Medicine, Tokyo 113-8421, Japan.
Yo SuzukiDepartment of Otorhinolaryngology, Juntendo University Faculty of Medicine, Tokyo 113-8421, Japan.
Katsuhisa IkedaDepartment of Otorhinolaryngology, Juntendo University Faculty of Medicine, Tokyo 113-8421, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Idiopathic thrombocytopenic purpura (ITP) is an acquired thrombocytopenia caused by the action of autoantibodies against platelet antigens. It is traditionally defined by a platelet count of less than 10 × 10

Identifiers

PMID33628555
PMCPMC7884150

What OpenQuestion holds

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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.