Evidence map›Paper›PMID 38804282›Full record

ArticleHematology reports2024

Anti-PF4 ELISA-Negative, SRA-Positive Heparin-Induced Thrombocytopenia.

Abraham Attah, Chelsea Peterson, Max Jacobs, Rama Bhagavatula, Deep Shah, Robert Kaplan, Yazan Samhouri

Abstract readCase Reports
In one paragraph

Article in Hematology reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Pathogenic PF4/Polyvinylsulfonate ELISA-negative Antibodies in HIT.medRxiv : the preprint server for health sciences · 2025
    Article
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

7 authors.

Abraham AttahDepartment of Internal Medicine, Allegheny Health Network, Pittsburgh, PA 15212, USA.
Chelsea PetersonDivision of Hematology and Cellular Therapy, Allegheny Health Network Cancer Institute, Pittsburgh, PA 15212, USA.
Max JacobsDepartment of Internal Medicine, Allegheny Health Network, Pittsburgh, PA 15212, USA.ORCID 0000-0002-4447-1491
Rama BhagavatulaDivision of Hematology and Cellular Therapy, Allegheny Health Network Cancer Institute, Pittsburgh, PA 15212, USA.
Deep ShahDivision of Hematology and Cellular Therapy, Allegheny Health Network Cancer Institute, Pittsburgh, PA 15212, USA.
Robert KaplanDivision of Hematology and Cellular Therapy, Allegheny Health Network Cancer Institute, Pittsburgh, PA 15212, USA.
Yazan SamhouriDivision of Hematology and Cellular Therapy, Allegheny Health Network Cancer Institute, Pittsburgh, PA 15212, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Heparin products are frequently used in the inpatient setting to prevent and treat venous thromboembolism, but they simultaneously put patients at risk of developing heparin-induced thrombocytopenia (HIT). The 4Ts score determines the pretest probability of HIT. Diagnosis is made with a screening antiplatelet factor (PF4) immunoassay and the serotonin-release assay (SRA) as a confirmatory test. Anti-PF4 assays have high sensitivity (98%) but lower specificity (50%) and result in frequent false-positive tests. We present a rare case from our institution of a patient with anti-PF4-Polyanion ELISA-negative, SRA-positive HIT and describe the challenges in making a timely diagnosis in this case.

Indexed as

anti-PF4heparin-induced thrombocytopeniaserotonin-release assayvenous thromboembolism

Identifiers

PMID38804282
PMCPMC11130879

What Socratic holds

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LicenceCC BY
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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 Socratic graph.