Evidence map›Paper›PMID 40350438›Full record

ArticleThrombosis journal2025

D-dimer to fibrinogen ratio as a marker for acute cerebral venous thrombosis.

Minh-Hoang Tran, Kim-Huong Truong-Nguyen

Abstract readLetterComment
In one paragraph

Article in Thrombosis journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. 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. Article
  2. Predictive Value of D-Dimer to Fibrinogen Ratio for Unfavorable Outcomes in Acute Ischemic Stroke Patients Undergoing Intravenous Thrombolysis.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors.

Minh-Hoang TranNTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam. tmhoang@ntt.edu.vn.
Kim-Huong Truong-NguyenDepartment of Pharmacy, Nhan Dan Gia Dinh Hospital, Ho Chi Minh City, Vietnam.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Despite D-dimer to fibrinogen ratio (DFR) being reported as a prognostic factor for cerebral venous thrombosis (CVT), we note some concerns about the misused terminology (prognostic versus predictive), potential variability in D-dimer and fibrinogen assays that may impact the reliability and utility of DFR. From the statistical aspect, its validity was not adequately ensured due to inappropriate methods (inability to address multicollinearity, confounding, and multiple comparisons) and lack of validation for unvalidated discrimination cut-offs. The prognostic value of DFR was not clinically or statistically justified, given its poor-to-acceptable discrimination. Finally, an unexpectedly positive association between venous cerebral infarction and non-severe CVT suggests possible issues in data labelling, reference value, uncontrolled confounders/biases, or overadjustment. Addressing these issues would strengthen the reliability, validity, and utility of DFR in CVT prognosis.

Indexed as

Cerebral venous thrombosisD-dimerFibrinogenVenous thromboembolism

Identifiers

PMID40350438
PMCPMC12067715

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.