Evidence map›Paper›PMID 35463779›Full record

ArticleFrontiers in cardiovascular medicine2022

Current Knowledge on Factor V Leiden Mutation as a Risk Factor for Recurrent Venous Thromboembolism: A Systematic Review and Meta-Analysis.

Daria Eppenberger, Henning Nilius, Betsy Anagnostelis, Carola A Huber, Michael Nagler

Open access · goldAbstract read
In one paragraph

Article in Frontiers in cardiovascular medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 2 pooled it
3.8field-weighted citation impact, top 6% 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

11 citing papers in PubMed, 2 syntheses or guidelines pooled it, 20 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. [Advances in the genetics of venous thromboembolic disease].Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi · 2024
    Review
  5. Factor V Leiden (R506Q), Prothrombin G20210A, and MTHFR C677T Variants and Thrombophilia in Qatar Biobank Participants: A Case Control Study.Pathophysiology : the official journal of the International Society for Pathophysiology · 2024
    Article
  6. Comparison of the ABC and ACMG systems for variant classification.European journal of human genetics : EJHG · 2024
    Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Clinical Impact of Inherited Thrombophilia in Patients With Thrombosis: Evaluating the Real Risk of FVL, PTG20210A, and MTHFR Mutations in the Kurdistan Region of Iraq.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    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

5 authors at 3 institutions in 1 country.

Daria EppenbergerDepartment of Clinical Chemistry, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
Henning NiliusDepartment of Clinical Chemistry, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
Betsy AnagnostelisMedical Library Research Support Service, University Library of Bern, University of Bern, Bern, Switzerland.
Carola A HuberDepartment of Health Sciences, Helsana Insurance Group, Zürich, Switzerland.
Michael NaglerDepartment of Clinical Chemistry, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
University Hospital of Bern · CHHelsana Group (Switzerland) · CHUniversity of Bern · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Thrombophilia screening is widely done in clinical practice, and it is claimed that the extent of venous thromboembolism (VTE) recurrence risk in patients with common defects is still not fully understood. Aim: We aimed to summarize data of all observational studies prospectively assessing the association of heterozygous factor V Leiden (FVL) mutation and recurrent VTE in patients with VTE, and to calculate pooled relative risks (RR), overall and in various subgroups. Methods: We searched MEDLINE and EMBASE databases for cohort studies prospectively assessing VTE recurrence in patients with and without FVL mutation (PROSPERO: CRD42021182800). Data were extracted on cohort and study-level. The methodological quality was assessed using the Newcastle-Ottawa Scale (NOS). RR were calculated overall and in subgroups using a random-effects model. Results: From 31 cohorts, 24 studies were finally included summarizing 13,571 patients. Heterozygous FVL mutation was identified in 2,840 individuals (21%). The methodological quality was estimated to be high in 20 studies (83%). The overall RR was 1.46 (95% CI: 1.31, 1.64), consistent across subgroups. Conclusions: Pooling all high-quality epidemiological data, the risk of recurrent VTE was increased by 46% in patients with heterozygous FVL mutation. Against the background of established risk factors, the FVL mutation plays only a marginal role in the risk assessment for recurrent VTE.

Indexed as

heterozygous factor V Leiden mutationprospective cohort studiesrecurrent venous thromboembolismrisk factorssystematic review

Identifiers

PMID35463779
PMCPMC9021545
OpenAlexW4226106127

What OpenQuestion holds

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LicenceCC BY
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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.