Evidence map›Paper›PMID 34666770›Full record

ArticleThrombosis journal2021

A case-control study on factor V Leiden: an independent, gender-dependent risk factor for venous thromboembolism.

Vahideh Takhviji, Kazem Zibara, Asma Maleki, Ebrahim Azizi, Sanaz Hommayoun, Mohammadreza Tabatabaei, Seyed Esmaeil Ahmadi, Maral Soleymani, Omid Kiani Ghalesardi, Mina Farokhian and 4 more

Open access · goldAbstract read
In one paragraph

Article in Thrombosis journal, 2021. 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
0.7field-weighted citation impact, top 28% 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

4 citing papers in PubMed, 8 citations in OpenAlex.

  1. Article
  2. Platelets at the intersection of inflammation and coagulation in the APC-mediated response to myocardial ischemia/reperfusion injury.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2024
    Review
  3. Article
  4. 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

14 authors at 7 institutions in 2 countries.

Vahideh TakhvijiTransfusion Research center, High Institute for Research and Education in Transfusion, Tehran, Iran.
Kazem ZibaraPRASE and Biology Department, Faculty of Sciences, Lebanese University, Beirut, Lebanon.
Asma MalekiDepartment of hematology, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran.
Ebrahim AziziFaculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Sanaz HommayounTransfusion Research center, High Institute for Research and Education in Transfusion, Tehran, Iran.
Mohammadreza TabatabaeiTransfusion Research center, High Institute for Research and Education in Transfusion, Tehran, Iran.
Seyed Esmaeil AhmadiDepartment of Hematology and Blood Banking, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran.
Maral SoleymaniFaculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Omid Kiani GhalesardiDepartment of Hematology and Blood Banking, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran.
Mina FarokhianHematology Department, Tarbiat Modares University, Tehran, Iran.
Afshin DavariSchool of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Pouria ParidarIslamic Azad University, North-Tehran Branch, Tehran, Iran.
Anahita KalantariDepartment of Anesthesiology, Golestan Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Abbas KhosraviTransfusion Research center, High Institute for Research and Education in Transfusion, Tehran, Iran. a-khosravi@razi.tums.ac.ir.ORCID http://orcid.org/0000-0001-5213-106X
High Institute for Education and Research in Transfusion Medicine · IRAhvaz Jundishapur University of Medical Sciences · IRIran University of Medical Sciences · IRTehran University of Medical Sciences · IRIslamic Azad University North Tehran Branch · IRLebanese University · LBTarbiat Modares University · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundActivated protein C resistance (APCR) due to factor V Leiden (FVL) mutation (R506Q) is a major risk factor in patients with venous thromboembolism (VTE). The present study investigated the clinical manifestations and the risk of venous thromboembolism regarding multiple clinical, laboratory, and demographic properties in FVL patients. MATERIAL AND

methodsA retrospective cross-sectional analysis was conducted on a total of 288 FVL patients with VTE according to APCR. In addition, 288 VET control samples, without FVL mutation, were also randomly selected. Demographic information, clinical manifestations, family and treatment history were recorded, and specific tests including t-test, chi-square and uni- and multi-variable regression tests applied.

resultsAPCR was found to be 2.3 times significantly more likely in men (OR: 2.1, p < 0.05) than women. The risk of deep vein thrombosis (DVT) and pulmonary embolism (PE) in APCR patients was 4.5 and 3.2 times more than the control group, respectively (p < 0.05). However, APCR could not be an independent risk factor for arterial thrombosis (AT) and pregnancy complications. Moreover, patients were evaluated for thrombophilia panel tests and showed significantly lower protein C and S than the control group and patients without DVT (p < 0.0001).

conclusionFVL mutation and APCR abnormality are noticeable risk factors for VTE. Screening strategies for FVL mutation in patients undergoing surgery, oral contraceptive medication, and pregnancy cannot be recommended, but a phenotypic test for activated protein C resistance should be endorsed in patients with VTE.

Indexed as

APCRArterial thrombosisDVTFactor V LeidenPEThrombophiliaVenous thromboembolism

Identifiers

PMID34666770
PMCPMC8527672
OpenAlexW3205201583

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.