Evidence map›Paper›PMID 32833259›Full record

ArticleAmerican journal of hematology2020

Marked factor V activity elevation in severe COVID-19 is associated with venous thromboembolism.

Jonathan A Stefely, Bianca B Christensen, Tasos Gogakos, Jensyn K Cone Sullivan, Gabriella G Montgomery, John P Barranco, Elizabeth M Van Cott

Open access · bronzeAbstract read
In one paragraph

Article in American journal of hematology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed, 2 pooled it
1.9field-weighted citation impact, top 8% 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

53 citing papers in PubMed, 2 syntheses or guidelines pooled it, 90 citations in OpenAlex.

  1. Genome-Wide Search for Nonadditive Allele Effects IdentifiesJournal of the American Heart Association · 2024
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  14. Shedding Light on the Pathogenesis of Splanchnic Vein Thrombosis.International journal of molecular sciences · 2023
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Jonathan A StefelyDepartment of Pathology, Coagulation Laboratory, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts.ORCID 0000-0003-3235-1107
Bianca B ChristensenDepartment of Pathology, Coagulation Laboratory, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts.
Tasos GogakosDepartment of Pathology, Coagulation Laboratory, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts.
Jensyn K Cone SullivanDepartment of Pathology, Coagulation Laboratory, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts.
Gabriella G MontgomeryDepartment of Pathology, Coagulation Laboratory, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts.
John P BarrancoDepartment of Pathology, Coagulation Laboratory, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts.
Elizabeth M Van CottDepartment of Pathology, Coagulation Laboratory, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts.
Harvard University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Coagulopathy causes morbidity and mortality in patients with coronavirus disease 2019 (COVID-19) due to severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection. Yet, the mechanisms are unclear and biomarkers are limited. Early in the pandemic, we observed markedly elevated factor V activity in a patient with COVID-19, which led us to measure factor V, VIII, and X activity in a cohort of 102 consecutive inpatients with COVID-19. Contemporaneous SARS-CoV-2-negative controls (n = 17) and historical pre-pandemic controls (n = 260-478) were also analyzed. This cohort represents severe COVID-19 with high rates of ventilator use (92%), line clots (47%), deep vein thrombosis or pulmonary embolism (DVT/PE) (23%), and mortality (22%). Factor V activity was significantly elevated in COVID-19 (median 150 IU/dL, range 34-248 IU/dL) compared to contemporaneous controls (median 105 IU/dL, range 22-161 IU/dL) (P < .001)-the strongest association with COVID-19 of any parameter studied, including factor VIII, fibrinogen, and D-dimer. Patients with COVID-19 and factor V activity >150 IU/dL exhibited significantly higher rates of DVT/PE (16/49, 33%) compared to those with factor V activity ≤150 IU/dL (7/53, 13%) (P = .03). Within this severe COVID-19 cohort, factor V activity associated with SARS-CoV-2 load in a sex-dependent manner. Subsequent decreases in factor V were linked to progression toward DIC and mortality. Together, these data reveal marked perturbations of factor V activity in severe COVID-19, provide links to SARS-CoV-2 disease biology and clinical outcomes, and nominate a candidate biomarker to investigate for guiding anticoagulation therapy in COVID-19.

Indexed as

SARS-CoV-2AdultAgedAged, 80 and overCohort StudiesCOVID-19Disseminated Intravascular CoagulationExtracorporeal Membrane OxygenationFactor VFemaleHumansMaleMiddle AgedProspective StudiesPulmonary EmbolismRespiration, ArtificialFactor V

Identifiers

PMID32833259
PMCPMC7461432
OpenAlexW3080948832

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.