Evidence map›Paper›PMID 38447552›Full record

ArticleJournal of vascular research2024

Relationship of Warfarin and Apixaban with Vascular Function in Patients with Atrial Fibrillation.

Rehan T Junejo, Dhiraj Gupta, Richard L Snowdon, Gregory Y H Lip, James P Fisher

Open access · hybridAbstract read
In one paragraph

Article in Journal of vascular research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

6 citing papers in PubMed, 5 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Hypertension Exacerbates Endothelial Dysfunction in Patients With Atrial Fibrillation.Journal of clinical hypertension (Greenwich, Conn.) · 2025
    Article
  6. 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 4 institutions in 2 countries.

Rehan T JunejoDepartment of Life Sciences, Faculty of Science and Engineering, Manchester Metropolitan University, Manchester, UK, R.JUNEJO@MMU.AC.UK.
Dhiraj GuptaLiverpool Centre for Cardiovascular Science, University of Liverpool, Liverpool, UK.
Richard L SnowdonDepartment of Cardiology, Liverpool Heart and Chest Hospital, Liverpool, UK.
Gregory Y H LipLiverpool Centre for Cardiovascular Science, University of Liverpool, Liverpool, UK.
James P FisherDepartment of Physiology, Faculty of Medical and Health Sciences, Manaaki Manawa - The Centre for Heart Research, University of Auckland, Auckland, New Zealand.
Liverpool Heart and Chest Hospital · GBManchester Metropolitan University · GBUniversity of Auckland · NZUniversity of Liverpool · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionAtrial fibrillation (AF) is associated with endothelial damage/dysfunction. Herein, we tested the hypothesis that brachial artery flow-mediated dilation (FMD) is superior in AF patients taking apixaban compared to warfarin.

methodsAF patients on apixaban (n = 46; 67 [7] years; mean [standard deviation]; 15 women) and warfarin (n = 27; 73 [9] years (p < 0.01); 11 women) were recruited. Duplex Doppler ultrasound imaging was undertaken during baseline (2 min), cuff inflation (5 min), and following cuff deflation (3 min). FMD was defined as peak increase in brachial artery diameter following cuff deflation and analysed as percentage change in diameter, as a ratio of FMD, shear rate area under the curve (SRAUC; FMD-to-SRAUC), and using SRAUC as a covariate (FMDSR).

resultsBaseline artery diameter (4.96 [1.14] vs. 4.89 [0.88] mm), peak diameter (5.12 [1.17] vs. 5.14 [0.93] mm), and FMDSR (3.89 [3.62] vs. 4.80 [3.60] %) were not different between warfarin and apixaban (p > 0.05; analysis of covariance with age, CHA2DS2-VASc, years since AF diagnosis, number of diabetics, alcohol drinkers, and units of alcohol consumed per week as covariates). Stepwise multiple regression identified independent association of fibrillation, hypertension, and increased age with FMD.

conclusionAF patients on warfarin and apixaban exhibit similar endothelium-dependent vasodilation. Increased blood pressure negatively impacts vasodilator capacity in AF patients.

Indexed as

Atrial FibrillationWarfarinChild, PreschoolFemaleHumansPyrazolesPyridonesapixabanPyrazolesPyridonesWarfarinApixabanAtrial fibrillationFlow-mediated dilatationShear stressWarfarin

Identifiers

PMID38447552
PMCPMC10997243
OpenAlexW4392501673

What OpenQuestion holds

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LicenceCC BY-NC
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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 OpenQuestion graph.