Evidence map›Paper›PMID 24423479›Full record

ArticleJournal of vascular surgery2014

Walking disability in patients with peripheral artery disease is associated with arterial endothelial function.

S Marlene Grenon, Karen Chong, Hugh Alley, Emily Nosova, Warren Gasper, Jade Hiramoto, W John Boscardin, Christopher D Owens

Abstract read
In one paragraph

Article in Journal of vascular surgery, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
5.3field-weighted citation impact, top 4% 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

19 citing papers in PubMed, 57 citations in OpenAlex.

  1. A Doppler Ultrasound Method to Measure Vascular Responses to Walking.bioRxiv : the preprint server for biology · 2025
    Article
  2. Article
  3. Article
  4. Review
  5. Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Physical Activity Levels in Peripheral Artery Disease Patients.Arquivos brasileiros de cardiologia · 2019
    Article
  11. Review
  12. Article
  13. Growth Hormone (GH) and Cardiovascular System.International journal of molecular sciences · 2018
    Review
  14. Imaging in Vascular Access.Cardiovascular engineering and technology · 2017
    Review
  15. Review
  16. Observational
  17. PAD in women: the ischemic continuum.Current atherosclerosis reports · 2015
    Review
  18. Review
  19. 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

8 authors at 2 institutions in 1 country.

S Marlene GrenonDepartment of Surgery, University of California San Francisco, San Francisco, Calif; Department of Surgery, Veterans Affairs Medical Center, San Francisco, Calif; VIPERx Laboratory, San Francisco, Calif. Electronic address: marlene.grenon@ucsfmedctr.org.
Karen ChongDepartment of Surgery, University of California San Francisco, San Francisco, Calif; VIPERx Laboratory, San Francisco, Calif.
Hugh AlleyDepartment of Surgery, University of California San Francisco, San Francisco, Calif; VIPERx Laboratory, San Francisco, Calif.
Emily NosovaDepartment of Surgery, University of California San Francisco, San Francisco, Calif; VIPERx Laboratory, San Francisco, Calif.
Warren GasperDepartment of Surgery, University of California San Francisco, San Francisco, Calif; Department of Surgery, Veterans Affairs Medical Center, San Francisco, Calif; VIPERx Laboratory, San Francisco, Calif.
Jade HiramotoDepartment of Surgery, University of California San Francisco, San Francisco, Calif.
W John BoscardinDepartment of Biostatistics and Epidemiology, University of California San Francisco, San Francisco, Calif; Department of Medicine, University of California San Francisco, San Francisco, Calif.
Christopher D OwensDepartment of Surgery, University of California San Francisco, San Francisco, Calif; Department of Surgery, Veterans Affairs Medical Center, San Francisco, Calif; VIPERx Laboratory, San Francisco, Calif.
University of California, San Francisco · USSan Francisco VA Medical Center · US

Funding

Engaging University of California Stakeholders for Biorespository ResearchUL1TR000004 · NCATS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI GRANDIS, JENNIFER RUBIN · 2012 to 2015
$78.0M
VARC CoreP30AG044281 · NIA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI KENNETH E. COVINSKY · 2013 to 2026
$19.9M
CTSA: K12 COMPONENTKL2RR024130 · NCRR · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI JOHNSTON, S. CLAIBORNE · 2006 to 2011
$19.3M
Clinical and Transtional Science InstituteKL2TR000143 · NCATS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI GRANDIS, JENNIFER RUBIN · 2012 to 2015
$11.9M
NCATS NIH HHS KL2 TR000143NCATS NIH HHS UL1 TR000004NCRR NIH HHS KL2 RR024130NCRR NIH HHS KL2RR024130NIA NIH HHS P30 AG044281
6 · The paper itself

Abstract

objectivePatients with peripheral artery disease (PAD) have varying degrees of walking disability that do not completely correlate with ankle-brachial index (ABI) or angiographic anatomy. We hypothesized that endothelial function (EF) is an independent predictor of symptom severity in PAD patients.

methodsThis was a cross-sectional study of 100 PAD patients presenting to a vascular surgery clinic. All patients received ABI testing and brachial artery flow-mediated, endothelium-dependent vasodilation (FMD) to assess arterial EF. Symptom severity and walking disability reported by Rutherford category was based on the patient's self-report during the clinic visit and recorded by the investigator-vascular surgeons. Demographic, biochemical, and physiologic parameters were entered into regression equations to determine association with symptom severity.

resultsPatients were a mean age of 66 ± 8 years, and 43% had diabetes. Mean FMD was 7.4%, indicating impaired EF. EF progressively declined as Rutherford category increased (P = .01). Brachial artery FMD, ABI, systolic blood pressure, C-reactive protein, low-density lipoprotein, high-density lipoprotein, β-blocker use, and a history of diabetes or coronary artery disease were all associated with Rutherford category (all P < .05). Multivariable regression showed EF (P < .02) and ABI (P < .0001) were independently associated with walking disability. When the cohort was restricted to claudicant patients (n = 73), EF remained associated with walking disability after adjustment for other covariates (P = .0001).

conclusionsSymptom severity in PAD is multifactorial, reflecting impaired hemodynamics and vascular dysfunction. This is the first report demonstrating that walking disability in PAD is associated with arterial EF. The mechanistic link underlying these observations remains to be defined.

Indexed as

Disability EvaluationVasodilationWalkingAgedAnkle Brachial IndexArterial PressureBiomarkersBrachial ArteryCase-Control StudiesChi-Square DistributionCholesterol, HDLCholesterol, LDLC-Reactive ProteinCross-Sectional StudiesEndothelium, VascularFemaleBiomarkersCholesterol, HDLCholesterol, LDLC-Reactive Protein

Identifiers

PMID24423479
PMCPMC3966931
OpenAlexW1985410641

What OpenQuestion holds

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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.