Evidence map›Paper›PMID 27334244›Full record

ArticleHypertension research : official journal of the Japanese Society of Hypertension2016

Influence of the central-to-peripheral arterial stiffness gradient on the timing and amplitude of wave reflections.

Stacey S Hickson, Wilmer W Nichols, Yasmin, Barry J McDonnell, John R Cockcroft, Ian B Wilkinson, Carmel M McEniery

Open access · bronzeAbstract read
In one paragraph

Article in Hypertension research : official journal of the Japanese Society of Hypertension, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
3.1field-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

23 citing papers in PubMed, 36 citations in OpenAlex.

  1. Trial
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  12. Backward in Coming Forward.American journal of hypertension · 2019
    Article
  13. Article
  14. Central hemodynamics and left ventricular hypertrophy in chronic kidney disease.Hypertension research : official journal of the Japanese Society of Hypertension · 2018
    Article
  15. Article
  16. Reliability of pulse waveform separation analysis responses to an orthostatic challenge.Hypertension research : official journal of the Japanese Society of Hypertension · 2018
    Article
  17. Ejection time: influence of hemodynamics and site of measurement in the arterial tree.Hypertension research : official journal of the Japanese Society of Hypertension · 2017
    Observational
  18. Article
  19. What is important for aging-induced arterial stiffening, autonomic dysfunction, vascular characteristics or both?Hypertension research : official journal of the Japanese Society of Hypertension · 2017
    Article
  20. 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

7 authors at 2 institutions in 2 countries.

Stacey S HicksonDivision of Experimental Medicine and Immunotherapeutics, Department of Medicine, University of Cambridge, Cambridge, UK.
Wilmer W NicholsDivision of Cardiovascular Medicine, Department of Medicine, University of Florida, Gainesville, FL, USA.
YasminDivision of Experimental Medicine and Immunotherapeutics, Department of Medicine, University of Cambridge, Cambridge, UK.
Barry J McDonnellDepartment of Biomedical Sciences, School of Health Sciences, Cardiff Metropolitan University, Cardiff, UK.
John R CockcroftDepartment of Cardiology, Wales Heart Research Institute, Cardiff University, Cardiff, UK.
Ian B WilkinsonDivision of Experimental Medicine and Immunotherapeutics, Department of Medicine, University of Cambridge, Cambridge, UK.
Carmel M McEnieryDivision of Experimental Medicine and Immunotherapeutics, Department of Medicine, University of Cambridge, Cambridge, UK.
University of Cambridge · GBCardiff University · GB

Funding

British Heart Foundation FS/07/001/21990British Heart Foundation FS/12/8/29377
6 · The paper itself

Abstract

In individuals with compliant aortas, peripheral muscular artery stiffness exceeds central elastic artery stiffness. With aging, central stiffness increases with little change in peripheral stiffness, resulting in a reversal of the normal stiffness gradient. This reversal may reduce the wave reflection amplitude due to the movement of the major 'effective' reflection site further from the heart. To test this phenomenon, we investigated the relationship among arterial stiffness gradients (normal and reversed), wave reflection amplitude and reflection site distance. Subjects aged ⩾50 years were recruited from the Anglo-Cardiff Collaborative Trial. Central stiffness was assessed by carotid-femoral pulse wave velocity (cfPWV). In Study 1, peripheral PWV was also measured in the arm (carotid-radial pulse wave velocity) and, in Study 2, in the leg (femoral-dorsalis pedis). Reflection site distance was calculated from cfPWV and the reflected wave Tr. Subjects were dichotomized into those with a normal stiffness gradient (peripheral >central PWV) or a reversed gradient (peripheral <central PWV). In Study 1, the reflection site distance was greater in subjects with a reversed gradient (P<0.01), whereas time-to-reflection was lower (P<0.001). Both the augmentation pressure (P<0.001) and augmentation index (P<0.05) were greater in subjects with a reversed gradient. In Study 2, the augmentation pressure, augmentation index and reflection site distance were greater in subjects with a reversed stiffness gradient (P<0.01, P<0.05 and P<0.01, respectively), and time-to-reflection was not different between groups. A reversed arterial stiffness gradient is associated with an increased reflection site distance, and a paradoxical increase in reflected wave amplitude and augmentation index.

Indexed as

AgedAortaArmBlood PressureCarotid ArteriesFemaleFemoral ArteryHumansLegMaleMiddle AgedPulsatile FlowPulse Wave AnalysisVascular Stiffness

Identifiers

PMID27334244
PMCPMC5045714
OpenAlexW2444368742

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.