Evidence map›Paper›PMID 23620742›Full record

Trial reportPloS one2013

Reproducibility of non-invasive assessment of skin endothelial function using laser Doppler flowmetry and laser speckle contrast imaging.

Cyril Puissant, Pierre Abraham, Sylvain Durand, Anne Humeau-Heurtier, Sébastien Faure, Georges Lefthériotis, Pascal Rousseau, Guillaume Mahé

Registry-linked trialOpen access · goldAbstract readClinical Trial
In one paragraph

Trial report in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01664572 (Methodological Issues of Laser Speckle Contrast Imaging for Studying Microcirculation.), which is not on this map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
5.8field-weighted citation impact, top 3% 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.

NCT01664572 completednot on this map

Methodological Issues of Laser Speckle Contrast Imaging for Studying Microcirculation.

TypeobservationalSponsorUniversity Hospital, AngersRan2012 to 2016Enrolled75ConditionsMicrovascular Function
3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 69 citations in OpenAlex.

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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 7 institutions in 1 country.

Cyril PuissantLaboratory of Vascular Investigations, University Hospital, Angers, France.
Pierre Abraham
Sylvain Durand
Anne Humeau-Heurtier
Sébastien Faure
Georges Lefthériotis
Pascal Rousseau
Guillaume Mahé
Inserm · FRCentre National de la Recherche Scientifique · FRLaboratoire Stress Oxydant et Pathologies Métaboliques · FRLaboratoire Techniques, Territoires et Sociétés · FRLe Mans Université · FRUniversité d'Angers · FRUniversité Nantes Angers Le Mans · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEndothelial dysfunction precedes atherosclerosis. Vasodilation induced by acetylcholine (ACh) is a specific test of endothelial function. Reproducibility of laser techniques such as laser-Doppler-flowmetry (LDF) and Laser-speckle-contrast-imaging (LSCI) to detect ACh vasodilation is debated and results expressions lack standardization. We aimed to study at a 7-day interval (i) the inter-subject reproducibility, (ii) the intra-subjects reproducibility, and (iii) the effect of the results expressions over variability. METHODS AND

resultsUsing LDF and LSCI simultaneously, we performed two different ACh-iontophoresis protocols. The maximal ACh vasodilation (peak-ACh) was expressed as absolute or normalized flow or conductance values. Inter-subject reproducibility was expressed as coefficient of variation (inter-CV,%). Intra-subject reproducibility was expressed as within subject coefficients of variation (intra-CV,%), and intra-class correlation coefficients (ICC). Fifteen healthy subjects were included. The inter-subject reproducibility of peak-ACh depended upon the expression of the results and ranged from 55% to 162% for LDF and from 17% to 83% for LSCI. The intra-subject reproducibility (intra-CV/ICC) of peak-ACh was reduced when assessed with LSCI compared to LDF no matter how the results were expressed and whatever the protocol used. The highest intra-subject reproducibility was found using LSCI. It was 18.7%/0.87 for a single current stimulation (expressed as cutaneous vascular conductance) and 11.4%/0.61 for multiple current stimulations (expressed as absolute value).

conclusionACh-iontophoresis coupled with LSCI is a promising test to assess endothelial function because it is reproducible, safe, and non-invasive. N°: NCT01664572.

Indexed as

Contrast MediaAcetylcholineAdultDiagnostic ImagingEndothelium, VascularFemaleHumansIontophoresisLaser-Doppler FlowmetryMaleReproducibility of ResultsSkinVasodilationAcetylcholineContrast Media

Identifiers

PMID23620742
PMCPMC3631172
OpenAlexW2028424399

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Registered trials

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.