Evidence map›Paper›PMID 32998204›Full record

ArticleBrain sciences2020

Painful Cutaneous Electrical Stimulation vs. Heat Pain as Test Stimuli in Conditioned Pain Modulation.

Elena Enax-Krumova, Ann-Christin Plaga, Kimberly Schmidt, Özüm S Özgül, Lynn B Eitner, Martin Tegenthoff, Oliver Höffken

Open access · goldAbstract read
In one paragraph

Article in Brain sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.7field-weighted citation impact, top 29% 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

7 citing papers in PubMed, 15 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

7 authors at 2 institutions in 1 country.

Elena Enax-KrumovaDepartment of Neurology, Ruhr-University Bochum, Berufsgenossenschaftliches Universitätsklinikum Bergmannsheil gGmbH Bochum, 44789 Bochum, Germany.ORCID 0000-0002-6162-9414
Ann-Christin PlagaDepartment of Neurology, Ruhr-University Bochum, Berufsgenossenschaftliches Universitätsklinikum Bergmannsheil gGmbH Bochum, 44789 Bochum, Germany.
Kimberly SchmidtDepartment of Neurology, Ruhr-University Bochum, Berufsgenossenschaftliches Universitätsklinikum Bergmannsheil gGmbH Bochum, 44789 Bochum, Germany.
Özüm S ÖzgülDepartment of Neurology, Ruhr-University Bochum, Berufsgenossenschaftliches Universitätsklinikum Bergmannsheil gGmbH Bochum, 44789 Bochum, Germany.
Lynn B EitnerDepartment of Pain Medicine, Ruhr-University Bochum, Berufsgenossenschaftliches Universitätsklinikum Bergmannsheil gGmbH Bochum, 44789 Bochum, Germany.ORCID 0000-0001-7143-5114
Martin TegenthoffDepartment of Neurology, Ruhr-University Bochum, Berufsgenossenschaftliches Universitätsklinikum Bergmannsheil gGmbH Bochum, 44789 Bochum, Germany.
Oliver HöffkenDepartment of Neurology, Ruhr-University Bochum, Berufsgenossenschaftliches Universitätsklinikum Bergmannsheil gGmbH Bochum, 44789 Bochum, Germany.
BG University Hospital Bergmannsheil Bochum · DEUniversity Hospitals of the Ruhr-University of Bochum · DE

Funding

Deutsche Forschungsgemeinschaft SFB 874/A1 and A5, Project No.: 122679504Deutsche Gesetzliche Unfallversicherung Endowed professorships to E.K.E.-K. for the time of 6 years (2020-2026).
6 · The paper itself

Abstract

Different paradigms can assess the effect of conditioned pain modulation (CPM). The aim of the present study was to compare heat pain, as an often used test stimulus (TS), to painful cutaneous electrical stimulation (PCES), having the advantage of the additional recording of PCES-related evoked potentials. In 28 healthy subjects we applied heat and PCES at the dominant hand as test stimulus (TS) to compare the CPM-effect elicited by hand immersion into cold water (10 °C) as conditioning stimulus (CS). Subjects rated the pain intensity of TS at baseline, during and 5 min after CS application and additionally of CS, on a numerical rating scale (NRS) (0-100). The 'early' (during CS-before CS) and 'late' (after CS-before CS) CPM-effects were analyzed. Parallel to the PCES, the related evoked potentials were recorded via Cz to evaluate any changes in PCES-amplitudes. CS reduced significantly the pain intensity of both PCES and heat pain as TS. On a group level, the CPM-effect did not differ significantly between both paradigms. Both early and late CPM-effect based on PCES correlated significantly with the CS pain intensity (

Indexed as

conditioned pain modulationendogenous pain modulationheat painpainful cutaneous electrical stimulationpain mechanisms

Identifiers

PMID32998204
PMCPMC7599732
OpenAlexW3088850679

What OpenQuestion holds

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LicenceCC BY
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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.