Evidence map›Paper›PMID 31803005›Full record

SynthesisFrontiers in neuroscience2019

Transcranial Direct Current Stimulation to Improve the Dysfunction of Descending Pain Modulatory System Related to Opioids in Chronic Non-cancer Pain: An Integrative Review of Neurobiology and Meta-Analysis.

Maxciel Zortea, Leticia Ramalho, Rael Lopes Alves, Camila Fernanda da Silveira Alves, Gilberto Braulio, Iraci Lucena da Silva Torres, Felipe Fregni, Wolnei Caumo

Registry-linked trialOpen access · goldAbstract readSystematic Review
In one paragraph

Synthesis in Frontiers in neuroscience, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05099406 (Brain and Pain), which is not on this map. Cited by 33 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 4 pooled it
2.6field-weighted citation impact, top 10% 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.

NCT05099406 naunknown statusnot on this mapstarted 2022, after this paper: background citation

Brain and Pain (BaP): Understanding the Central Mechanisms of Pain to Improve Management of Patients With Refractory Chronic Pain

TypeinterventionalSponsorUniversity of Santiago de CompostelaRan2022 to 2023Enrolled120ConditionsChronic PainArmsTranscranial electrical stimulation
3 · Its place in the literature

Who cites it

33 citing papers in PubMed, 4 syntheses or guidelines pooled it, 57 citations in OpenAlex.

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  16. Therapeutic approach to fibromyalgia: a consensus statement on pharmacological and non-pharmacological treatment from the neuropathic pain special interest group of the Italian neurological society.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025
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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 3 institutions in 2 countries.

Maxciel ZorteaPost-graduation Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande Do Sul (UFRGS), Porto Alegre, Brazil.
Leticia RamalhoPost-graduation Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande Do Sul (UFRGS), Porto Alegre, Brazil.
Rael Lopes AlvesPost-graduation Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande Do Sul (UFRGS), Porto Alegre, Brazil.
Camila Fernanda da Silveira AlvesPost-graduation Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande Do Sul (UFRGS), Porto Alegre, Brazil.
Gilberto BraulioLaboratory of Pain & Neuromodulation, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, Brazil.
Iraci Lucena da Silva TorresDepartment of Pharmacology, Institute of Health Sciences (ICBS), Universidade Federal do Rio Grande Do Sul (UFRGS), Porto Alegre, Brazil.
Felipe FregniNeuromodulation Center, Spaulding Rehabilitation Hospital, Harvard Medical School, Boston, MA, United States.
Wolnei CaumoPost-graduation Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande Do Sul (UFRGS), Porto Alegre, Brazil.
Universidade Federal do Rio Grande do Sul · BRHarvard University · USHospital de Clínicas de Porto Alegre · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Indexed as

descending pain inhibitory systemhyperalgesiaopioidpaintDCS

Identifiers

PMID31803005
PMCPMC6876542
OpenAlexW2987485488

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.