Evidence map›Paper›PMID 31254096›Full record

ArticleEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2019

Alpha-phase synchrony EEG training for multi-resistant chronic low back pain patients: an open-label pilot study.

Louis Mayaud, Hélène Wu, Quentin Barthélemy, Patrick Favennec, Yannick Delpierre, Marco Congedo, Arnaud Dupeyron, Michel Ritz

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In one paragraph

Article in European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
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.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Louis MayaudMensia Technologies SA, 130, rue de Lourmel, Paris, France.
Hélène WuCovea, Paris, France.
Quentin BarthélemyMensia Technologies SA, 130, rue de Lourmel, Paris, France. q.barthelemy@gmail.com.ORCID http://orcid.org/0000-0002-7059-6028
Patrick FavennecCovea, Paris, France.
Yannick DelpierreCentre de l'Arche, Le Mans, France.
Marco CongedoGIPSA-Lab, Grenoble, France.
Arnaud DupeyronHôpital Universitaire de Nîmes, Nîmes, France.
Michel RitzCentre de l'Arche, Le Mans, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeChronic low back pain (cLBP) affects a quarter of a population during its lifetime. The most severe cases include patients not responding to interventions such as 5-week-long in-hospital multi-disciplinary protocols. This document reports on a pilot study offering an alpha-phase synchronization (APS) brain rehabilitation intervention to a population of n = 16 multi-resistant cLBP patients.

methodsThe intervention consists of 20 sessions of highly controlled electroencephalography (EEG) APS operant conditioning (neurofeedback) paradigm delivered in the form of visual feedback. Visual analogue scale for pain, Dallas, Hamilton, and HAD were measured before, after, at 6-month and 12-month follow-up. Full-scalp EEG data were analyzed to study significant changes in the brain's electrical activity.

resultsThe intervention showed a great and lasting response of most measured clinical scales. The clinical improvement was lasting beyond the 6-month follow-up endpoints. The EEG data confirm that patients did control (intra-session trends) and learned to better control (intersession trends) their APS neuromarker resulting in (nonsignificant) baseline changes in their resting state activity. Last and most significantly, the alpha-phase concentration (APC) neuromarker, specific to phase rather than amplitude, was found to correlate significantly with the reduction in clinical symptoms in a typical dose-response effect.

conclusionThis first experiment highlights the role of the APC neuromarker in relation to the nucleus accumbens activity and its role on nociception and the chronicity of pain. This study suggests APC rehabilitation could be used clinically for the most severe cases of cLBP. Its excellent safety profile and availability as a home-use intervention makes it a potentially disruptive tool in the context of nonsteroidal anti-inflammatory drugs and opioid abuses. These slides can be retrieved under Electronic Supplementary Material.

Indexed as

ElectroencephalographyAdolescentAdultChronic PainConditioning, OperantFemaleHumansLow Back PainMiddle AgedNeurofeedbackPilot ProjectsVisual Analog ScaleYoung AdultAlpha-phase concentrationAlpha-phase synchronizationChronic low back painElectroencephalographNeurofeedbackNucleus accumbens

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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.