NCT04218448

Brief Summary

Somatosensory evoked potentials corresponds to a neurophysiological exam that studies the functioning of the sensitivity pathways. It is often complementary to the imaging examination (MRI or scanner) and the electroneuromyogram which studies only the peripheral part of the sensory and motor pathways while the somatosensory evoked potentials are interested in their central and peripheral component. The studied information are the potentials generated in the nervous system by the presentation of sensory stimulation. The examination makes it possible to study conduction times which will be defined as normal or pathological according to standards established on control subjects. Their indication is multiple: study of the repercussions of cervical osteoarthritis, specify the diagnosis of certain neuropathies, study of the conduction pathways at the medullary level in the event of trauma or inflammatory or other lesion. In our study, the investigators will only be interested in the somatosensory evoked Potentials. A study has shown that hypnotic suggestions to reduce the unpleasantness of pain triggered by thermal stimulation lead to a selective reduction of activity in the anterior cingulate cortex without modifying the activation of the somesthetic cortex. Pain is, like all sensory stimulation, subject to the influences of attention, anticipation, mental imagery, previous conditioning. The fronto-cingular areas, activated by analgesics such as morphine, or by cortical stimulation are the same as those used by non-drug techniques such as hypnosis. Therapeutic hypnosis is "a relational experience bringing into play physiological and psychological mechanisms allowing the individual to live better, reduce or eliminate an acute or chronic painful pathology" (Definition of Doctor Jean Marc Benhaiem). The study of somatosensory evoked Potentials is a long examination (90 to 120 minutes), which can be uncomfortable for the patient (patient lying down, immobile and relaxed), not having to contract his muscles, especially if he is already painful due to his pathology or if it is difficult for him to remain motionless in the supine position. It is indeed necessary to average around 600 to 1000 responses (number of averages) to a small electrical simulation on each member studied. The muscular contractions of an anxious and/or painful patient prolong the duration of the examination or even disturb the results, to the point of making it impossible to interpret the examination. To our knowledge, hypnosis has already been used to improve muscle relaxation and reduce anxiety and pain during electromyograms, but hypnosis has never been used to improve the outcome of somatosensory evoked Potentials. Furthermore, if hypnosis modifies certain late cortical waves, it does not cause modification of the early waves and therefore does not disturb the results expected in our clinical practice.

Trial Health

57
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Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
26

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jan 2020

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

December 30, 2019

Completed
7 days until next milestone

First Posted

Study publicly available on registry

January 6, 2020

Completed
7 days until next milestone

Study Start

First participant enrolled

January 13, 2020

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 16, 2023

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 6, 2023

Completed
Last Updated

April 27, 2023

Status Verified

April 1, 2023

Enrollment Period

3 years

First QC Date

December 30, 2019

Last Update Submit

April 26, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • duration of the somatosensory evoked potentials

    This correspond to the duration of the somatosensory evoked potentials exam in minuts, between the 2 groups.

    one day

Secondary Outcomes (1)

  • Quality of the somatosensory evoked potentials

    one day

Study Arms (2)

Somatosensory evoked potentials without hypnorelaxation

NO INTERVENTION

As part of this research, the patient must complete a pain scale and a Spielberger Stay-A anxiety self-assessment questionnaire before the PES examination. Somatosensory evoked potentials are carried out according to the usual management.

Somatosensory evoked potentials with hypnorelaxation

EXPERIMENTAL

As part of this research, the patient must complete a pain scale and a Spielberger Stay-A anxiety self-assessment questionnaire before the PES examination. Hypno-relaxation is induced by following VAKOG: external sensory identification, fixation of attention, bodily sensation, breathing, sensory perceptions, closing of the eyes. The work phase follows induction and allows deepening of the hypnotic trance. It corresponds to a metaphorical narrative associated with post-hypnotic suggestions and is fueled by the construction of suggestions and metaphors. The protocol is adapted to each patient. The investigator who remains present throughout the duration of the examination, maintains a hypnotic, empathetic, attentive attitude, and makes it possible to recover this material. The investigator, thanks to hypnosis, allows the development of a creative imagination which allows a modification of the relation to space and time.

Other: Hypnorelaxation

Interventions

Hypno-relaxation is induced by following VAKOG: external sensory identification, fixation of attention, bodily sensation, breathing, sensory perceptions, closing of the eyes. The work phase follows induction and allows deepening of the hypnotic trance. It corresponds to a metaphorical narrative associated with post-hypnotic suggestions and is fueled by the construction of adapted suggestions and metaphors, adapted to each patient. The investigator who remains present throughout the duration of the examination, maintains a hypnotic, empathetic, attentive attitude, and makes it possible to recover this material. Using the elements previously supplied by the patient, the investigator tells a story which allows the patient to focus his attention on something other than the performance of the somatosensory evoked potentials examination. The investigator, thanks to hypnosis, allows the development

Somatosensory evoked potentials with hypnorelaxation

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patient aged ≥ 18 years
  • Patient who was prescribed PES
  • French speaking patient
  • Patient affiliated to a social security scheme
  • Patient having given oral, free, informed and express consent

You may not qualify if:

  • Patient with severe pathologies of the peripheral nerve
  • Patient under guardianship or curatorship
  • Patient deprived of liberty
  • Pregnant woman
  • Patient denies
  • Psychotic patient

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Groupe Hospitalier Paris Saint-Joseph

Paris, 75014, France

Location

Related Publications (9)

  • Del Percio C, Triggiani AI, Marzano N, De Rosas M, Valenzano A, Petito A, Bellomo A, Soricelli A, Cibelli G, Babiloni C. Subjects' hypnotizability level affects somatosensory evoked potentials to non-painful and painful stimuli. Clin Neurophysiol. 2013 Jul;124(7):1448-55. doi: 10.1016/j.clinph.2013.02.008. Epub 2013 Apr 25.

    PMID: 23623560BACKGROUND
  • Fiorio M, Recchia S, Corra F, Tinazzi M. Behavioral and neurophysiological investigation of the influence of verbal suggestion on tactile perception. Neuroscience. 2014 Jan 31;258:332-9. doi: 10.1016/j.neuroscience.2013.11.033. Epub 2013 Nov 27.

  • Rainville P, Duncan GH, Price DD, Carrier B, Bushnell MC. Pain affect encoded in human anterior cingulate but not somatosensory cortex. Science. 1997 Aug 15;277(5328):968-71. doi: 10.1126/science.277.5328.968.

  • Faymonville ME, Laureys S, Degueldre C, DelFiore G, Luxen A, Franck G, Lamy M, Maquet P. Neural mechanisms of antinociceptive effects of hypnosis. Anesthesiology. 2000 May;92(5):1257-67. doi: 10.1097/00000542-200005000-00013.

  • Lang EV, Benotsch EG, Fick LJ, Lutgendorf S, Berbaum ML, Berbaum KS, Logan H, Spiegel D. Adjunctive non-pharmacological analgesia for invasive medical procedures: a randomised trial. Lancet. 2000 Apr 29;355(9214):1486-90. doi: 10.1016/S0140-6736(00)02162-0.

  • Stoelb BL, Molton IR, Jensen MP, Patterson DR. THE EFFICACY OF HYPNOTIC ANALGESIA IN ADULTS: A REVIEW OF THE LITERATURE. Contemp Hypn. 2009 Mar 1;26(1):24-39. doi: 10.1002/ch.370.

  • Vanhaudenhuyse A, Boveroux P, Boly M, Schnakers C, Bruno MA, Kirsch M, Demertzi A, Lamy M, Maquet P, Laureys S, Faymonville ME. [Hypnosis and pain perception]. Rev Med Liege. 2008 May-Jun;63(5-6):424-8. French.

  • Slack D, Nelson L, Patterson D, Burns S, Hakimi K, Robinson L. The feasibility of hypnotic analgesia in ameliorating pain and anxiety among adults undergoing needle electromyography. Am J Phys Med Rehabil. 2009 Jan;88(1):21-9. doi: 10.1097/PHM.0b013e31818e00bd.

  • De Pascalis V, Magurano MR, Bellusci A. Pain perception, somatosensory event-related potentials and skin conductance responses to painful stimuli in high, mid, and low hypnotizable subjects: effects of differential pain reduction strategies. Pain. 1999 Dec;83(3):499-508. doi: 10.1016/S0304-3959(99)00157-8.

MeSH Terms

Conditions

Neuritis

Condition Hierarchy (Ancestors)

Peripheral Nervous System DiseasesNeuromuscular DiseasesNervous System Diseases

Study Officials

  • Veronique MARCAUD, MD

    Fondation Hôpital Saint-Joseph

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 30, 2019

First Posted

January 6, 2020

Study Start

January 13, 2020

Primary Completion

January 16, 2023

Study Completion

April 6, 2023

Last Updated

April 27, 2023

Record last verified: 2023-04

Locations