Medical Hypnosis Against Anxiety and Pain in Electro-neuro-myography

NCT ID: NCT04372537

Last Updated: 2025-12-23

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

6 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-03-22

Study Completion Date

2024-04-29

Brief Summary

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Electroneuromyography (ENMG) is a regular neurological investigation that might be painful or unpleasant. Medical hypnosis can avoid these sensations, and is more and more performed during other medico-technical procedures (radiology, biopsies for example). This study aims at evaluate the effect of medical hypnosis on pain and anxiety during ENMG, in patients presenting with anxiety. Our hypothesis is that the anxiety and pain during ENMG will be lower in patients with hypnosis compared to patients with standard care. This will allow us to help patients with this tool during most ENMG procedures, and extend it to other electrophysiological procedures in the future.

Detailed Description

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Medical hypnosis is more and more used during some medico-technical investigational procedures, such as interventional radiology, dental procedures, baby deliveries. Using the modified conscious state induced by trance or by conversational hypnosis (thanks to verbal and nonverbal language) allows a better tolerance of these procedures. Only very few situations recommend against this approach.

ENMG is a frequently performed procedure in neurology to explore neuromuscular functions. It implies electric stimulations, needle insertion and needs the patient cooperation and the patient's well-being. This is all the more necessary that this procedure may be repeated for a patient along his/her life.

Only one study evaluated the effect of hypnosis on pain and anxiety during ENMG (Slack and al., 2009). Despite a low statistical power due to a small sample, it showed a reduction of the maximal pain during the needle electromyography.

More proof is therefore needed to assess the efficacity of hypnosis against pain and anxiety during ENMG.

Several members of our nurse and medical team have an experience in hypnosis practice and this procedure is sometimes used in some patients, when specifically required, alone or with other analgesic procedures (like nitrous oxide), but not in the current standard practice. This is mainly useful in patients with anxiety.

This study's principal objective is then to evaluate the effect of an hypnosis procedure, compared to a standard clinical procedure alone, on pain consecutive to ENMG, in patients presenting with anxiety when attending an ENMG. The secondary objective is to assess the effect of hypnosis on anxiety consecutive to the ENMG.

This is a monocentric, controlled, randomized, open-labeled study, with two balanced arms. The study cannot be blind since the members of the staff will apply at the same time the hypnosis procedures and the ENMG investigations.

Patients who have to undergo an ENMG due to their standard care investigations will be consecutively included as long as they're taken care of by members of the staff with an hypnosis experience and express any anxiety.

48 patients in each group will have to be include to achieve a sufficient power.

Statistical analyses will be blindly performed by our methodology, biostatistics and data management unit. All tests will be bilateral with an alpha risk of 5%, with an intention-to-treat procedure.

Our hypothesis is a reduction of pain and anxiety in the hypnosis group compared to the standard care one.

If this is confirmed, it will be an argument to offer this procedure in a systematic way to any patient with anxiety who has to undergo an ENMG as well as developing its use in other electrophysiological investigations.

Conditions

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Anxiety

Keywords

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hypnosis electro-neuro-myography anxiety pain analgesia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

SUPPORTIVE_CARE

Blinding Strategy

NONE

Study Groups

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Hypnosis

Patients will benefit from formal hypnosis (trance induction, hypno analgesia, comfort suggestions) and/or conversational hypnosis (confusion, distraction, use of chosen words, goodwill using verbal and non verbal languages).

They will also get to be informed of the proceedings of the performed examination as the standard procedure group.

Group Type EXPERIMENTAL

hypnosis

Intervention Type BEHAVIORAL

use of hypnosis.

Standard procedure group.

Patients will be informed of the proceedings of the performed examination, without using any hypnosis technique.

This corresponds to the standard clinical procedures used while performing an electroneuromyogram.

Group Type ACTIVE_COMPARATOR

standard care

Intervention Type BEHAVIORAL

standard clinical procedure

Interventions

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hypnosis

use of hypnosis.

Intervention Type BEHAVIORAL

standard care

standard clinical procedure

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* patient admitted for ENMG manifesting: spontaneous verbal anxiety about taking the test/- a state of anxiety about the examination, as evidenced by a dark colour on a wellness scale used in the unit
* with a good understanding of the French language
* able to complete self-questionnaires
* Patient who has given written consent to participate in the trial
* Socially insured patient

Exclusion Criteria

* algesic sensitivity disorders
* known history of psychiatric illness or current known psychiatric illness: severe depression, psychosis
* Administrative reasons: inability to receive informed information, inability to participate in the entire study, lack of social security coverage, refusal to sign the consent form
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University Hospital, Lille

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Perrine Bocquillon, MD

Role: PRINCIPAL_INVESTIGATOR

University Hospital, Lille

Locations

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Hopital Roger Salengro, CHU Lille

Lille, , France

Site Status

Countries

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France

Other Identifiers

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2020-A00092-37

Identifier Type: OTHER

Identifier Source: secondary_id

2019_42

Identifier Type: -

Identifier Source: org_study_id