Elaboration of a Pre-surgery Mapping Protocol of Primary Motor Cortex, Prior to an Implementation of a Stimulation of Primary Motor Cortex for Patients With Deafferentiation of Brachial Plexus Pain

NCT ID: NCT01104506

Last Updated: 2010-12-14

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

TERMINATED

Clinical Phase

NA

Total Enrollment

13 participants

Study Classification

INTERVENTIONAL

Study Start Date

2010-04-30

Study Completion Date

2010-09-30

Brief Summary

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In the context of an insufficiency of clinical results for cortical stimulation in treatment of brachial plexus post-avulsion pains, one of the possibility for failure is the bad pre-surgery mapping of the area to stimulated bu the usual methods (PEM et fMRI). This purpose of this study is to realise a precise mapping of the primary motor cortex post brachial plexus avulsion.

The principal endpoints is to identify and test the reliability of a muscular marker for which the cortical representation is localized immediately next to the superior member area. Several muscles of cephalic, cervical and chest area will be investigate.

The methods used will be mono-shock transcranial magnetic stimulation (mTMS) and functional MRI.

Concerning mTMS, several methods will be tested: best position on the scalp, realisation of outputs maps with extreme points average method, with mass center method.

Concerning fMRI studies, the above paradigms will be checked: imaginary movements of hand, blow up and down abdomen, eyes winking.

Statistical tests will confirm the best muscle candidate and will permit to evaluate the reliability of the method.

Detailed Description

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Conditions

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Painful Avulsion of Brachial Plexus

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Painless plexus

Patient with a painless avulsion of brachial plexus

Group Type ACTIVE_COMPARATOR

fMRI

Intervention Type PROCEDURE

mTMS

Intervention Type PROCEDURE

Healthy

Healthy volunteers

Group Type ACTIVE_COMPARATOR

fMRI

Intervention Type PROCEDURE

mTMS

Intervention Type PROCEDURE

Painful plexus

Patient with a painful avulsion of brachial plexus

Group Type EXPERIMENTAL

fMRI

Intervention Type PROCEDURE

mTMS

Intervention Type PROCEDURE

Interventions

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fMRI

Intervention Type PROCEDURE

mTMS

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* For all groups: informed consent, social insurance
* For group 1 "painful BPA": consulting to the Nantes'UH for pain of BPA, EVA≥4, neurological deficiency partial or total
* For group 2 "painless BPA": EVA\<4, neurological deficiency partial or total, matching with group 1 on the neurological deficiency
* For group 3 "Healthy": matching with group 1 on age ±10 years

Exclusion Criteria

* No informed consent
* Medical history of epilepsy
* Pregnant women
* Contra-indication to MRI
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Nantes University Hospital

OTHER

Sponsor Role lead

Responsible Party

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Nantes University Hospital

Locations

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Nantes UH

Nantes, , France

Site Status

Countries

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France

Other Identifiers

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2010-A00141-38

Identifier Type: OTHER

Identifier Source: secondary_id

BRD 10/2-A

Identifier Type: -

Identifier Source: org_study_id