Evaluation of the Brain Activity During Spinal Cord Stimulation in Failed

Status Recruiting

Clinical Trial Summary

Functional Magnetic Resonance Imaging (fMRI)and MR Spectroscopy of the brain are perfect tools to investigate the changes in the brainstem and brain evoked by the orthodromically impulses of a SCS.

Clinical Trial Description

In case a patient meets all inclusion and no exclusion criteria, he/she will be implanted with an epidural neurostimulation lead (electrode).

The day of implant will be recorded as day 0 (table 1) and will always be a Thursday.

Post lead implant, the patient will be hospitalized for a small week as per common practice in case of the intervention outside of the study.

During hospital stay, the investigator of the study, or a representative of the product manufacturer, Medtronic®, will search for the optimal stimulation parameters to evoke correct paraesthesia coverage and pain relief. If appropriate parameters have been found, these will be saved in the external neurostimulator.

After maximum one hour, the neurostimulator will be turned off again.

On day 12, a Tuesday, a MR spectrospoy will be performed. Each patient will undergo three sessions.

Each session will be divided into a MR spectroscopy session and fMRI session without stimulation and a session with stimulation. The MR spectroscopy session without stimulation will bring us the baseline in neurobiology of neuropathic pain; after measurement, the stimulator will be switch on and a MR spectroscopy will be performed during a longer period of time (10 min) in order to determine neurobiological changes in time during SCS.

The 3 MR spectroscopy sessions will be performed on different regions in the brain (both talami and rostral region of anterior cingulated cortex) ;

Study Design

Allocation: Non-Randomized, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Basic Science

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01181817
Study type	Interventional
Source	Universitair Ziekenhuis Brussel
Contact	Maarten Moens, MD
Phone	0032478884047
Email	mtmoens@gmail.com
Status	Recruiting
Phase	N/A
Start date	September 2008
Completion date	September 2011

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Evaluation of the Brain Activity During Spinal Cord Stimulation in Failed Back Surgery Syndrome Using Functional MRI and MRS

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms