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QEEG and Qualitative EEG for the Identidification of Abnormal Patterns in Fibromyalgia Patients

Quantitative and Qualitative EEG From Fibromyalgia Patients for the Identification of Abnormal Patterns on Closed Eyes EEG

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT02662270
Acronym
QEEGFP
Enrollment
150
Registered
2016-01-25
Start date
2022-03-01
Completion date
2023-03-12
Last updated
2023-08-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Fibromyalgia

Keywords

Fibromyalgia, QEEG, Brain activity, fMRI, Diagnosis

Brief summary

Fibromyalgia is a relatively young condition recently recognized by the WHO as a separated clinical entity. Part of the medical comunity thinks of it as a mixed condition between depresion and rheumatic pain, however, functional data provided by sophisticated imaging techniques points at a diminished brain activity in several brain regions. The present study aims to characterize those findings by means of QEEG in order to establish the electroencephalographic characteristics of fibromyalgia patients.

Detailed description

Fibromyalgia is a disease that part of the general population and even the medical community views with skepticism and only recently was accepted as a true condition by the World Health Organization. Some physicians see it as a form of depresion mixed with rheumatic pain. However recent findings in functional magnetic resonance imaging and positron emited tomography documented diminished brain activity on several regions. The impairments must be located within the areas with a documented functional defect, wherein, spontaneous braincells activity chould arise. Therefor electroencephalography findings should be a valuable diagnostic tool for early detection in fibromyalgia. The present study aims to analyse the differences between bioelectric characteristics in EEG from fibromyalgia patients with their eyes closed in a 21 electrode arragement. Normal graphoelements as well as abnormal ones and its topographic distribution and functional conections will be analyzed. The working hypotesis is that fibromyalgia patients will present distintive characteristics in the same areas where a diminished brain activity has been documented by metabolic and morphologic tests as a group and that those characteristics are suitable to be measured by QEEG and distinguishable from healthy subjects.

Interventions

None listed

Sponsors

Universidad de Murcia
CollaboratorOTHER
Spanish Foundation for Neurometrics Development
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
ALL
Age
20 Years to 70 Years
Healthy volunteers
Yes

Inclusion criteria

* Men and women between 20 and 70 years old, diagnosed with fibromyalgia and a control group matched by age and gender

Exclusion criteria

* Any other concomitant neurologic disease or impairment

Design outcomes

Primary

MeasureTime frameDescription
Differences between groups in Fast Fourier TransformationUp to one yearChanges in Power in EEG over different electrodes
Topographic distribution of the frequency bandsUp to one yearBrain areas with a characteristic pattern
Dominant EEG frequency localizationUp to one yearTo document the dominant frequency in the resting EEG for all subjects
Abnormal EEG-graphoelements descriptionUp to one yearTo identify the abnormal EEG-graphoelements found in fibromyalgia patients
Functional conectivityUp to one yearTo identify the different brain connections between fibromyalgia patients

Countries

Spain

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026