Electroencephalogram, Stroke
Conditions
Brief summary
Stroke has been considered one of the main causes of long-term disability in the adult population, and is no longer considered a disease of the elderly, since 2/3 of all strokes occur among people under 70 years of age. According to the Ministry of Health, stroke is responsible for 40% of early retirements, being one of the most important causes of mortality in Brazil. The electroencephalogram (EEG) has been shown to be a very useful tool in the study of functional status and for the diagnosis of brain damage and disorders. It is considered a simple, non-invasive test with high temporal resolution, being a method widely used in laboratories to non-invasively monitor brain activity.
Detailed description
Stroke has been considered one of the main causes of long-term disability in the adult population, and is no longer considered a disease of the elderly, since 2/3 of all strokes occur among people under 70 years of age. According to the Ministry of Health, stroke is responsible for 40% of early retirements, being one of the most important causes of mortality in Brazil. Stroke usually causes long-term deficits such as asymmetrical muscle weakness between limbs, impaired proprioceptive ability, sensory loss, vision problems, and spasticity. In addition, these sensorimotor deficits interfere with various functions of the lower limbs, including balance, postural control, and gait ability, affecting their quality of life. The electroencephalogram (EEG) has been shown to be a very useful tool in the study of functional status and for the diagnosis of brain damage and disorders. It is considered a simple, non-invasive test with high temporal resolution, being a method widely used in laboratories to non-invasively monitor brain activity. Microstates reflect short periods (\ 100 ms) of nearly stable brain states evolving over time, resulting from the synchronous and coordinated activity of brain networks. The aim of this study is to observe whether EEG microstates have correlations with clinical characteristics of people with stroke.
Interventions
OTHERelectroencephalogram
The EEG is the recording of electrical activity in the brain in different regions of the cortex. The capture of electrical signals is performed by attaching electrodes to the surface of the scalp. As the EEG signal has an amplitude in microvolts (µVpp) it is necessary to use amplifiers, leaving the signal possible to be registered. The electrode-electrolyte interface is very important and must be able to provide a good connection between the skin and the conductive material of the electrode, otherwise the EEG signal, in addition to being contaminated by noise, may suffer distortion.
Sponsors
Federal University of Paraíba
Study design
Observational model
OTHER
Time perspective
CROSS_SECTIONAL
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* people over 18 years of age, regardless of sex and with a stroke confirmed by computed tomography or magnetic resonance imaging.
Exclusion criteria
* have other associated neurological pathology
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| eeg microstates | Immediately after evaluation | We will determine the number of topographic maps using a pre-determined criterion of the four classical maps (A, B, C and D) and classify the continuous EEG data according to the topographic map with which a given stretch has the highest correlation. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Relationship between microstates and injury severity | Immediately after evaluation | They were evaluated with the National Institute of Health Stroke Scale (NIHSS) to quantify the severity and magnitude of the neurological deficit after the stroke. |
| Relationship between microstates and cognitive function | Immediately after evaluation | assessment of cognitive function - Montreal Cognitive Assessment (MoCA) |
Countries
Brazil
Contacts
Primary ContactLETICIA MARIA
Outcome results
None listed