Basal ganglia stroke
basal ganglia is generally a ganglion which is a collection of cell bodies outside the central nervous system.It is a collection of nuclei deep to the white matter of cerebral cortex. It includes:
This region has a supply of blood that can easily damage or blocked. When the supply of blood to any of region in the brain is disturbed, the individual will undergo a stroke. When a stroke occurs because of lack of blood flow in the basal ganglia it is referred as basal ganglia stroke . Strokes that damage the basal ganglia can cause a range of abnormalities in body movement.The basal ganglia mainly control coordination of movement, and when these nerve centers become damaged, the body loses its ability to coordinate. This disorder is called ataxia. If the basal ganglia become damaged by a stroke, then the muscles of face, mouth, and throat also weaken and function incorrectly.
signs and symptoms of basal ganglia stroke
When a stroke occurs because of lack of blood flow in the basal ganglia, it leads to symptoms. The typical symptoms for a stroke in this area include:
1) Changes in body movement – when stroke occurs in the basal ganglia , a variety of anomalies in movement of the body occur.it include–
Stiff and Rigid muscles
Loss of movement
Ataxia(loss of ability to coordinate)
Difficulty in swallowing
Difficulty in smiling or speaking
2) Cognitive impairment- Patients having stroke affecting the basal ganglia will experience a decrease in cognitive function. Some of the functions affected by a stroke in the basal ganglia include
difficulty in making decisions
difficulty in attention.
These symptoms improve over time, but rarely return to normal levels
3) Unconsciousness, nausea, vomiting and headache- A hemorrhagic stroke in the basal ganglia will result in headache, nausea and vomiting. when bleeding occurs in the caudate nucleus it can spread to other areas of the brain. As a result the blood irritates the nerves and tissues of the brain and can lead to pain and vomiting. Furthermore, the increased pressure caused by the excess blood can lead to parts of the brain shutting down. Once the brain begins to shut down, the patient can lose consciousness and enters into the state of coma.
4) Personality changes- A basal ganglia stroke can lead to personality changes, like
- Difficulty in understanding
- Lack of motivation
- Loss of interest in any activities
- Crying for no reason
- Laugh for no reason
Article publié pour la première fois le 11/10/2011