The epileptic seizure results from an excessive and abnormal activity of a population of neurons, more or less extensive, located in the brain. On a very often short time, the affected neurons activate all at once at the same time, and cause a kind of electric shock.
The causes of this synchronous hyperexcitability are different from one epileptic to another, but lead to the same result: the epileptic seizure. Depending on the location of the epileptic discharge, the symptoms of the seizure will be different.Epilepsy is a complex condition with a wide variety of causes. When a cause is well identified, we speak of symptomatic epilepsy.
Epilepsy may be due to:
- a catch of poisons,
- a brain tumor,
- a stroke,
- a brain infection,
- a cerebral malformation,
- head trauma, etc.
The expression of epilepsy will then be different depending on the cause.When the cause is not identified, we talk about idiopathic epilepsy . It combines genetic and environmental causes.
There is no gene for epilepsy, but several genetic variations that may explain a predisposition to the disease.
Like all multifactorial diseases, gene expression would be influenced by environmental factors, such as:
- certain aspects of lifestyle: tobacco, lack of sleep, stress, lack of calcium or blood sugar, etc.
- certain conditions (malaria, brain disorders, cardiovascular disorders, etc.).
A whole battery of complementary examinations is started: firstly an electroencephalogram (EEG) to confirm the diagnosis of epilepsy, then a CT scan, or even an MRI (magnetic resonance imaging) to find the cause.Want to share, share your experience or need advice? See you in our FORUMS Epilepsy or Neurology !