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Seizures that occur after brain injury may be due to the brain adapting to injury (neuroplasticity). [40] This process is known as epileptogenesis. [41] There is loss of inhibitory neurons because they die due to the injury. [41] [40] The brain may also adapt and make new neuron connections that may be hyper-excitatory. [41] [40]
Because epileptic seizures typically include convulsions, the term convulsion is often used as a synonym for seizure. [1] However, not all epileptic seizures result in convulsions, and not all convulsions are caused by epileptic seizures. [1] [2] Non-epileptic convulsions have no relation with epilepsy, and are caused by non-epileptic seizures. [1]
Seizures may also occur as a consequence of other health problems; [30] if they occur right around a specific cause, such as a stroke, head injury, toxic ingestion, or metabolic problem, they are known as acute symptomatic seizures and are in the broader classification of seizure-related disorders rather than epilepsy itself.
Anything that causes epilepsy causes epileptogenesis, because epileptogenesis is the process of developing epilepsy. Structural causes of epilepsy include neurodegenerative diseases , traumatic brain injury , stroke , brain tumor , infections of the central nervous system , and status epilepticus (a prolonged seizure or a series of seizures ...
Post-traumatic seizures (PTS) are seizures that result from traumatic brain injury (TBI), brain damage caused by physical trauma.PTS may be a risk factor for post-traumatic epilepsy (PTE), but a person having a seizure or seizures due to traumatic brain injury does not necessarily have PTE, which is a form of epilepsy, a chronic condition in which seizures occur repeatedly.
Seizures that occur after head injury are not necessarily due to epilepsy or even to the head trauma. [11] Like anyone else, TBI survivors may have seizures due to factors including imbalances of fluid or electrolytes , epilepsy from other causes, hypoxia (insufficient oxygen), and ischemia (insufficient blood flow to the brain). [ 11 ]
About 2-5% of all children will experience such a seizure during their childhood. [26] In most cases, a febrile seizure will not indicate epilepsy. [26] Approximately 40% of children who experience a febrile seizure will have another one. [26] In those with epilepsy, fever can trigger a seizure.
The tonic phase is usually the first phase and consciousness will quickly be lost (though not all generalized tonic–clonic seizures involve a full loss of consciousness), and the skeletal muscles will suddenly tense, often causing the extremities to be pulled towards the body or rigidly pushed away from it, which will cause the patient to ...
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