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CNS Idiopathic Conditions - Pathology (view source)

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==[[Idiopathic Epilepsy]]==

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* A seizure is a brain disorder which manifests as paroxysmal cerebral dysrhythmia.

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** The episode has a sudden onset and ceases spontaneously.

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** Seizures tend to recur.

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* In epilepsy, individuals appear to have a low seizure threshold.

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** This predisposes their neurons to depolarize of their own volition.

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* "Idiopathic epilepsy" is said to occur when no other cause of seizuring is apparent.

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~~===Pathogenesis===~~

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* All seizures arise from a small group of neurons that periodically and spontaneously depolarize.

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* In addition to being idiopathic (i.e. low seizure threshold), this sudden, uncontrolled neuronal discharge can occur due to:

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** Structural causes

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*** Neoplasms

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*** Inflammation

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*** Trauma

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** Biochemical causes

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*** Hypocalcaemia

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*** hypoglycaemia

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*** Hepatic encephalopathy.

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~~[[Category:Central Nervous System - Idiopathic Pathology]]~~

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