epil_0048.docx - some develop epileptic seizures...

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some develop epileptic seizures afterwards (see page 93). If one parent has idiopathic epilepsy the risk of a child developing epilepsy is 4–6%, compared to a risk of 0.3-0.5% in the general population (Europe). If both parents have idiopathic epilepsy, the risk rises to 12– 20%. In parents with symptomatic epilepsy, there is still a slight increase in the risk—up to 2% in European studies. EFFECTS OF BRAIN MATURATION The resistance to seizures also depends on the maturation of the brain. The resistance in the first year of life (except during the newborn period) is very high, and therefore only a severe injury such as severe brain damage since birth, meningitis or tuberous sclerosis, will produce seizures. Between the ages of one and four the resistance to seizures is very low. A simple febrile disease may precipitate seizures. After the age of four the resistance is again high, and seizures are mainly seen in already- braindamaged children. This resistance diminishes again from about the seventh year when the idiopathic epilepsies tend to appear. The resistance is at its lowest around the time of the
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  • Fall '15
  • Neurology, brain damage, Seizure, Electroencephalography, Myoclonus

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Christopher Reinemann
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