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9.3.11

Febrile seizures can cause mental retardation, please?

Brain injury can cause convulsions, seizure can also cause brain damage. It was proved, a seizure on the effects of recent memory, equivalent to damage caused by concussion; status convulsion may have severe brain damage and mental retardation caused by. Because in convulsion sexual discharge Shi, brain organization has large of neurons occurs fast, and repeatedly of fat except polarization, required more of energy maintained sodium? butuomei tomb δ special bags of willow branches, framed by bamboo, for building dykes? neural delivery mass of synthesis and release also increased, cell metabolism process speed up, and convulsion Shi temperature rise, muscle convulsions also makes general metabolism increased, high fever can makes animal brain metabolism increased 25%, these activities by required energy than normal high out 2~4 times. Abnormal electrical activity of the brain which seizure discharge itself significantly increased the need for energy, it is also an important reason to cause brain damage. Convulsion causing maximum metabolic burden to the brain.

For febrile convulsion in children one of the most common, general good prognosis, causes very low incidence of mental retardation, this is because of simple febrile seizures in General, less number of attack, time is short, fast recovery, no abnormal nerve syndrome, therefore less effect on the brain when the seizure. But a few patients can cause mental retardation, currently there are two explanations for this, a view that serious brain injury can cause febrile convulsion, that lead to epilepsy and mental retardation, which refers to the longer a convulsion, recurrence of convulsions more times, the greater the possibility of brain damage occurs. Another view was that, before the febrile convulsion, abnormal nervous system has occurred, this does not occur even in children febrile seizures mental retardation also occurs is considered febrile convulsion in children with neurological symptoms were not caused by convulsion itself, but before the febrile diseases, febrile seizures and mental retardation is not causation, but common cause determined.

Seizures cause brain damage and age have close relations. Convulsion in children more than 30 minutes you can produce ischemic neuronal changes, and more than 6 adults convulsion hours before this change occurs. This is because infants with metabolism in the brain are active during the period, in a period of strong growth, differentiation of neurons, are development of the brain the most vulnerable, so the seizure earlier the age at onset, the incidence of mental retardation may be higher.


All in all there have febrile anomalies of the nervous system, can lead to mental retardation in the future, serious seizure itself can also cause brain damage and the impact of intelligence.

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