The long-term effects of febrile seizures on the hippocampal neuronal plasticity - Clinical and experimental evidence

Chao Ching Huang, Ying Chao Chang

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Febrile seizures are the most common seizure disorder in childhood, but their long-term effects on the developing brains especially neuronal injury and neurocognitive function remain unresolved. Recent epidemiological studies reassure that most febrile seizures do not adversely affect global intelligence and hippocampal function, such as memory. However, there are concerns regarding those children who experience febrile seizures during the first postnatal year, having prior developmental delay and pre- or peri-natal events. Magnetic resonance imaging (MRI) studies confirmed that prolonged and focal FS can occasionally produce acute hippocampal injury that evolves into atrophy. Animal studies have revealed that the exposure of hippocampal neurons to experimental febrile seizures early in life, particularly prolonged or frequently repetitive FS, or together with brain malformation, may lead to sustained dysfunction of these cells, in spite of the absence of neuronal damage. Genetic studies suggest that the relationship between febrile seizures and subsequent epilepsy and neurocognitive dysfunction is sometimes genetic, but there are complex interactions with genetic or environmental modifiers. Therefore, there is a small group of children in whom febrile seizures-induced hippocampal injury might occur. Identification of the target population for subsequent mesial temporal sclerosis is important for prevention and early intervention.

Original languageEnglish
Pages (from-to)383-387
Number of pages5
JournalBrain and Development
Volume31
Issue number5
DOIs
Publication statusPublished - May 2009
Externally publishedYes

Keywords

  • Febrile seizures
  • Hippocampus
  • Mesial temporal sclerosis
  • Neuroplasticity
  • Temporal lobe epilepsy

ASJC Scopus subject areas

  • Clinical Neurology
  • Developmental Neuroscience
  • Pediatrics, Perinatology, and Child Health

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