Epileptic Seizures in Alzheimer Disease: A Review

András Horváth, A. Szűcs, Gábor Barcs, Jeffrey L. Noebels, A. Kamondi

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Alzheimer disease (AD) is the most frequent cause of major neurocognitive disorders with a huge economical and medical burden. Several studies pointed out that AD is associated with a high risk for developing epileptic seizures. The aims of our review were to evaluate and to summarize the current literature (ending in September 2015) of animal and human studies in the relation of AD and epileptic seizures. It seems likely that epileptic hyperexcitation could be partially responsible for the progression of AD due to the increased rate of amyloid deposition. Pathologic changes in animal models of AD are similar to those seen in human temporal lobe epilepsy. Antiepileptic treatment had a positive effect on cognitive function in animal and human studies. Because the detection of seizures in patients with cognitive decline is extremely difficult because of methodological problems, the true prevalence of seizures has remained unclear. Nonconvulsive seizures with no overt clinical symptoms may be frequent seizure types in AD. These are hard to notice by clinical observation and difficult to detect with standard scalp electroencephalogram (EEG) methods. We propose that long-term EEG recording and video-EEG monitoring is necessary to prove the presence of epileptiform activity in demented patients.

Original languageEnglish
JournalAlzheimer Disease and Associated Disorders
DOIs
Publication statusAccepted/In press - Jan 11 2016

ASJC Scopus subject areas

  • Geriatrics and Gerontology
  • Psychiatry and Mental health
  • Gerontology
  • Clinical Psychology

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