Hippocampal high frequency oscillations in unilateral and bilateral mesial temporal lobe epilepsy
Jazyk angličtina Země Nizozemsko Médium print-electronic
Typ dokumentu časopisecké články, práce podpořená grantem
PubMed
31100580
DOI
10.1016/j.clinph.2019.03.026
PII: S1388-2457(19)30120-8
Knihovny.cz E-zdroje
- Klíčová slova
- Bitemporal epilepsy, High frequency oscillations, Hippocampal sclerosis, Hippocampus, Temporal lobe epilepsy,
- MeSH
- amygdala patofyziologie MeSH
- dospělí MeSH
- elektroencefalografie metody MeSH
- epilepsie temporálního laloku patologie patofyziologie MeSH
- hipokampus patologie patofyziologie MeSH
- implantované elektrody MeSH
- lidé středního věku MeSH
- lidé MeSH
- mladý dospělý MeSH
- retrospektivní studie MeSH
- spánkový lalok patofyziologie MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mladý dospělý MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
OBJECTIVE: The main aim of this study was to investigate the potential differences in terms of interictal high frequency oscillations (HFOs) between both hippocampi in unilateral (U-MTLE) and bilateral mesial temporal lobe epilepsy (B-MTLE). METHODS: Sixteen patients with MTLE underwent bilateral hippocampal depth electrode implantation as part of epilepsy surgery evaluation. Interictal HFOs were detected automatically. The analyses entail comparisons of the rates and spatial distributions of ripples and fast ripples (FR) in hippocampi and amygdalae, with respect to the eventual finding of hippocampal sclerosis (HS). RESULTS: In U-MTLE, higher ripple and FR rates were found in the hippocampi ipsilateral to the seizure onset than in the contralateral hippocampi. Non-epileptic hippocampi in U-MTLE were distinguished by significantly lower ripple rate than in the remaining analyzed hippocampi. There were not differences between the hippocampi in B-MTLE. In the hippocampi with proven HS, higher FR rates were observed in the ventral than in the dorsal parts. CONCLUSIONS: Non-epileptic hippocampi in U-MTLE demonstrated significantly lower ripple rates than those epileptic in U-MTLE and B-MTLE. SIGNIFICANCE: Low interictal HFO occurrence might be considered as a marker of the non-epileptic hippocampi in MTLE.
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