J 2019

Hippocampal high frequency oscillations in unilateral and bilateral mesial temporal lobe epilepsy

ŘEHULKA, Pavel, Jan CIMBALNIK, Martin PAIL, Jan CHRASTINA, Markéta HERMANOVÁ et. al.

Basic information

Original name

Hippocampal high frequency oscillations in unilateral and bilateral mesial temporal lobe epilepsy

Authors

ŘEHULKA, Pavel (203 Czech Republic, guarantor, belonging to the institution), Jan CIMBALNIK (203 Czech Republic), Martin PAIL (203 Czech Republic, belonging to the institution), Jan CHRASTINA (203 Czech Republic, belonging to the institution), Markéta HERMANOVÁ (203 Czech Republic, belonging to the institution) and Milan BRÁZDIL (203 Czech Republic, belonging to the institution)

Edition

Clinical Neurophysiology, Clare, Elsevier Ireland, 2019, 1388-2457

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30210 Clinical neurology

Country of publisher

Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 3.214

RIV identification code

RIV/00216224:14110/19:00110199

Organization unit

Faculty of Medicine

UT WoS

000469338500008

Keywords in English

High frequency oscillations; Hippocampus; Hippocampal sclerosis; Temporal lobe epilepsy; Bitemporal epilepsy

Tags

International impact, Reviewed
Změněno: 31/3/2020 22:19, Mgr. Pavla Foltynová, Ph.D.

Abstract

V originále

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. (C) 2019 Published by Elsevier B.V. on behalf of International Federation of Clinical Neurophysiology.

Links

ROZV/24/LF/2018, interní kód MU
Name: LF - Příspěvek na IP 2108
Investor: Ministry of Education, Youth and Sports of the CR, Internal development projects