Foramen ovale recordings: A presurgical investigation in epilepsy

UC Wieshmann; CE Denby; PR Eldridge; N Roberts; CE Mackay; JA Webb; BM Tedman; DW Chadwick; DF Smith

doi:10.1159/000067019

Foramen ovale recordings: A presurgical investigation in epilepsy

UC Wieshmann^*, CE Denby, PR Eldridge, N Roberts, CE Mackay, JA Webb, BM Tedman, DW Chadwick, DF Smith

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

The aim of our study was to determine when foramen ovale recordings add useful information to scalp EEG recordings and magnetic resonance imaging (MRI) with hippocampal measurements. We evaluated the outcome of 79 patients with non-lesional partial epilepsy with presumed temporal seizure onset. Ictal foramen ovale recordings were performed in 16 patients with normal MRI ('MRI-negative group') and 41 patients with lateralizing MRI but non-lateralizing scalp EEG ('discordant group'). 22 patients with concordant MRI and scalp EEG were not investigated with foramen ovale recordings ('concordant group'). The seizure-free rate was higher in concordant than discordant patients despite additional investigation with foramen ovale electrodes (71 and 55% seizure free, respectively). No useful localizing information was added with foramen ovale recordings in MRI-negative patients.

Original language	English
Pages (from-to)	3-7
Number of pages	5
Journal	European Neurology
Volume	49
Issue number	1
DOIs	https://doi.org/10.1159/000067019
Publication status	Published - 2003

Keywords / Materials (for Non-textual outputs)

foramen ovale recordings
epilepsy surgery
magnetic resonance imaging
TEMPORAL-LOBE EPILEPSY
NORMAL MRI
RESONANCE
ELECTRODE
SURGERY

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10.1159/000067019

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title = "Foramen ovale recordings: A presurgical investigation in epilepsy",

abstract = "The aim of our study was to determine when foramen ovale recordings add useful information to scalp EEG recordings and magnetic resonance imaging (MRI) with hippocampal measurements. We evaluated the outcome of 79 patients with non-lesional partial epilepsy with presumed temporal seizure onset. Ictal foramen ovale recordings were performed in 16 patients with normal MRI ('MRI-negative group') and 41 patients with lateralizing MRI but non-lateralizing scalp EEG ('discordant group'). 22 patients with concordant MRI and scalp EEG were not investigated with foramen ovale recordings ('concordant group'). The seizure-free rate was higher in concordant than discordant patients despite additional investigation with foramen ovale electrodes (71 and 55% seizure free, respectively). No useful localizing information was added with foramen ovale recordings in MRI-negative patients.",

keywords = "foramen ovale recordings, epilepsy surgery, magnetic resonance imaging, TEMPORAL-LOBE EPILEPSY, NORMAL MRI, RESONANCE, ELECTRODE, SURGERY",

author = "UC Wieshmann and CE Denby and PR Eldridge and N Roberts and CE Mackay and JA Webb and BM Tedman and DW Chadwick and DF Smith",

year = "2003",

doi = "10.1159/000067019",

language = "English",

volume = "49",

pages = "3--7",

journal = "European Neurology",

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TY - JOUR

T1 - Foramen ovale recordings

T2 - A presurgical investigation in epilepsy

AU - Wieshmann, UC

AU - Denby, CE

AU - Eldridge, PR

AU - Roberts, N

AU - Mackay, CE

AU - Webb, JA

AU - Tedman, BM

AU - Chadwick, DW

AU - Smith, DF

PY - 2003

Y1 - 2003

N2 - The aim of our study was to determine when foramen ovale recordings add useful information to scalp EEG recordings and magnetic resonance imaging (MRI) with hippocampal measurements. We evaluated the outcome of 79 patients with non-lesional partial epilepsy with presumed temporal seizure onset. Ictal foramen ovale recordings were performed in 16 patients with normal MRI ('MRI-negative group') and 41 patients with lateralizing MRI but non-lateralizing scalp EEG ('discordant group'). 22 patients with concordant MRI and scalp EEG were not investigated with foramen ovale recordings ('concordant group'). The seizure-free rate was higher in concordant than discordant patients despite additional investigation with foramen ovale electrodes (71 and 55% seizure free, respectively). No useful localizing information was added with foramen ovale recordings in MRI-negative patients.

AB - The aim of our study was to determine when foramen ovale recordings add useful information to scalp EEG recordings and magnetic resonance imaging (MRI) with hippocampal measurements. We evaluated the outcome of 79 patients with non-lesional partial epilepsy with presumed temporal seizure onset. Ictal foramen ovale recordings were performed in 16 patients with normal MRI ('MRI-negative group') and 41 patients with lateralizing MRI but non-lateralizing scalp EEG ('discordant group'). 22 patients with concordant MRI and scalp EEG were not investigated with foramen ovale recordings ('concordant group'). The seizure-free rate was higher in concordant than discordant patients despite additional investigation with foramen ovale electrodes (71 and 55% seizure free, respectively). No useful localizing information was added with foramen ovale recordings in MRI-negative patients.

KW - foramen ovale recordings

KW - epilepsy surgery

KW - magnetic resonance imaging

KW - TEMPORAL-LOBE EPILEPSY

KW - NORMAL MRI

KW - RESONANCE

KW - ELECTRODE

KW - SURGERY

U2 - 10.1159/000067019

DO - 10.1159/000067019

M3 - Article

SN - 0014-3022

VL - 49

SP - 3

EP - 7

JO - European Neurology

JF - European Neurology

IS - 1

ER -

Foramen ovale recordings: A presurgical investigation in epilepsy

Abstract / Description of output

Keywords / Materials (for Non-textual outputs)

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