Magnetoencephalographic spike sources associated with auditory auras in paediatric localisation-related epilepsy

Journal of Neurology, Neurosurgery, and Psychiatry
I S MohamedO C Snead

Abstract

To characterise magnetoencephalographic spike sources in paediatric patients with auditory auras and recurrent localisation-related epilepsy. Six patients (four boys and two girls (ages 7-14 years) were retrospectively studied. All patients had auditory auras as part of their initial seizure manifestation, including four patients who underwent previous brain surgery. Scalp video electroencephalography and magnetoencephalography (MEG) were carried out in six patients, intraoperative electrocorticography in three patients and extraoperative intracranial video electroencephalography in one patient. MEG auditory-evoked fields (AEFs) were studied in four patients. Three patients had elementary auditory auras, one had complex auditory aura and two had both complex and elementary auras. All six patients had clustered MEG spike sources with coexisting scattered spike sources. MEG clusters were localised in the superior temporal gyrus with surrounding scatters in four patients (two left and two right); two patients had scattered spikes in the superior temporal gyrus in addition to clustered MEG spike sources in the left inferior and middle frontal gyri or parieto-occipital region. AEFs were located within an MEG cluster in one patient a...Continue Reading

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Citations

Mar 29, 2011·The Journal of Laryngology and Otology·F J UddinA Sama
May 9, 2009·Epilepsy Research·Brent ElliottSimon Shorvon
May 17, 2019·Neurocase·Byron BernalMichael Duchowny
Mar 30, 2021·Expert Review of Neurotherapeutics·Hiroshi OtsuboElysa Widjaja

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