2025
Spike Ripples: Hidden Clues to the Mystery of the Epileptogenic Zone
Quraishi I. Spike Ripples: Hidden Clues to the Mystery of the Epileptogenic Zone. Epilepsy Currents 2025, 25: 101-103. PMID: 39780979, PMCID: PMC11705290, DOI: 10.1177/15357597241306610.Commentaries, Editorials and LettersSpike ripplesFast ripplesInterictal biomarkerSurgical resectionEpileptogenic zoneMulticentre cohortResection volumePersistent seizuresEpileptogenic tissueILA-1Ripple rateImproved biomarkersSubjective outcomesEpileptiform spikesProportion of spikesResectionSubdural electrodesBiomarkersEpileptogenicityHigh-frequency oscillationsOutcomesILASubjectsIntracranial electroencephalogramTissue
2024
Networks through the lens of high-frequency oscillations
Herlopian A. Networks through the lens of high-frequency oscillations. Frontiers In Network Physiology 2024, 4: 1462672. PMID: 39679263, PMCID: PMC11638840, DOI: 10.3389/fnetp.2024.1462672.Peer-Reviewed Original ResearchDominant, Lesional Posterior Quadrant Epilepsy
Herlopian A, Tolba H, Mattson R. Dominant, Lesional Posterior Quadrant Epilepsy. 2024, 757-777. DOI: 10.1007/978-3-031-23828-4_31.Peer-Reviewed Original ResearchIctal high-frequency oscillationsPeriventricular nodular heterotopiaPredicting surgical outcomesSurgical decision-making processFocal cortical dysplasiaPropagation of seizuresInterictal epileptiform dischargesThermoablative therapyNodular heterotopiaSurgical outcomesCortical dysplasiaIctal patternsCortical malformationsEpileptiform dischargesIntracranial monitoringPharmacoresistant epilepsyClonic movementsIctal vocalizationSpeech disturbanceCephalic auraTherapyPatientsHigh-frequency oscillationsNon-dominant, Lesional Neocortical Temporal Lobe Epilepsy
Herlopian A. Non-dominant, Lesional Neocortical Temporal Lobe Epilepsy. 2024, 105-134. DOI: 10.1007/978-3-031-23828-4_6.Peer-Reviewed Original ResearchVacuolating neuronal tumorInterictal high-frequency oscillationsDysembryoplastic neuroepithelial tumorEpileptic networkSurgical decision-making processFocal cortical dysplasiaNeuroepithelial tumorsNeuronal tumorsRadiological findingsCortical dysplasiaClinical manifestationsIctal semiologyPharmacoresistant epilepsyDystonic posturingTumorHigh-frequency oscillations
2023
Delayed effective connectivity characterizes the epileptogenic zone during stereo-EEG
Feys O, Wens V, Rovai A, Schuind S, Rikir E, Legros B, De Tiège X, Gaspard N. Delayed effective connectivity characterizes the epileptogenic zone during stereo-EEG. Clinical Neurophysiology 2023, 158: 59-68. PMID: 38183887, DOI: 10.1016/j.clinph.2023.12.013.Peer-Reviewed Original ResearchSingle-pulse electrical stimulationEpileptogenic zoneRefractory focal epilepsyEffective connectivityEffective connectivity changesResection limitsEpileptogenic networksFocal epilepsyAbnormal responseCortico-subcorticoCortical levelElectrical stimulationStereo-EEGPatientsDepth electrodesConnectivity changesStereoelectroencephalographyAnalysis of varianceCharacteristic curveOccurrence of spikesCCEPsStimulationHigh-frequency oscillationsAssociationResponse
2014
The spatial and signal characteristics of physiologic high frequency oscillations
Alkawadri R, Gaspard N, Goncharova II, Spencer DD, Gerrard JL, Zaveri H, Duckrow RB, Blumenfeld H, Hirsch LJ. The spatial and signal characteristics of physiologic high frequency oscillations. Epilepsia 2014, 55: 1986-1995. PMID: 25470216, PMCID: PMC5123742, DOI: 10.1111/epi.12851.Peer-Reviewed Original ResearchConceptsPhysiologic high-frequency oscillationsSeizure onsetEpileptic networkNon-rapid eye movement sleepComprehensive Epilepsy CenterMesial temporal structuresEye movement sleepHigh-frequency oscillationsHighest HFO ratesFirst seizureInvasive evaluationEpilepsy centersIntracranial evaluationMovement sleepPerirolandic regionEpileptiform dischargesParietooccipital regionOccipital lobeEpileptic sitesPatientsNonepileptic regionsPhysiologic eventsFast ripplesHFO ratesLonger duration
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