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Gefferie SR, Ossenblok PPW, Dietze CS, Sargsyan A, Bourez-Swart M, van den Maagdenberg AMJM, Thijs RD. Detection of short-lasting and ictal spike-and-wave discharges in around-the-ears EEG recordings in children with absence epilepsy. Epilepsy Res 2024; 204:107385. [PMID: 38851173 DOI: 10.1016/j.eplepsyres.2024.107385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/23/2024] [Accepted: 05/29/2024] [Indexed: 06/10/2024]
Abstract
PURPOSE Long-term ambulatory EEG recordings can improve the monitoring of absence epilepsy in children, but signal quality and increased review workload are a concern. We evaluated the feasibility of around-the-ears EEG arrays (cEEGrids) to capture 3-Hz short-lasting and ictal spike-and-wave discharges and assessed the performance of automated detection software in cEEGrids data. We compared patterns of bilateral synchronisation between short-lasting and ictal spike-and-wave discharges. METHODS We recruited children with suspected generalised epilepsy undergoing routine video-EEG monitoring and performed simultaneous cEEGrids recordings. We used ASSYST software to detect short-lasting 3-Hz spike-and-wave discharges (1-3 s) and ictal spike-and-wave discharges in the cEEGrids data. We assessed data quality and sensitivity of cEEGrids for spike-and-wave discharges in routine EEG. We determined the sensitivity and false detection rate for automated spike-and-wave discharge detection in cEEGrids data. We compared bihemispheric synchrony across the onset of short-lasting and ictal spike-and-wave discharges using the mean phase coherence in the 2-4 Hz frequency band. RESULTS We included nine children with absence epilepsy (median age = 11 y, range 8-15 y, nine females) and recorded 4 h and 27 min of cEEGrids data. The recordings from seven participants were suitable for quantitative analysis, containing 82 spike-and-wave discharges. The cEEGrids captured 58 % of all spike-and-wave discharges (median individual sensitivity: 100 %, range: 47-100 %). ASSYST detected 82 % of all spike-and-wave discharges (median: 100 %, range: 41-100 %) with a false detection rate of 48/h (median: 6/h, range: 0-154/h). The mean phase coherence significantly increased during short-lasting and ictal spike-and-wave discharges in the 500-ms pre-onset to 1-s post-onset interval. CONCLUSIONS cEEGrids are of variable quality for monitoring spike-and-wave discharges in children with absence epilepsy. ASSYST could facilitate the detection of short-lasting and ictal spike-and-wave discharges with clear periodic structures but with low specificity. A similar course of bihemispheric synchrony between short-lasting and ictal spike-and-wave discharges indicates that cortico-thalamic driving may be relevant for both types of spike-and-wave discharges.
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Affiliation(s)
- Silvano R Gefferie
- Department of Clinical Neurophysiology (location Zwolle & Heemstede), Stichting Epilepsie Instellingen Nederland (SEIN), Achterweg 5, Heemstede, SW 2103, the Netherlands; Department of Neurology, Leiden University Medical Centre, Albinusdreef 2, Leiden, RC 2300, the Netherlands
| | - Pauly P W Ossenblok
- Department of Clinical Neurophysiology (location Zwolle & Heemstede), Stichting Epilepsie Instellingen Nederland (SEIN), Achterweg 5, Heemstede, SW 2103, the Netherlands; Clinical Neuro-Science projects, De Wittenkade 283, Amsterdam, DD 1052, the Netherlands
| | - Christoph S Dietze
- Department of Clinical Neurophysiology (location Zwolle & Heemstede), Stichting Epilepsie Instellingen Nederland (SEIN), Achterweg 5, Heemstede, SW 2103, the Netherlands
| | - Armen Sargsyan
- Orbeli Institute of Physiology, 22 Orbeli Bros. str 0028, Yerevan, Armenia; Kaoskey Pty. Ltd., Unit 6, 3 Central Ave, Sydney, Australia
| | - Mireille Bourez-Swart
- Department of Clinical Neurophysiology (location Zwolle & Heemstede), Stichting Epilepsie Instellingen Nederland (SEIN), Achterweg 5, Heemstede, SW 2103, the Netherlands
| | - Arn M J M van den Maagdenberg
- Department of Neurology, Leiden University Medical Centre, Albinusdreef 2, Leiden, RC 2300, the Netherlands; Department of Human Genetics, Leiden University Medical Centre, Albinusdreef 2, Leiden, RC 2300, the Netherlands
| | - Roland D Thijs
- Department of Clinical Neurophysiology (location Zwolle & Heemstede), Stichting Epilepsie Instellingen Nederland (SEIN), Achterweg 5, Heemstede, SW 2103, the Netherlands; Department of Neurology, Leiden University Medical Centre, Albinusdreef 2, Leiden, RC 2300, the Netherlands; Department of Clinical & Experimental Epilepsy, UCL Queen Square Institute of Neurology, London WC1N 3BG, United Kingdom.
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Berchio C, Micali N. Cognitive assessment using ERP in child and adolescent psychiatry: Difficulties and opportunities. Psychiatry Res Neuroimaging 2022; 319:111424. [PMID: 34883368 DOI: 10.1016/j.pscychresns.2021.111424] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 11/28/2021] [Accepted: 11/29/2021] [Indexed: 02/07/2023]
Abstract
Event related potentials (ERPs) represent powerful tools to investigate cognitive functioning in child and adolescent psychiatry. So far, the available body of research has largely focused on advancements in analysis methods, with little attention given to the perspective of assessment. The aim of this brief report is to provide recommendations for cognitive ERPs assessment that can be applied across diagnostic categories in child and adolescent psychiatry research. First, we discuss major issues for ERPs testing using examples from common psychiatric disorders. We conclude by summing up our recommendations for methodological standards and highlighting the potential role of ERPs in the field.
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Affiliation(s)
- Cristina Berchio
- Department of Psychiatry, Faculty of Medicine, University of Geneva, Geneva, Switzerland.
| | - Nadia Micali
- Department of Psychiatry, Faculty of Medicine, University of Geneva, Geneva, Switzerland; Division of Child and Adolescent Psychiatry, Department of Child and Adolescent Health, Geneva University Hospital, Geneva, Switzerland; Great Ormond Street Institute of Child Health, University College London, London, UK
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