HFA analysis using scalp electroencephalograms in two cases of Rasmussen's syndrome
Copyright © 2023 Elsevier B.V. All rights reserved..
OBJECTIVE: In recent years, wide-band EEGs have been used to assess brain activity, and their effectiveness in the pathological analysis of epilepsy has been demonstrated. This report describes two cases of Rasmussen's syndrome (RS) in which high-frequency scalp EEGs were retrospectively analyzed to assess the pathological condition of epilepsy in RS.
METHODS: The two RS cases were divided into three periods: incipient, stable, and frequent seizure periods. Using the EEG record of each period, interictal epileptiform discharges (IEDs) were visually extracted. Subsequently, a time-frequency analysis was performed to calculate the rate of high-frequency activities (HFAs) (IED-HFA rate). Finally, differences between the three periods were examined.
RESULTS: IED-HFA rates significantly increased in the frequent seizure period compared with the stable period in both cases(P < 0.05).
CONCLUSION: there was a significant increase in HFAs superimposed over IEDs during the frequent seizure period compared to the stable period. HFAs are thought to be associated with epileptogenicity. Similarly, HFAs could be a useful biomarker for the pathological condition of epilepsy in RS.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:196 |
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| Enthalten in: |
Epilepsy research - 196(2023) vom: 01. Okt., Seite 107205 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Tani, Hiroo [VerfasserIn] |
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| Links: |
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| Themen: |
Biomarker |
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| Anmerkungen: |
Date Completed 25.09.2023 Date Revised 25.09.2023 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.eplepsyres.2023.107205 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM361097778 |
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| 100 | 1 | |a Tani, Hiroo |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a HFA analysis using scalp electroencephalograms in two cases of Rasmussen's syndrome |
| 264 | 1 | |c 2023 | |
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| 500 | |a Date Completed 25.09.2023 | ||
| 500 | |a Date Revised 25.09.2023 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2023 Elsevier B.V. All rights reserved. | ||
| 520 | |a OBJECTIVE: In recent years, wide-band EEGs have been used to assess brain activity, and their effectiveness in the pathological analysis of epilepsy has been demonstrated. This report describes two cases of Rasmussen's syndrome (RS) in which high-frequency scalp EEGs were retrospectively analyzed to assess the pathological condition of epilepsy in RS | ||
| 520 | |a METHODS: The two RS cases were divided into three periods: incipient, stable, and frequent seizure periods. Using the EEG record of each period, interictal epileptiform discharges (IEDs) were visually extracted. Subsequently, a time-frequency analysis was performed to calculate the rate of high-frequency activities (HFAs) (IED-HFA rate). Finally, differences between the three periods were examined | ||
| 520 | |a RESULTS: IED-HFA rates significantly increased in the frequent seizure period compared with the stable period in both cases(P < 0.05) | ||
| 520 | |a CONCLUSION: there was a significant increase in HFAs superimposed over IEDs during the frequent seizure period compared to the stable period. HFAs are thought to be associated with epileptogenicity. Similarly, HFAs could be a useful biomarker for the pathological condition of epilepsy in RS | ||
| 650 | 4 | |a Case Reports | |
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Biomarker | |
| 650 | 4 | |a EEG | |
| 650 | 4 | |a Epileptogenicity | |
| 650 | 4 | |a High-frequency activities | |
| 650 | 4 | |a IED-HFA rate | |
| 650 | 4 | |a Rasmussen syndrome | |
| 700 | 1 | |a Tateishi, Yuichi |e verfasserin |4 aut | |
| 700 | 1 | |a Kobayashi, Yoshiyuki |e verfasserin |4 aut | |
| 700 | 1 | |a Ishikawa, Nobutsune |e verfasserin |4 aut | |
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