Electroencephalogram abnormalities in patients with NREM parasomnias

Electroencephalogram abnormalities in patients with NREM parasomnias

Electroencephalographic (EEG) changes in patients with NREM parasomnias (NRP) occur in sleep architecture as changes in slow wave sleep or cyclic pattern, which are not considered abnormal. However, abnormalities in EEG in these patients have recently been reported, indicating that EEG patterns in N...

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Veröffentlicht in:Sleep medicine 2021-01, Vol.77, p.256-260
Hauptverfasser: Sarilar, Ayse Caglar, Ismailogullari, Sevda, Yilmaz, Rezzak, Erdogan, Füsun Ferda, Per, Hüseyin
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Electroencephalography
Non-REM parasomnia
Polysomnography
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container_issue
container_start_page 256
container_title Sleep medicine
container_volume 77
creator Sarilar, Ayse Caglar
Ismailogullari, Sevda
Yilmaz, Rezzak
Erdogan, Füsun Ferda
Per, Hüseyin
description Electroencephalographic (EEG) changes in patients with NREM parasomnias (NRP) occur in sleep architecture as changes in slow wave sleep or cyclic pattern, which are not considered abnormal. However, abnormalities in EEG in these patients have recently been reported, indicating that EEG patterns in NRPs are not definitive. Moreover, most of the polysomnography (PSG) findings in NRP patients were reported in the adult population requiring data from pediatric population to avoid bias in conclusion. In sum, 39 patients with a NRP were undergone comprehensive assessments including a PSG with additional EEG montages. EEG recordings were evaluated in patients without a history of epilepsy and further compared between pediatric and adult patients. Twenty-three (59%) of the patients were pediatric and 77% were male. The mean age was 18.4 (±13.1) years. Of the patients, 19 (49%) had somnambulism, 13 (33%) had confusional arousal and seven (18%) had sleep terrors. Macrostructure of sleep detected by PSG was normal in all patients. After excluding 11 (28%) patients with a positive history of epilepsy, seven (25%) of 28 showed EEG abnormalities within K-complexes in NREM-II stage, six of whom were pediatric patients compared to only one adult (p 
doi_str_mv 10.1016/j.sleep.2019.05.009
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However, abnormalities in EEG in these patients have recently been reported, indicating that EEG patterns in NRPs are not definitive. Moreover, most of the polysomnography (PSG) findings in NRP patients were reported in the adult population requiring data from pediatric population to avoid bias in conclusion. In sum, 39 patients with a NRP were undergone comprehensive assessments including a PSG with additional EEG montages. EEG recordings were evaluated in patients without a history of epilepsy and further compared between pediatric and adult patients. Twenty-three (59%) of the patients were pediatric and 77% were male. The mean age was 18.4 (±13.1) years. Of the patients, 19 (49%) had somnambulism, 13 (33%) had confusional arousal and seven (18%) had sleep terrors. Macrostructure of sleep detected by PSG was normal in all patients. After excluding 11 (28%) patients with a positive history of epilepsy, seven (25%) of 28 showed EEG abnormalities within K-complexes in NREM-II stage, six of whom were pediatric patients compared to only one adult (p &lt; 0.05). This study showed that patients with NRP may display EEG abnormalities in NREM-II stage. These abnormalities were more frequent in pediatric patients compared to adults. In NRP patients, utmost care should be taken in EEG evaluations to prevent false diagnosis of epilepsy. •NREM parasomnias may display EEG abnormalities within the K-complexes in NREM-II stage sleep.•These abnormalities were more frequent in pediatric patients compared to adults.•EEGs in patients with NREM parasomnias should be evaluated with caution in order to avoid false diagnosis of epilepsy.</description><identifier>ISSN: 1389-9457</identifier><identifier>EISSN: 1878-5506</identifier><identifier>DOI: 10.1016/j.sleep.2019.05.009</identifier><identifier>PMID: 31591021</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>Electroencephalography ; Non-REM parasomnia ; Polysomnography</subject><ispartof>Sleep medicine, 2021-01, Vol.77, p.256-260</ispartof><rights>2019 Elsevier B.V.</rights><rights>Copyright © 2019 Elsevier B.V. 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subjects Electroencephalography
Non-REM parasomnia
Polysomnography
title Electroencephalogram abnormalities in patients with NREM parasomnias
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