2022年5月27日
Abnormal heart rate variability during non-REM sleep and postictal generalized EEG suppression in focal epilepsy.
Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology
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- 巻
- 140
- 号
- 開始ページ
- 40
- 終了ページ
- 44
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.clinph.2022.05.011
OBJECTIVE: To identify any relationship between abnormal interictal heart rate variability (HRV) during sleep and the occurrence of postictal generalized EEG suppression (PGES), a potential biomarker of sudden unexpected death in epilepsy (SUDEP), in patients with focal epilepsy. METHODS: We retrospectively reviewed 34 consecutive patients with focal epilepsy, who presented with focal to bilateral tonic-clonic seizures (FBTCSs), 19 with PGES (PGES+) and 15 without PGES (PGES-), and 14 patients without epilepsy as controls. HRV spectrum analysis was performed for periods of 10 minutes during wakefulness, non-REM sleep, and REM sleep. HRV spectra consisted of high frequency (HF) and low frequency (LF) regions. Normalized HF representing parasympathetic activities and normalized LF were compared between the PGES+, PGES-, and control groups for each sleep stage. RESULTS: The PGES+ group showed significantly decreased normalized HF and increased normalized LF during non-REM sleep compared to the PGES- (P < 0.05) and control (P < 0.01) groups, but not during wakefulness or REM sleep. CONCLUSIONS: Abnormal interictal HRV during non-REM sleep, indicating abnormally decreased parasympathetic activities, was associated with PGES in patients with FBTCS. SIGNIFICANCE: This study proposes to further investigate the relation between decreased parasympathetic activities and PGES.
- リンク情報
- ID情報
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- DOI : 10.1016/j.clinph.2022.05.011
- PubMed ID : 35689915