Key result
Epileptic seizures significantly increased heart rate, SDANN, SD1, and SD1/SD2 ratio, and decreased VLF power compared to pre-ictal levels, demonstrating distinct autonomic patterns from PNES.
Observational (n=37)
No
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May support seizure-type differentiation via HRV in monitored settings; leaves open prospective validation before clinical adoption.
Objective: Little is known about the (peri-) ictal changes in autonomic nervous system activity of epileptic seizures. Such information may be useful for seizure prediction paradigms and differential diagnosis between epilepsy and psychogenic non-epileptic seizures (PNES). The current study investigated the peri-ictal time course of heart rate variability (HRV) measures, which reflect autonomic nervous system functioning.
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van der Kruijs SJM (2014) conducted an observational in Epilepsy and Psychogenic Non-Epileptic Seizures (PNES) (n=37). Epileptic seizures (peri-ictal state) vs. Pre-ictal baseline and PNES episodes was evaluated on Ictal heart rate (HR) in epilepsy compared to pre-ictal baseline (p=0.003). Epileptic seizures significantly increased heart rate, SDANN, SD1, and SD1/SD2 ratio, and decreased VLF power compared to pre-ictal levels, demonstrating distinct autonomic patterns from PNES.
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