Surface-electromyography characteristics of clonic seizures with no scalp-EEG correlate: A comparative analysis with tremors.

ABSTRACT:

Introduction

Clonic seizures are characterized by twitching movements at a frequency of 0.2-5 Hz. The clonic "twitch" is produced by a brief synchronized contraction of agonist and antagonist muscles, followed by a synchronized silent period. In this study, we aimed to compare the surface-electromyography (sEMG) characteristics of scalp-EEG negative clonic seizures with those of nonepileptic movements like tremors that can resemble clonic seizures.

Methods

We retrospectively identified patients who were diagnosed with scalp-EEG negative clonic seizures or tremors. We only included patients (n = 6) who were monitored simultaneously with video-EEG and sEMG electrodes. sEMG was placed on agonist and antagonist muscles of the affected extremity using a standardized placement sys

SUBMITTER: Kumar VV 

PROVIDER: S-EPMC12398199 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature