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Breach rhythm-induced asymmetric post-arousal hypersynchrony mimicking ictal EEG in coma
Philippe Gelisse1,2, Arielle Crespel1,2
1Epilepsy Unit, Hôpital Gui de Chauliac, Montpellier, France.
Clinical Neurophysiology Practice
|November 28, 2025
Summary
Stimulation-induced EEG patterns in ICU patients can be mistaken for seizures. Recognizing normal arousal phenomena, like awakening hypersynchrony, is crucial to avoid misdiagnosing nonconvulsive status epilepticus (NCSE).
Area of Science:
- Neuroscience
- Clinical Neurophysiology
- Intensive Care Medicine
Background:
- Misinterpretation of electroencephalogram (EEG) patterns in intensive care unit (ICU) patients can lead to incorrect diagnoses.
- Distinguishing between seizure activity and stimulation-induced EEG changes is critical for patient management.
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