This completed retrospective observational study evaluated adult patients diagnosed with psychogenic nonepileptic seizures (PNES) who underwent video-EEG monitoring. Video-EEG records and clinical data of 50 adult patients were reviewed to describe semiological, electroclinical, and demographic characteristics of PNES. The study aimed to improve the understanding of video-EEG findings in PNES and to support accurate diagnosis in clinical practice.
Psychogenic nonepileptic seizures (PNES) are paroxysmal events that resemble epileptic seizures but are not associated with ictal epileptiform activity on EEG. Video-EEG monitoring is considered the reference standard for diagnosis. In this retrospective observational study, video-EEG recordings and clinical files of 50 adult patients with PNES were reviewed after completion of clinical care. Demographic data, clinical presentation, and video-EEG characteristics were analyzed descriptively. No intervention was assigned as part of the study. The purpose was to characterize the video-EEG and clinical profile of adult PNES patients evaluated in routine practice.
Study Type
OBSERVATIONAL
Enrollment
50
Saglik Bilimleri University Izmir Faculty of Medicine Department of Neurology
Izmir, Turkey (Türkiye)
Semiological subtype of PNES events
Classification of PNES events recorded during video-EEG monitoring into semiological clusters (pauci-kinetic, hyperkinetic, hyperventilation-eye closure) based on ictal features.
Time frame: Baseline retrospective chart and video-EEG review
Presence/absence of some events during PNES events
Eye closure during PNES events Hyperventilation during PNES events Hyperkinetic motor activity Axial extension Pelvic thrusting
Time frame: Baseline
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