pseudoseizure
Non-epileptic episodes that mimic epileptic seizures but lack the electrical brain activity of true seizures. Now preferably termed psychogenic non-epileptic seizures (PNES).
Full Definition
Pseudoseizure is a traditional term for episodes that clinically resemble epileptic seizures but are not caused by abnormal electrical activity in the brain. These events, now more appropriately called psychogenic non-epileptic seizures (PNES), represent a functional neurological disorder often related to psychological stress, trauma, or underlying psychiatric conditions. Unlike epileptic seizures, pseudoseizures typically show normal EEG activity during episodes and may have features that distinguish them from true seizures, such as gradual onset, side-to-side head movement, pelvic thrusting, or maintained responsiveness. Diagnosis requires video-EEG monitoring to capture episodes and confirm the absence of epileptiform activity. The term 'pseudoseizure' is increasingly discouraged as it may sound dismissive to patients and families.
Usage
Usage note: Consider using 'psychogenic non-epileptic seizures' or 'PNES' in modern clinical documentation to avoid stigmatizing language.
In Context
- "Video-EEG monitoring revealed pseudoseizures with normal interictal and ictal recordings." — Epilepsy monitoring unit report
- "The patient was counseled about the distinction between pseudoseizures and epileptic seizures." — Patient education documentation