Psychogenic Non-Epileptic Seizures (PNES)

Psychogenic Non-Epileptic Seizures (PNES), also known as pseudoseizures are episodes of movement, sensation, or behaviours that are similar to epileptic seizures but with no neurologic origins. It is considered a form of conversion disorder, as there are somatic manifestations of psychologic distress. Patients with psychogenic nonepileptic seizures frequently are misdiagnosed and treated for epilepsy.

Anywhere from 5-10% of outpatient epilepsy patients and 20-40% of inpatient epilepsy patients have psychogenic nonepileptic seizures.

  • Video-electroencephalography monitoring is preferred for diagnosis
  • The drop-arm test can be helpful as clinical clue[1]