Psychogenic non-epileptic seizures arising almost exclusively from sleep

Seizures occurring predominantly from sleep provide good evidence for epilepsy, and a nocturnal seizure is duly amongst the major diagnostic criteria for the “first epileptic seizure” [1]. On the other hand, the dictum that psychogenic non-epileptic seizures (PNES) do not occur from sleep is widely accepted by clinical epileptologists and neuropsychiatrists with interest in PNES. Although patients with PNES may often report events arising from sleep [2], video-EEG studies have demonstrated that PNES actually occur during “pseudo-sleep”, i.e., when patients appear asleep, but concurrent EEG shows alpha rhythm [3].

0