PURPOSE To determine safety and efficacy of hyperventilation (HV) during electroencephalography (EEG). METHODS We report the findings of a prospective multicentre National Service Evaluation of the occurrence of adverse events, seizures and interictal epileptiform discharges seen in association with HV during EEG, in a relatively unselected, largely out patient population of 3475 being invest...

BACKGROUND Epileptic seizures (ES) lead to alterations in the blood laboratory values and reflect changes in different organ systems. Here, we review the diagnostic and prognostic value of various blood laboratory values within the context of epilepsy. METHODS Narrative review and literature search on PubMed using the term, "seizure" and various laboratory values. RESULTS Laboratory markers...

Psychogenic seizures (PSs) convincingly mimic seizure phenomena but with no underlying epileptic activity. However, not much is known about their neurophysiological basis. We had the rare opportunity to analyze intracranial brain recordings of PSs occurring besides epileptic seizures (ESs), which identified distinct frequency changes over the parietal cortex. For further validation, we applied ...

A 48-year-old male was diagnosed with both drug resistant epilepsy and psychogenic nonepileptic seizures. Both diagnoses were confirmed by video-EEG monitoring. His epileptic seizures were a consequence of right mesial temporal sclerosis. He was diagnosed by a psychiatrist to have depression and posttraumatic stress disorder (PTSD). Following a right anterior temporal resection he became seizur...

Psychogenic nonepileptic seizures (PNES) are relatively common occurrences in epilepsy centers [1]. These seizures consist of paroxysmal changes in responsiveness, movements, or behavior that superficially resemble epileptic seizures, but lack a neurobiological origin as in epileptic seizures and are not associated with electrophysiological epileptic changes [1]. It is clear that PNES lack a ne...