Peri–ictal psychiatric phenomena

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Peri-ictal symptoms as the prototypic psychiatric phenomena of epilepsy Psychiatric symptoms in epilepsy are classified according to their temporal relation with seizure occurrence. Thus, they are divided into two big classes: interictal and peri-ictal. Interictal symptoms are independent of seizure occurrence. The peri-ictal symptoms are time-locked to the seizure occurrence and hence they are subdivided into symptoms that precede (pre-ictal), follow (postictal), or those that are the expression of the actual seizure (ictal). Peri-ictal psychiatric symptoms have been recognized for a long time; they were described in the writings of Gowers (Gowers 1881) and Hughlings Jackson (1931) in the nineteenth century and by Kraepelin (1923) in the early twentieth century. Peri-ictal symptoms may occur as isolated symptoms (e.g. only auditory hallucinations or irritability) or as a cluster of symptoms that mimic depressive, anxiety, or psychotic episodes, which may (or may not) be associated with cognitive and neurological signs and symptoms. Despite their relatively high prevalence, they are rarely identified by clinicians and hence systematic investigations of peri-ictal psychiatric phenomena are scarce. Furthermore, failure to recognize the nature of these symptoms leads to frequent misdiagnosis (see below) as interictal psychiatric disorders. The purpose of this chapter is to review the most relevant clinical aspects of peri-ictal symptomatology. Pre-ictal psychiatric phenomena It is not unusual for patients to report that they can predict the impending occurrence of their seizure by several hours to up to two days.

Original languageEnglish (US)
Title of host publicationThe Neuropsychiatry of Epilepsy, Second Edition
PublisherCambridge University Press
Pages57-66
Number of pages10
ISBN (Print)9780511977145, 9780521154697
DOIs
StatePublished - Jan 1 2011
Externally publishedYes

Fingerprint

Psychiatry
Stroke
Seizures
Epilepsy
Hallucinations
Diagnostic Errors
Signs and Symptoms
Anxiety
Depression

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Kanner, A. M. (2011). Peri–ictal psychiatric phenomena. In The Neuropsychiatry of Epilepsy, Second Edition (pp. 57-66). Cambridge University Press. https://doi.org/10.1017/CBO9780511977145.007

Peri–ictal psychiatric phenomena. / Kanner, Andres M.

The Neuropsychiatry of Epilepsy, Second Edition. Cambridge University Press, 2011. p. 57-66.

Research output: Chapter in Book/Report/Conference proceedingChapter

Kanner, AM 2011, Peri–ictal psychiatric phenomena. in The Neuropsychiatry of Epilepsy, Second Edition. Cambridge University Press, pp. 57-66. https://doi.org/10.1017/CBO9780511977145.007
Kanner AM. Peri–ictal psychiatric phenomena. In The Neuropsychiatry of Epilepsy, Second Edition. Cambridge University Press. 2011. p. 57-66 https://doi.org/10.1017/CBO9780511977145.007
Kanner, Andres M. / Peri–ictal psychiatric phenomena. The Neuropsychiatry of Epilepsy, Second Edition. Cambridge University Press, 2011. pp. 57-66
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