Is there evidence in the EEG for increased epileptiform activity in ICD-10 acute and transient psychotic disorder?
BACKGROUND
The aim of this study was to examine whether there is electroencephalographic evidence for an increased epileptiform activity in the EEG of ICD-10 acute and transient psychotic disorders (ATPD; F23) as a hint for a closer relationship to epilepsy.


METHODS
We analyzed the EEGs of 39 inpatients with ATPD, comparing them with 'positive' schizophrenic and bipolar schizoaffective controls matched for age and gender. The evaluation was performed visually and qualitatively using a rating scale of demonstrated reliability.


RESULTS
We found no indication of an increased incidence of epileptiform discharges in ATPD compared with 'positive' schizophrenic and bipolar schizoaffective controls.


CONCLUSIONS
The hypothesis of a relationship between ATPD and epilepsy could not be confirmed by EEG findings.
Rottig
Stephan
S
University Hospital for Psychiatry and Psychotherapy, Martin Luther University Halle-Wittenberg, Halle/Saale, Germany. stephan.roettig@medizin.uni-halle.de
Pillmann
Frank
F
Bloink
Raffaela
R
Haring
Annette
A
Marneros
Andreas
A
D000208:Acute Disease; D000328:Adult; D001714:Bipolar Disorder / Q000453:epidemiology / Q000523:psychology; D004569:Electroencephalography; D004827:Epilepsy / Q000175:diagnosis* / Q000453:epidemiology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D038801:International Classification of Diseases; D008297:Male; D011446:Prospective Studies; D011618:Psychotic Disorders / Q000175:diagnosis* / Q000453:epidemiology / Q000523:psychology*; D012559:Schizophrenia / Q000453:epidemiology; D012565:Schizophrenic Psychology