Is there evidence in the EEG for increased epileptiform activity in ICD-10 acute and transient psychotic disorder?
Stephan Rottig1, Frank Pillmann, Raffaela Bloink
1University Hospital for Psychiatry and Psychotherapy, Martin Luther University Halle-Wittenberg, Halle/Saale, Germany. stephan.roettig@medizin.uni-halle.de
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.
Conclusion:
The hypothesis of a relationship between ATPD and epilepsy could not be confirmed by EEG findings.
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