Interrater agreement on classification of photoparoxysmal electroencephalographic response

Our goal was to assess the interrater agreement (IRA) of photoparoxysmal response (PPR) using the classification proposed by a task force of the International League Against Epilepsy (ILAE), and a simplified classification system proposed by our group. In addition, we evaluated IRA of epileptiform discharges (EDs) and the diagnostic significance of the electroencephalographic (EEG) abnormalities. We used EEG recordings from the European Reference Network (EpiCARE) and Standardized Computer-based Organized Reporting of EEG (SCORE). Six raters independently scored EEG recordings from 30 patients. We calculated the agreement coefficient (AC) for each feature. IRA of PPR using the classification proposed by the ILAE task force was only fair (AC = 0.38). This improved to a moderate agreement by using the simplified classification (AC = 0.56;P = .004). IRA of EDs was almost perfect (AC = 0.98), and IRA of scoring the diagnostic significance was moderate (AC = 0.51). Our results suggest that the simplified classification of the PPR is suitable for implementation in clinical practice.

MEDICIN OCH HÄLSOVETENSKAP Medicinska och farmaceutiska grundvetenskaper Neurovetenskaper hsv//swe
MEDICAL AND HEALTH SCIENCES Basic Medicine Neurosciences hsv//eng
electroencephalography
epilepsy
epileptiform discharges
intermittent
photic stimulation
IRA
SCORE
eeg
epilepsy
Neurosciences & Neurology

Aurlien, H. (author)
Franceschetti, S. (author)
da Silva, A. M. (author)
Bisulli, F. (author)
Bentes, C. (author)
Canafoglia, L. (author)
Ferri, L. (author)
Krysl, DavidGothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi,Institute of Neuroscience and Physiology(Swepub:gu)xkryda (author)
Peralta, A. R. (author)
Racz, A. (author)
Cross, J. H. (author)
Arzimanoglou, A. (author)
Göteborgs universitetInstitutionen för neurovetenskap och fysiologi (creator_code:org_t)

By the author/editor: Beniczky, S.; Aurlien, H.; Franceschetti, S ...; da Silva, A. M.; Bisulli, F.; Bentes, C.; show more...; Canafoglia, L.; Ferri, L.; Krysl, David; Peralta, A. R.; Racz, A.; Cross, J. H.; Arzimanoglou, A.; show less...

About the subject

MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Basic Medicine; and Neurosciences

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