Predictive Value of Epileptiform Discharges for Subsequent Epilepsy After Febrile Seizures

Journal of Child Neurology
Alja Kavčič, Zvonka Rener-Primec

Abstract

The predictive value of epileptiform discharges for subsequent epilepsy after febrile seizures was studied in 140 children: 72 children (51%) had simple febrile seizures and 68 children (49%) had complex febrile seizures. Electroencephalography (EEG) was performed in 103 children (74%), it was normal in 66 (47%) and with epileptiform patterns in 37 patients (26%). At follow-up in 2017, 10 children developed epilepsy, 1 had a single epileptic seizure, 9 of them had epileptiform EEGs. Of the patients with normal EEGs after complex febrile seizures, none developed epilepsy, and 92% of patients with normal EEGs after recurrent febrile seizures did not develop epilepsy. Therefore, patients with normal EEGs were unlikely to develop epilepsy. Fifteen percent of patients with complex and 31% of patients with recurrent febrile seizures and epileptiform EEGs developed epileptic seizures. The positive predictive value of epileptiform discharges was low in complex and twice as high in recurrent febrile seizures.

References

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