Childhood Febrile Convulsions And Development Of Subsequent Epilepsy Syndromes

Background: Febrile convulsions (FCs) are a common phenomenon in childhood, but their role in the development of epilepsy remains complex. This study aimed to analyze the relative contribution of risk factors for epilepsy in children who had childhood FCs, with a specific focus on distinguishing between temporal lobe epilepsy (TLE) and generalized epilepsy (GE). Methods: A retrospective study was conducted at the Neuropediatric Unit of Al-Azhar University Hospital, Assuit, involving 50 patients aged 2 to 16 years who had epilepsy and a history of febrile convulsions. Clinical features, laboratory tests, EEG, and MRI findings were analyzed to identify factors that differentiate TLE from GE. Results: Among the 50 patients, 56% were diagnosed with TLE and 44% with GE. The mean age at the first FC was 14.16 ± 6.63 months. Significant differences were found in clinical features and neuroimaging results between the two epilepsy syndromes. TLE was more frequently associated with temporal lobe sclerosis on MRI (12%) and epileptiform activity on EEG (30%), while GE was correlated with longer febrile status epilepticus duration (42.74 ± 6.86 minutes). Age at the first FC (P = 0.0004) and family history of epilepsy (P = 0.046) were significant distinguishing factors between TLE and GE. Conclusions: Clinical features of FCs, particularly age at onset and family history, along with neuroimaging and EEG findings, can help predict the type of epilepsy that may develop. TLE and GE exhibit distinct clinical and neurophysiological characteristics, which may aid in early differentiation and management.