Akademik Veri Yönetim Sistemi
JOURNAL OF AUTISM AND DEVELOPMENTAL DISORDERS, 2026 (SSCI, Scopus)
Objective This study investigated the association between epilepsy and findings from neurological evaluations, including electroencephalography (EEG), neuroimaging, genetic testing, and developmental assessments, in children with Autism Spectrum Disorder (ASD). Methods Ninety-nine children with ASD (DSM-5-TR) were retrospectively evaluated at a tertiary center between 2012 and 2021. Data included demographics, EEG, neuroimaging, genetic testing, and developmental assessments. Results The cohort was predominantly male (76.8%), with a mean age of 10.2 +/- 4.7 years. EEG was performed in 51 patients, with abnormalities detected in 43.1%. Epilepsy was diagnosed in 22.2% (n = 22). Among 42 patients who underwent chromosomal microarray analysis, pathogenic variants were identified in 52.4%. Chi-square analysis showed significant associations between epilepsy and abnormal EEG findings (chi & sup2;=45.45, p < 0.001) and pathogenic variants (chi & sup2;=7.68, p = 0.006), but not gender (p = 0.823) or intellectual disability (p = 0.691). Logistic regression identified abnormal EEG findings as the strongest independent predictor of epilepsy (OR = 48.96, 95% CI: 12.90-190.97), followed by pathogenic variants (OR = 4.38, 95% CI: 1.64-12.10). EEG abnormalities were present in 77.3% of patients with seizures and 6.4% of those without seizures. Conclusion EEG abnormalities and epilepsy are highly prevalent in children with ASD. Abnormal EEG findings and pathogenic genetic variants were strong independent predictors of epilepsy in our cohort. EEG should be strongly considered in children with ASD, particularly those with seizures, developmental regression, unexplained paroxysmal events or pathogenic genetic variants. Prospective studies are needed to determine whether broader, potentially routine EEG at diagnosis is warranted in terms of diagnostic yield, cost-effectiveness and long-term outcomes.