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  • Title: Characterization of childhood-onset complex partial seizures associated with autism spectrum disorder.
    Author: Matsuo M, Maeda T, Ishii K, Tajima D, Koga M, Hamasaki Y.
    Journal: Epilepsy Behav; 2011 Mar; 20(3):524-7. PubMed ID: 21310667.
    Abstract:
    Autism spectrum disorder (ASD) has a close relationship with epilepsy. A previous study showed complex partial seizures (CPS) to be the most frequent type of epileptic seizures in cases of ASD. Patients with childhood-onset CPS were retrospectively studied to investigate the prevalence of ASD and to characterize the association between CPS and ASD. The study cohort comprised 86 patients with CPS manifesting at 1 to 9 years of age. Symptomatic CPS and Panayiotopoulos syndrome were excluded. Patients with ASD (ASD group) were compared with those without ASD (non-ASD group). Of the 86 patients with childhood-onset CPS, 36 (42%) also had ASD. This ASD group was predominantly male (68.6%), with higher rates of intellectual disability (69%), and reported frequent seizures (60% had monthly or more frequent seizures). CPS without secondary generalization were more common in the ASD group (69%) than in the non-ASD group (36%), as were frontal paroxysms on EEG (54.5% vs 30%, respectively). In the non-ASD group, 82% of cases had been seizure free for 2 or more years, in comparison to 50% in the ASD group. ASD is frequently associated with childhood-onset CPS. Male gender, cognitive deficits, frequent seizures, and frontal paroxysms are risk factors for the association of ASD with CPS.
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