[P1-65] Right occipital lobe epilepsy with specific reading disorder in Japanese
We report a 9-year-old right handed boy with occipital lobe epilepsy and specific reading disorder(SRD) in Japanese language. He had a normal delivery without perinatal complications and a single simple febrile seizure at 2 years of age. His typical seizure was ictal blindness, eyelid myoclonus, leftward eye deviation and tonic seizure of left limbs since 5 years of age. A high-resolution 3T brain MRI was normal. Interictal FDG-PET demonstrated hypometabolism in right occipital cortex and right temporal lobe. Interictal scalp EEG showed frequent spike waves in right occipital region during awake and sleep. Ictal video-EEG demonstrated low-voltage fast activity in occipital region corresponding to ictal blindness. He was taking carbamazepine and levetiracetam, and had tried other two AEDs. But his visual seizures were not controlled. He had a normal motor and linguistic development until he entered elementary school. But it was revealed that he was reading disability at school. Although he scored a FIQ 96(VCI 93, PRI 106, WMI 91, PSI 94) on WISC-VI, his vocal reaction times when reading a one-syllable kana word was longed. The prevalence of SRD is higher in pediatric patient with epilepsy, especially with left temporal lobe epilepsy. However, there has been few report of occipital lobe epilepsy with SRD. We also discuss the mechanism of SRD caused by occipital lobe epilepsy.