Summary:Purpose: Benign rolandic epilepsy (BRE) has an excellent prognosis for seizures, but recent research has raised concerns using cognition as an outcome measure. Methodologic problems related to recruitment bias and assessment processes are evident in previous studies. With well-defined criteria for inclusion and comprehensive assessment, the aim of this study was to define the cognitive profile of children with BRE and to assess the effect of interictal EEG activity.Methods: Patients (n = 42) were recruited from six EEG laboratories. The EEG features analyzed were spike frequency, trains, and laterality. Comprehensive neuropsychological and language assessments were conducted. Group means on cognitive measures were compared with normative means. Tests were correlated with EEG features.Results: The study demonstrated that children with BRE have normal intelligence and language ability. However, a specific pattern of difficulties in memory and phonologic awareness was found. Furthermore, a large proportion of children had disproportionate scores in these areas compared with intellectual and language ability. EEG features were minimally associated with cognitive difficulties, and no correlation was found with memory indices and tests of phonologic awareness.Conclusions: Some children with BRE have specific difficulties in memory and phonologic processing skills, not explained by interictal activity. We recommend that pediatricians ask about academic performance specifically in areas of prereading, reading, spelling, and memory. If difficulties are suspected, assessment targeting phonologic awareness and memory are recommended, as they may not be reflected in overall intellectual and language ability. Difficulties in phonologic awareness affect literacy, and memory problems affect academic performance.

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Previous studies of benign rolandic epilepsy have reported improvement in cognitive functioning over time. Their focus was the impact of paroxysmal electroencephalographic (EEG) activity on neuropsychologic function. Comprehensive longitudinal language assessment has not previously been undertaken. In a cross-sectional study, we demonstrated that some children with benign rolandic epilepsy have difficulties in verbal and visual memory and phonologic awareness. The current study evaluated a subgroup longitudinally to determine if difficulties improved. Twenty-eight patients underwent comprehensive longitudinal neuropsychologic and language assessments. The clinical features evaluated included seizure frequency, absolute age, medications, and a follow-up EEG. Differences in performance were analyzed using t-tests. Improvement in cognitive functioning, particularly in the areas of verbal memory, receptive language ability, and phonemic manipulation, was demonstrated. Visual memory and aspects of phonologic awareness showed no change. The improvements were not related to the clinical variables. It is important to recognize cognitive difficulties in children with benign rolandic epilepsy. Some difficulties can resolve; however, continued monitoring, particularly in areas of visual memory and phonologic awareness, is required.

A 5-year-old boy presented with typical clinical and electrophysiologic features of benign rolandic epilepsy. His neurodevelopment, language, and behavior prior to the onset of epilepsy were appropriately normal. He demonstrated marked deterioration of language and cognitive function during the course to a mild and then a moderate disability range. Serial sleep electroencephalographic recordings initially showed continuous and bilateral rolandic discharges with evolution to localized left rolandic spikes. Language and cognitive improvements were subsequently seen. Educational support and evolution of the electroencephalogram to a localized focus could have been contributory. It is anticipated, however, that he will have significant long-term problems in complex language.

H J Yeomans and J McIntyre discuss the management of epilepsy and the importance of awareness within residential and nursing home settings.

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