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Benign childhood epilepsy with centro-temporal spikes: evolutive clinical, cognitive and EEG aspects
Glória M A S Tedrus1, Lineu C Fonseca, Dioraci P Castilho
1Pontifícia Universidade Católica de Campinas, Campinas, SP, Brazil. gmtedrus@uol.com.br
Insights
Benign childhood epilepsy with centrotemporal spikes (BECTS) can improve cognitive abilities, particularly IQ, although some children experience worsening arithmetic skills linked to persistent seizures. Further research is needed to understand cognitive development in BECTS.
Area of Science:
- Pediatric Neurology
- Epileptology
- Developmental Psychology
Background:
- Benign childhood epilepsy with centrotemporal spikes (BECTS) is a common epilepsy syndrome in children.
- Cognitive development and academic performance in children with BECTS require further investigation.
- Longitudinal studies are essential to understand the evolving impact of BECTS on cognitive functions.
Purpose of the Study:
- To longitudinally assess changes in seizure activity, EEG epileptiform activity (EA), and cognitive functions in children with BECTS.
- To compare WISC-III and School Performance Test results before and after the study period.
- To identify potential correlations between seizure characteristics, EA, and cognitive outcomes.
Main Methods:
- A cohort of 32 children diagnosed with BECTS was followed for a mean of 27.6 months.
- Seizure frequency, EEG recordings, WISC-III, and School Performance Test were evaluated at baseline and follow-up.
- Statistical analyses were performed to compare changes and identify correlations.
Main Results:
- Nine children (28.1%) continued to experience seizures, while EA reduced or resolved in 6 children (18.7%).
- Significant improvements were observed in performance and perceptual organization IQ scores.
- Worsening arithmetic performance in 43.7% of children was associated with persistent seizures; no significant correlation was found between cognitive changes and EA characteristics.
Conclusions:
- Some children with BECTS show cognitive improvements, particularly in IQ, but arithmetic skills may decline, especially with ongoing seizures.
- The study highlights the complex relationship between epilepsy, cognitive development, and academic achievement in BECTS.
- Further research is recommended to explore other factors influencing cognitive evolution in this population.
Abstract:
Thirty-two children with benign childhood epilepsy with centrotemporal spikes (BECTS) were studied for a mean period of 27.6 months. The characteristics of the seizures, electroencephalogram (EEG), WISC-III and School Performance Test were compared at the start and end of the study. Nine (28.1%) children continued having seizures. Epileptiform activity (EA) on the EEG reduced in number and was no longer recorded in 6 (18.7%) children. There was a significant improvement in the performance and perceptual organization IQ values. The improvement in reading performance failed to reach statistical significance. The performance in arithmetic worsened in 43.7% of the children, and this was associated with the persistence of epileptic seizures. There were no significant correlations between changes in cognitive aspects and characteristics of EA. There is a need to continue this study, and also search for other factors influencing the evolution of cognitive abilities in children with BECTS.
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