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Updated: Jun 27, 2026

Electromagnetic Source Imaging in Presurgical Evaluation of Children with Drug-Resistant Epilepsy
Published on: September 20, 2024
Psychopathology, psychosocial functioning, and IQ before and after epilepsy surgery in children with drug-resistant
Susanna Danielsson1, Gerd Viggedal, Suzanne Steffenburg
1Department of Pediatrics, Child Neuropsychiatry (BNK), Queen Silvia Children's Hospital, Göteborg, Sweden. susanna.danielsson@vgregion.se
Insights
Children with drug-resistant epilepsy often have co-occurring psychiatric disorders like ADHD and ASD, which persist post-surgery. Many behavioral issues remain undiagnosed, highlighting unmet service needs for these children.
Area of Science:
- Neuroscience
- Child Psychiatry
- Developmental Psychology
Background:
- Epilepsy surgery in children is a complex intervention.
- Psychopathology and intellectual functioning are crucial factors in surgical outcomes.
- Understanding psychosocial functioning is vital for comprehensive care.
Purpose of the Study:
- To assess psychopathology and IQ heterogeneity in pediatric epilepsy surgery patients.
- To evaluate psychosocial functioning using the Children's Global Assessment Scale (CGAS).
- To analyze changes in neuropsychiatric and neuropsychological status at 2-year follow-up.
Main Methods:
- Prospective study of 24 children undergoing epilepsy surgery.
- Baseline and 2-year follow-up clinical neuropsychiatric and neuropsychological assessments.
- Individual-level analysis of changes in functioning and diagnoses.
Main Results:
- 17 of 24 children had psychiatric disorders (ADHD, ASD) at some point.
- Psychiatric diagnoses largely persisted post-surgery.
- Intellectual ability remained stable for most children.
- CGAS scores reflected significant psychosocial challenges due to comorbidity.
Conclusions:
- Co-occurring psychiatric disorders are common and persistent in pediatric epilepsy surgery candidates.
- Behavioral problems are often unrecognized, indicating a gap in services.
- Comprehensive assessment and integrated care are essential for children with drug-resistant epilepsy.
Abstract:
This is a prospective study of a consecutive series of children undergoing epilepsy surgery. The main aims were to evaluate the heterogeneity with respect to psychopathology and IQ, and to use a global assessment scale (Children's Global Assessment Scale [CGAS]) to evaluate psychosocial functioning. Clinical neuropsychiatric and neuropsychological assessments were made at baseline and at the 2-year follow-up in 24 patients, and changes were analyzed at an individual level. Psychiatric disorders (mainly attention deficit hyperactivity disorder and/or autism spectrum disorders) were found in 17 of 24 at some point. All except one child with psychiatric diagnoses before surgery still had at least one diagnosis at follow-up. Intellectual ability remained stable in the majority of cases, both in individuals with and in individuals without mental retardation. The CGAS illustrated the consequences of the extensive comorbidity in this cohort. The behavioral problems had been undiagnosed despite parental concern in many cases, indicating an unrecognized need for services for children with drug-resistant epilepsy.
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