Atypical benign partial epilepsy of childhood with acquired neurocognitive, lexical semantic, and autistic spectrum...

Area of Science:

• Pediatric Neurology
• Epileptology
• Neurogenetics

Background:

• Atypical benign partial epilepsy (ABPE) of childhood, or pseudo-Lennox syndrome, is an idiopathic focal epilepsy.
• ABPE presents with diverse seizures, epileptiform discharges, and potential neurocognitive deficits.
• Limited data exists on longitudinal follow-up and genetic underpinnings of ABPE-associated deficits.

Purpose of the Study:

• To conduct a phenotype-genotype study of a child with ABPE.
• To detail the longitudinal progression of neurocognitive, language, and motor deficits in relation to epilepsy.
• To investigate potential genetic variants contributing to ABPE and associated disorders.

Main Methods:

• Longitudinal clinical follow-up of a pediatric patient with ABPE from ages 5 to 13 years.
• Detailed assessment of oromotor, language, social-communicative, and motor deficits.
• Whole exome sequencing to identify genetic variants.

Main Results:

• The patient exhibited acquired oromotor deficits and later developed specific lexical-semantic and pervasive developmental disorders.
• Exome sequencing revealed variants in SCN9A, CPA6, and SCNM1 genes.
• A direct causal relationship between the epilepsy and the observed neurocognitive deficits was evident.

Conclusions:

• This case highlights the significant neurodevelopmental impact of ABPE.
• Genetic variants in SCN9A, CPA6, and SCNM1 may play a role in ABPE pathogenesis.
• Further research is needed to elucidate the molecular inheritance patterns in ABPE and related epilepsy aphasia disorders.