[Epilepsies and language disorders]

Area of Science:

• Neuroscience
• Developmental Pediatrics
• Clinical Neurology

Context:

• Epilepsy in children can impact cognitive functions, particularly language development.
• The relationship between epilepsy and language disorders, including developmental dysphasia and acquired epileptic aphasia of Landau-Kleffner syndrome (LKS), is complex.
• Understanding this association is crucial for accurate diagnosis and management.

Purpose:

• To investigate the effects of epilepsy, seizures, and electroencephalographic discharges on children's cognitive and language functions.
• To explore the relationship between developmental dysphasia and epilepsy, considering various etiological hypotheses.
• To analyze the characteristics, diagnosis, and treatment of acquired epileptic aphasia of Landau-Kleffner syndrome.

Summary:

• A review of literature and nine cases suggests no definitive direct link between epilepsy and language disorders, though associations exist.
• Acquired epileptic aphasia of Landau-Kleffner syndrome (LKS) presents with diverse clinical features, EEG abnormalities, and often co-occurring seizures.
• Treatment involving medication, surgery, speech, and educational therapy yields variable results (≤50% success), with unpredictable prognoses.

Impact:

• The findings contribute to understanding the complex interplay between epileptic syndromes and language impairments in children.
• Highlights the potential severity of LKS and related conditions, emphasizing the need for cautious assessment and management.
• Supports the hypothesis that LKS, continuous spike-and-wave during slow sleep, and atypical benign partial epilepsy represent a spectrum of the same epileptic syndrome affecting a vulnerable developing brain.