The tuberous sclerosis syndrome: clinical and EEG studies in 100 children

Area of Science:

• Neurology
• Genetics
• Pediatrics

Background:

• Tuberous sclerosis syndrome (TSC) is a genetic disorder affecting multiple organs.
• Early identification of clinical and EEG features is crucial for managing TSC in children.

Purpose of the Study:

• To describe the evolution of early clinical and electroencephalogram (EEG) features in 100 children with tuberous sclerosis syndrome.
• To emphasize the individual variability in epileptic manifestations, skin changes, and mental development.

Main Methods:

• Longitudinal observation of 100 children diagnosed with tuberous sclerosis syndrome.
• Detailed recording of clinical symptoms (seizures, skin lesions, mental status) and EEG findings.
• Analysis of the temporal evolution and interrelationships of these features.

Main Results:

• Seizures occurred in 98% of children, with infantile spasms prominent in the first two years.
• Mental defect (88%) and hypopigmented skin lesions (77%) were early signs.
• Facial fibroangiomas (adenoma sebaceum) (77%) and intracranial calcifications (35%) appeared later (2-4 years).
• EEG abnormalities evolved from gross early changes to multifocal alterations.

Conclusions:

• The clinical and EEG manifestations of tuberous sclerosis syndrome in children show significant individual variability.
• The progression of seizures, skin lesions, and intracranial calcifications are not always parallel.
• Understanding the evolutionary patterns aids in early diagnosis and management of TSC.