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Young–Madders syndrome is a rare genetic disorder characterized by intellectual disability, seizures, and distinctive facial features. The syndrome was first described by Young and Madders in 1983.

Symptoms and Signs

The most common symptoms of Young–Madders syndrome include intellectual disability, seizures, and distinctive facial features. Other symptoms may include microcephaly (small head size), hypotonia (low muscle tone), and developmental delay.

Causes

Young–Madders syndrome is a genetic disorder. It is caused by mutations in a specific gene, although the exact gene is not yet known. The syndrome is inherited in an autosomal recessive manner, which means both copies of the gene in each cell have mutations.

Diagnosis

Diagnosis of Young–Madders syndrome is based on the presence of characteristic clinical features. Genetic testing may be used to confirm the diagnosis.

Treatment

There is currently no cure for Young–Madders syndrome. Treatment is supportive and based on the symptoms present in each individual. This may include anticonvulsant medications for seizures, physical therapy for hypotonia, and special education services for intellectual disability.

Prognosis

The prognosis for individuals with Young–Madders syndrome varies. Some individuals may have a normal lifespan, while others may have a shortened lifespan due to complications of the disorder.

See Also

• Genetic disorder
• Intellectual disability
• Seizures
• Microcephaly
• Hypotonia
• Developmental delay
• Autosomal recessive
• Genetic testing
• Anticonvulsant
• Physical therapy
• Special education

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