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What is Smith-Magenis Syndrome?

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Summary

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Smith-Magenis Syndrome, often called SMS, is like having a body clock that runs differently. People with SMS feel sleepy during the day and awake at night. They also may learn things at their own pace and have unique ways of understanding the world.

Frequently Asked Question

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Can Smith-Magenis Syndrome be diagnosed at birth?

While the distinct facial features associated with Smith-Magenis Syndrome may be present at birth, a definitive diagnosis is usually made through genetic testing.

Are there any associated health conditions with Smith-Magenis Syndrome?

Yes, individuals with Smith-Magenis Syndrome may experience various health conditions such as recurrent ear infections, heart defects, gastrointestinal issues, and scoliosis.

Can Smith-Magenis Syndrome be inherited?

In most cases, Smith-Magenis Syndrome is not inherited but occurs as a result of a spontaneous genetic mutation. However, in rare instances, it can be inherited from a parent who carries a chromosomal rearrangement.

Do individuals with Smith-Magenis Syndrome have a normal lifespan?

While there is no specific data on life expectancy for Smith-Magenis Syndrome, with appropriate medical care and management of associated health conditions, individuals with this syndrome can live a fulfilling and meaningful life.

Scientific Definition

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Smith-Magenis Syndrome (SMS) is a genetic disorder. It is typically caused by a tiny missing piece on one of the body’s chromosomes, specifically chromosome 17. This condition affects many parts of the body. Key features of SMS include a disrupted sleep-wake cycle, intellectual disability, distinctive facial features, and behavioral problems. Individuals with SMS often have a strong desire for social interaction, but their approach can sometimes be overly friendly or attention-seeking. It’s a complex syndrome with wide-ranging impacts, which can differ from person to person.

Treatment for Smith-Magenis Syndrome

Managing Smith-Magenis Syndrome requires a blend of strategies. Here are some ways to help your child:

  • Behavioral therapy: Imagine using games to teach your child how to behave at a birthday party. It can make learning fun.
  • Physical therapy: Picture your child doing easy exercises to build muscle strength and balance.
  • Special education services: Consider a teacher who understands your child’s unique way of learning. It can help them thrive at school.
  • Sleep aids: Envision setting up a relaxing bedtime routine. It might help them sleep better at night.
  • Regular check-ups: Imagine a doctor who knows SMS well. They can catch and treat health issues early.

The road with SMS can be challenging, but leading a fulfilling life is possible. With the right care and support, your child can grow to be a happy and resilient adult.

Symptoms of Smith-Magenis Syndrome

Smith-Magenis Syndrome shows itself in many ways. The signs can be different from one person to the next. Here’s a quick list of common symptoms:

  • Daytime sleepiness: People with SMS often feel tired during the day.
  • Night-time alertness: They may stay awake during the night.
  • Unique facial features: These may include a square-shaped face, deep-set eyes, and full cheeks.
  • Learning challenges: Learning things may take a bit longer.
  • Social behavior: Folks with SMS are usually amiable, sometimes overly so.

Each person’s experience with SMS is unique. If you notice these signs, a health professional can guide you on what to do next. 

 

Editor’s note: This information is not meant to diagnose or treat and should not take the place of personal consultation, as needed, with a qualified healthcare provider and/or BCBA.

This post was originally published on July. 11, 2023. It was updated on Jan. 22, 2024.