Learn About Prader-Willi Syndrome

What is the definition of Prader-Willi Syndrome?

Prader-Willi syndrome is a disease that is present from birth (congenital). It affects many parts of the body. People with this condition feel hungry all the time and become obese. They also have poor muscle tone, reduced mental ability, and underdeveloped sex organs.

What are the causes of Prader-Willi Syndrome?

Prader-Willi syndrome is caused by a missing gene on chromosome 15. Normally, parents each pass down a copy of this chromosome. The syndrome can occur in a couple of ways:

  • The father's genes are missing on chromosome 15
  • There are variations with the father's genes on chromosome 15
  • There are two copies of the mother's chromosome 15 and none from the father

These genetic changes occur randomly. People who have this syndrome usually do not have a family history of the condition.

What are the symptoms of Prader-Willi Syndrome?

Signs of Prader-Willi syndrome may be seen at birth.

  • Newborns are often small and floppy with reduced muscle tone
  • Male infants may have undescended testicles

Other symptoms may include:

  • Trouble feeding as an infant, with poor weight gain
  • Almond-shaped eyes
  • Delayed muscle and motor function development
  • Narrowed head at the temples
  • Rapid weight gain
  • Short stature
  • Slow mental development
  • Very small hands and feet in comparison to the child's body

Children have an intense craving for food. They will do almost anything to get food, including hoarding. This can result in rapid weight gain and morbid obesity. Morbid obesity may lead to:

  • Type 2 diabetes
  • High blood pressure
  • Joint and lung problems
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What are the current treatments for Prader-Willi Syndrome?

Obesity is the greatest threat to health. Limiting calories will control weight gain. It is also important to control your child's environment to prevent access to food. Your child's family, neighbors, and school must work together, because your child will try to get food wherever possible. Exercise can help a child with Prader-Willi syndrome gain muscle.

Growth hormone is used to treat Prader-Willi syndrome. It can help:

  • Build strength and agility
  • Improve height
  • Increase muscle mass and decrease body fat
  • Improve weight distribution
  • Increase stamina
  • Increase bone density

Taking growth hormone therapy may lead to sleep apnea. A child who takes hormone therapy needs to be monitored for sleep apnea.

Low levels of sex hormones may be corrected at puberty with hormone replacement.

Mental health and behavioral counseling are also important. This can help with common problems such as skin picking and compulsive behaviors. Sometimes, medicine to treat mental health conditions may be needed.

Who are the top Prader-Willi Syndrome Local Doctors?
Antonino Crino
Elite in Prader-Willi Syndrome
Elite in Prader-Willi Syndrome
Rome, IT 

Antonino Crino practices in Rome, Italy. Crino and is rated as an Elite expert by MediFind in the treatment of Prader-Willi Syndrome. His top areas of expertise are Prader-Willi Syndrome, Obesity, Addison's Disease, Sleeve Gastrectomy, and Gastrectomy.

Talia Geva-Eldar
Elite in Prader-Willi Syndrome
Elite in Prader-Willi Syndrome
2 Bayit Street, 
Jerusalem, JM, IL 

Talia Geva-Eldar practices in Jerusalem, Israel. Geva-Eldar and is rated as an Elite expert by MediFind in the treatment of Prader-Willi Syndrome. Her top areas of expertise are Prader-Willi Syndrome, Hypogonadism, Infertility, Isolated Hypogonadotropic Hypogonadism, and Hormone Replacement Therapy (HRT).

 
 
 
 
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Elite in Prader-Willi Syndrome
Medical Genetics | Pediatrics
Elite in Prader-Willi Syndrome
Medical Genetics | Pediatrics

Kansas University Physicians Inc

4000 Cambridge St, 
Kansas City, KS 
Languages Spoken:
English
Accepting New Patients
Offers Telehealth

Merlin Butler is a Medical Genetics specialist and a Pediatrics provider in Kansas City, Kansas. Dr. Butler and is rated as an Elite provider by MediFind in the treatment of Prader-Willi Syndrome. His top areas of expertise are Prader-Willi Syndrome, Hypotonia, Angelman Syndrome, Hormone Replacement Therapy (HRT), and Tenotomy. Dr. Butler is currently accepting new patients.

What are the support groups for Prader-Willi Syndrome?

The following organizations can provide resources and support:

  • Prader-Willi Syndrome Association -- www.pwsausa.org
  • Foundation for Prader-Willi Research -- www.fpwr.org
What is the outlook (prognosis) for Prader-Willi Syndrome?

The child will need the right education for their IQ level. The child will also need speech, physical, and occupational therapy as early as possible. Controlling weight will allow for a much more comfortable and healthy life.

What are the possible complications of Prader-Willi Syndrome?

Complications of Prader-Willi can include:

  • Type 2 diabetes
  • Right-sided heart failure
  • Bone (orthopedic) problems
When should I contact a medical professional for Prader-Willi Syndrome?

Contact your health care provider if your child has symptoms of this condition. The disorder is frequently suspected at birth.

What are the latest Prader-Willi Syndrome Clinical Trials?
A Phase 3, Randomized, Double-blind, Placebo-controlled Study of ARD-101 for the Treatment of Hyperphagia in Patients With Prader-Willi Syndrome

Summary: The goal of this clinical trial is to learn if ARD-101 works to treat hyperphagia-related behavior in patients with Prader-Willi syndrome (PWS). It will also teach us about the safety of ARD-101. The main questions it aims to answer are: * Does ARD-101 improve the total score of the HQCT-9 (hyperphagia questionnaire for clinical trials, 9 questions)? * What medical problems do participants have wh...

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A Randomized, Double-Blind, Controlled Trial of Bright Light Therapy on All-Cause Excessive Daytime Sleepiness in Prader-Willi Syndrome

Summary: This is a placebo controlled clinical trial to assess the utility of light therapy as a sufficient treatment for excessive daytime sleepiness in patients with Prader-Willi Syndrome

Who are the sources who wrote this article ?

Published Date: April 17, 2024
Published By: Neil K. Kaneshiro, MD, MHA, Clinical Professor of Pediatrics, University of Washington School of Medicine, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

What are the references for this article ?

Cooke DW, DiVall SA, Radovick S. Normal and aberrant growth in children. In: Melmed S, Auchus RJ, Goldfine AB, Koenig RJ, Rosen CJ, eds. Williams Textbook of Endocrinology. 14th ed. Philadelphia, PA: Elsevier; 2020:chap 25.

Escobar O, Gurunca N, Viswanathan P, Witchel SF. Pediatric endocrinology. In: Zitelli BJ, McIntire SC, Nowalk AJ, Garrison J, eds. Zitelli and Davis' Atlas of Pediatric Physical Diagnosis. 7th ed. Philadelphia, PA: Elsevier; 2023:chap 9.

Kumar V, Abbas AK, Aster JC, Deyrup AT, Das A. Genetic and pediatric diseases. In: Kumar V, Abbas AK, Aster JC, Deyrup AT, Das A, eds. Robbins and Kumar Basic Pathology. 11th ed. Philadelphia, PA: Elsevier; 2023:chap 4.