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Endocrine manifestations and management of Prader-Willi syndrome
1Department of Pediatrics, Walter Reed National Military Medical Center Bethesda, 8901 Wisconsin Ave, Bethesda, MD 20889, USA. Karen.S.Vogt.mil@health.mil.
Insights
Prader-Willi syndrome (PWS) is a genetic disorder affecting chromosome 15. Early diagnosis and management of endocrine and behavioral issues are crucial for improving health and developmental outcomes in children with PWS.
Area of Science:
- Genetics
- Endocrinology
- Pediatrics
Background:
- Prader-Willi syndrome (PWS) is a complex genetic disorder due to the absence of paternally expressed genes on chromosome 15q11.2-q13.
- Infantile hypotonia and failure to thrive evolve into developmental delay, cognitive disability, and behavioral issues in older children.
- Hypothalamic dysfunction in PWS contributes to hyperphagia, temperature dysregulation, sleep disturbances, and endocrine abnormalities.
Purpose of the Study:
- To review recent literature on optimal screening and treatment of endocrine abnormalities in PWS.
- To provide an update on nutritional and behavioral interventions for food-related issues.
- To emphasize the importance of early diagnosis and comprehensive management for improved outcomes.
Main Methods:
- Literature review of recent studies on PWS endocrine abnormalities, nutrition, and behavior.
- Summarization of current standards of care for growth hormone therapy, adrenal insufficiency, hypogonadism, hypothyroidism, and diabetes.
- Inclusion of screening recommendations and potential side effect surveillance.
Main Results:
- Growth hormone deficiency, central adrenal insufficiency, hypogonadism, hypothyroidism, and obesity-related complications like type 2 diabetes mellitus are common endocrine issues in PWS.
- Optimal screening and treatment protocols for these endocrine abnormalities are discussed.
- Nutrition and behavioral interventions are highlighted as key components of PWS management.
Conclusions:
- Early diagnosis and meticulous management of endocrine and behavioral manifestations in PWS significantly improve health and developmental trajectories.
- The role of healthcare providers in the comprehensive care of individuals with PWS is critical.
- Adherence to established standards of care can mitigate complications and enhance quality of life.
Abstract:
Prader-Willi syndrome (PWS) is a complex genetic disorder, caused by lack of expression of genes on the paternally inherited chromosome 15q11.2-q13. In infancy it is characterized by hypotonia with poor suck resulting in failure to thrive. As the child ages, other manifestations such as developmental delay, cognitive disability, and behavior problems become evident. Hypothalamic dysfunction has been implicated in many manifestations of this syndrome including hyperphagia, temperature instability, high pain threshold, sleep disordered breathing, and multiple endocrine abnormalities. These include growth hormone deficiency, central adrenal insufficiency, hypogonadism, hypothyroidism, and complications of obesity such as type 2 diabetes mellitus. This review summarizes the recent literature investigating optimal screening and treatment of endocrine abnormalities associated with PWS, and provides an update on nutrition and food-related behavioral intervention. The standard of care regarding growth hormone therapy and surveillance for potential side effects, the potential for central adrenal insufficiency, evaluation for and treatment of hypogonadism in males and females, and the prevalence and screening recommendations for hypothyroidism and diabetes are covered in detail. PWS is a genetic syndrome in which early diagnosis and careful attention to detail regarding all the potential endocrine and behavioral manifestations can lead to a significant improvement in health and developmental outcomes. Thus, the important role of the provider caring for the child with PWS cannot be overstated.
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