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Published on: October 16, 2013
[Idiopathic short stature: definition and treatment]
J I Diago Cabezudo1, A Carrascosa Lezcano, C J del Valle Núñez
1Departamento de Investigación Clínica Lilly S.A., Madrid, Spain. diago_jesus_ignacio@lilly.com
Insights
Idiopathic short stature (ISS) affects children with short height, excluding constitutional delay. Growth hormone therapy (rhGH) is effective for catch-up growth in these children.
Area of Science:
- Pediatric Endocrinology
- Growth Disorders
Context:
- Short stature is a primary reason for pediatric endocrinology consultations.
- Characterized by decreased growth velocity and short height, it encompasses various conditions.
- Idiopathic short stature (ISS) is diagnosed when known causes are excluded in children below -2 SD height for age and sex.
Purpose:
- To define Idiopathic Short Stature (ISS) within the differential diagnosis of short stature.
- To highlight the potential benefit of recombinant human Growth Hormone (rhGH) therapy for ISS.
Summary:
- ISS affects children with short stature (less than -2 SD) where other causes are ruled out.
- Constitutional delay of growth and development is excluded from the ISS diagnosis.
- Clinical trials confirm the efficacy of rhGH treatment for achieving catch-up growth in children with ISS.
Impact:
- Recognizing ISS is crucial for appropriate diagnosis and management of short stature.
- rhGH therapy offers a viable treatment option for children with ISS, promoting improved growth outcomes.
- This understanding aids pediatric endocrinologists in identifying patients who may benefit from growth hormone intervention.
Abstract:
Short stature is the leading cause of consultation in Pediatric Endocrinology. Decreased growth velocity and abnormally short height are characteristic of several different nosologic entities. Some are well characterized, while others correspond to what is known as idiopathic short stature (ISS). ISS includes children who grow less than 2 SD of the mean height values corresponding to their peers of similar age and the same sex, in whom the known causes of short stature have been ruled out. The diagnosis of ISS does not include children who only present a constitutional delay in growth and development. Several clinical trials have demonstrated the efficacy of growth hormone (rhGH) treatment in achieving catch-up growth in these children. Therefore, ISS should be kept in mind in the diagnosis of patients with short stature and abnormal growth patterns, who may benefit from rhGH treatment.
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