Overview
Constitutional delay of growth and puberty (CDGP) is characterized by a delay in growth and pubertal development without underlying pathology, distinguishing it from conditions like partial growth hormone deficiency (pGHD) and congenital hypogonadotropic hypogonadism (cHH) 1.Diagnosis
Clinical Presentation: Poor growth in pre- or peri-pubertal age 1.
Growth Hormone Stimulation Test (GHST): Essential for differentiating CDGP from pGHD; priming before GHST increases specificity 1.
Pituitary MRI: Recommended to rule out structural pituitary abnormalities 1.
Genetic Analysis: Considered for personalized follow-up and to differentiate from genetic causes 1.
Family History: Recurrence within families supports a diagnosis of CDGP 1.Management
Observation: Often no specific treatment is required; regular monitoring is key 1.
Growth Hormone Therapy: Not routinely indicated for CDGP unless there is a confirmed growth hormone deficiency 1.
Nutritional Support: Ensuring adequate diet quality may support overall growth, though specific dietary interventions are not universally recommended for CDGP 2.Special Populations
Pediatrics: Focus on distinguishing CDGP from other causes of pubertal delay through appropriate diagnostic testing 1.Key Recommendations
Perform a growth hormone stimulation test with priming for accurate differentiation between CDGP and pGHD (Evidence: Moderate) 1.
Consider pituitary MRI to exclude structural abnormalities in the differential diagnosis 1.
Utilize family history to support the diagnosis of CDGP, given its familial recurrence pattern (Evidence: Expert opinion) 1.References
1 Galazzi E, Persani LG. Differential diagnosis between constitutional delay of growth and puberty, idiopathic growth hormone deficiency and congenital hypogonadotropic hypogonadism: a clinical challenge for the pediatric endocrinologist. Minerva endocrinologica 2020. link
2 Shinsugi C, Tani Y, Kurotani K, Takimoto H, Ochi M, Fujiwara T. Change in Growth and Diet Quality Among Preschool Children in Tokyo, Japan. Nutrients 2020. link