II. Epidemiology
- Incidence: 1 in 3,000 to 9,000 children with Short Stature
III. Causes
- Congenital
- Acquired
IV. Signs: Congenital GH Deficiency (newborns)
- Normal size at birth
- Subsequently falls off height growth curve
- Weight for age is preserved
- Episodic Hypoglycemia
- Prolonged Neonatal Jaundice
- Microphallus
- Midline craniofacial abnormalities (e.g. Cleft Lip)
V. Signs: Acquired
- Children
- Normal initial growth until onset of GH Deficiency
- Progressive Growth Delay (depending on severity)
- Adults
VI. Imaging
- Brain MRI
-
Bone Age Film
- Delayed Bone Age
VII. Labs (in Consultation with pediatric endocrinology)
- Screening
- Insulinlike Growth Factor 1 (IGF-1)
- Insulinlike Growth Factor binding Protein 3
- Diagnosis
- Negative Growth Hormone provocation test
- Pituitary Function Tests
VIII. Management
- Pediatric Endocrinology referral
- Recombinant Growth Hormone injections daily