ESPE Abstracts (2019) 92 P3-139

Responses to Growth Hormone (GH) Therapy in Children with Short Stature with Normal GH Secretion and Slow Growth Velocity

Ahmed Elawwa, Ashraf Soliman


University of Alexandria, Alexandria, Egypt


Background: Variability still exist about the growth response to growth hormone (GH) therapy in children with idiopathic short stature We describe the growth response to GH therapy ( 0.05 mg/kg/day) for > 2 years in 20 prepubertal children with idiopathic short stature (ISS) who had slow growth velocity ( < -1 SD), normal GH response to provocation and who were significantly shorter than their mid-parents height SDS MPHtSDS (-1 difference).

Results: The height SDS gain in a mean of 2.5 years = 0.77 SD, with a significant increase in IGF-I (triple) and normal progression of puberty. The difference between children HtSDS and MPHtSDS changed significant from -1.1 +/-3 at the beginning of GH therapy to -0.3 +/- 0.5 at the last visit. Table 1

The HtSDS gain was correlated with the duration of GH therapy ( r = 0.82, P < 0.0001), negatively with age at the start of treatment ( r = -0.544, P = 0.01, and negatively with the bone age delay in years ( r = 0.44, P = 0.04). No correlation between HtSDS gain and IGF-1, Peak GH to provocation, or change in IGF-I ( r = 0.09, -0.18, and -0.02 respectively.

Conclusion: We report significant gain in HtSDS in prepubertal children with ISS on GH therapy. Better response was achieved with prolonged duration of GH therapy, younger age and delayed bone age at the beginning of therapy.

Start of treatmentOn last visitDifferences
AgeMean9.8812.36*2.49
yearsSD2.622.271.61
IGF-IMean143.4407.1*263.7
unitsSD57.4162.4105
HtSDSMean-2.34 -1.57*0.77
SD0.410.550.14
Pubertal stageMean1.352.7*1.35
SD0.651.350.7

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