Abstract
Ten children with cerebral palsy (CP) and growth failure underwent assessment of the growth hormone (GH) axis, including spontaneous GH secretion, GH secretion in response to pharmacological stimulation, and circulating levels of insulin-like growth factor-1 (IGF-1) and IGF binding protein-3 (IGFBP-3). Six of the children had subnormal GH secretion consistent with GH deficiency. Subnormal growth velocity was the best clinical predictor of GH deficiency. The large percentage of these children with apparent GH deficiency is surprising. Possible mechanisms include anatomic abnormalities of the hypothalamic-pituitary axis, psychosocial deprivation, and an interaction between suboptimal nutritional status and an abnormal central nervous system.
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