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Growth and precocious puberty.

Treatment of precocious puberty of central origin is aimed at controlling the development of sexual characteristics and improving final height. Increased growth rate is one of the major clinical symptoms, accompanied by an even more marked advance in bone age. Medroxyprogesterone acetate and cyproterone acetate have provided almost satisfactory control of pubertal characteristics, but with accompanying adrenal insufficiency. The data with regard to growth and bone maturation are contradictory. LHRH analogues have recently become available, and provide good control of gonadotrophin secretion. In a series of 21 cases (13 girls, 8 boys), a significant decrease in growth rate was achieved in both sexes with an LHRH analogue, with a significant increase in the height age/bone age ratio; control of gonadal secretions was also obtained. These results are only preliminary, but provide hope that the final height of these children will be improved.