Near-final height in patients with congenital adrenal hyperplasia treated with combined therapy using GH and GnRHa

Carlos Alberto Longui, Cristiane Kochi, Luís Eduardo Procópio Calliari, Maria Barcellos Rosa Modkovski, Marisa Soares, Erica Ferreira Alves, Fernanda Vilas Boas Prudente, Osmar Monte
Arquivos Brasileiros de Endocrinologia e Metabologia 2011, 55 (8): 661-4

INTRODUCTION: Intrinsic limitations of glucocorticoid therapy in patients with congenital adrenal hyperplasia (CAH) determine frequent loss in final height. The association of secondary central precocious puberty and early epiphyseal fusion is also frequent. In these conditions, GnRHa treatment alone or in combination with GH has been indicated.

OBJECTIVES: This is a retrospective study, describing the estatural findings of CAH patients with significant decrease in height prediction, who were submitted to combined GH plus GnRHa therapy up to near-final height.

SUBJECTS AND METHODS: We studied 13 patients, eight females and five males, eight with the classical and five with the nonclassical form of the disorder. Treatment with hydrocortisone (10-20 mg/m(2)/day) or prednisolone (3-6 mg/kg/day) was associated with GnRHa (3.75 mg/months) for 4.0 (1.5) years, and GH (0.05 mg/kg/day) for 3.6 (1.4) years.

RESULTS: Stature standard deviation score for bone age improved significantly after GH treatment, becoming similar to target height at the end of the second year of GH treatment.

CONCLUSION: We conclude that combined GH plus GnRHa therapy can be useful in a subset of CAH patients with significant reduction of predicted final height associated with poor hormonal control and central precocious puberty.

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