Growth and Treatment in Congenital Adrenal Hyperplasia: An Observational Study from Diagnosis to Final Height
Hormone research in paediatrics(2023)
摘要
IntroductionCongenital adrenal hyperplasia (CAH) due to 21 alpha-hydroxylase deficiency results in inadequate cortisol and aldosterone synthesis and concomitant overproduction of adrenal androgens. Despite adequate replacement, impaired growth and overweight remains a clinical challenge. The main objective was to investigate the differences in growth, final height (FH), and body mass index (BMI) between different CYP21A2 genotype groups and glucocorticoid treatment strategies during the different phases of growth.MethodsThis is a population based observational cohort study from diagnosis to final height (FH). A total of 86 subjects were diagnosed with CAH in Sweden during 1989-1994. Eighty subjects were followed until FH. There were no intervention apart from the clinical standard of care treatment for CAH. The main outcome measure was the corrected FH standard deviation score (cFH SDS) and its correlation with genotype, accumulated total glucocorticoid dose, and treatment strategy. In addition, BMI and growth trajectories during infancy, childhood, and adolescence were studied.ResultsFH was shorter in patients with the more severe CYP21A2 genotypes. Treatment doses of glucocorticoid were within the international treatment recommendations (10-15 mg/m2). Patients with the null and I2 splice genotypes lost approximately 1 SD in final height whereas patients with the milder genotypes (I172N, P30L and V281L) were within 0.5 to 0 SDS from target height. cFH SDS was negatively affected by the use of prednisolone but did not correlate with overall glucocorticoid treatment dose calculated as hydrocortisone equivalents. BMI at 18 years was higher in patients treated with prednisolone but did not correlate with genotype.ConclusionsCorrected final height was more affected in patients with severe CYP21A2 genotypes. The addition of a low dose of prednisolone to the hydrocortisone treatment, despite an equivalent total dose of glucocorticoids, was associated with shorter FH and higher BMI in growing subjects with CAH.
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关键词
congenital adrenal hyperplasia,growth,glucocorticoid treatment,final height,BMI
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