Anthropometric and endocrine features in girls with isolated premature pubarche or non-classical congenital adrenal hyperplasia

Solange Garcia Accetta, Khristiane Di Domênico, Clarice Gabardo Ritter, Anelise Teichmann Ritter, Edison Capp, Poli Mara Spritzer
Journal of Pediatric Endocrinology & Metabolism: JPEM 2004, 17 (5): 767-73

UNLABELLED: Clinical and hormonal changes in girls with precocious pubarche, a multifactorial entity, have not been thoroughly investigated.

OBJECTIVES: To describe anthropometric features and bone age in Brazilian girls with precocious pubarche, and to compare clinical and hormonal findings for patients with isolated precocious pubarche (IPP) or non-classical congenital adrenal hyperplasia (NC-CAH).

PATIENTS AND METHODS: Twenty-eight girls with precocious pubarche were consecutively seen at the Child and Pubertal Gynecologic Clinic and the Gynecological Endocrinology Unit of Hospital de Clinicas de Porto Alegre. Patients with central precocious puberty and pseudopuberty were excluded from the study. Diagnostic criteria: NC-CAH: 17-hydroxyprogesterone (17OHP) >12 ng/ml 60 min after 0.25 mg i.m. ACTH; IPP: hormonal levels compatible with adrenarche and normal adrenal function confirmed by ACTH testing. Anthropometric and hormonal features and bone age were assessed.

RESULTS: Six patients had NC-CAH, and 22 IPP. NC-CAH frequency was 21.42%. Weight and BMI were above 50th percentile except for patients <4 years; 46% of the girls were either overweight or obese. Clinical and hormonal features, except for response to ACTH testing, were similar in both groups; all patients were in or above the 50th percentile for height. Bone age was advanced in 43% of the patients. There was no statistical difference between the groups.

CONCLUSION: Slight acceleration of height and bone age, one of the clinical manifestations of precocious pubarche, is unlikely to be progressively severe.

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