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Objective: Evaluate the Neonatal Screening Program (NSP) for congenital adrenal hyperplasia (CAH) of the Department of Health of the State of Santa Catarina (Secretaria de Estado da Saúde de Santa Catarina, SES/SC), and provide information to improve the program. Subjects and methods: Descriptive, retrospective study of 748,395 children screened between January 2001 and December 2010. We analyzed the coverage of the NSP-SES/SC prevalence of CAH, child's age when the first sample for 17-hydroxyprogesterone (17OHP) measurement was collected, levels of 17OHP, mean age at treatment onset and main clinical manifestations. Results: The NSP-SES/ SC covered 89% of the live newborns in the State. It diagnosed 50 cases of CAH, yielding an incidence of 1:14,967. Mean age at collection of the first sample was 7.3 days and mean level of 17OHP was 152.9 ng/mL. The most frequent manifestations were virilized genitalia with nonpalpable gonads, clitoromegaly and genital hyperpigmentation. In three girls, the genre established at birth was incorrect. The salt-wasting form was present in 74% of the cases. There was no occurrence of shock or death. Mean age at treatment onset in the salt-wasting form was 17.4 days compared with 54.9 days in those without the salt-wasting form of the disease. All children were treated with hydrocortisone, and those with salt-wasting CAH were also treated with fludrocortisone. Conclusions: The incidence of CAH was 1 case to 14,967 live newborns. Collection of the first sample occurred outside the recommended time, resulting in delays in treatment onset. Arq Bras Endocrinol Metab. 2014;58(7):765-71

For the etiological diagnosis, history, physical examination, and additional tests (TSH, free thyroxine, thyroglobulin, bone age assessment, thyroid ultrasound) were carried out in the first visit. Results: The etiology was established in the first visit in 53.3% of cases. Thyroid dysgenesis represented 51.11% of the cases, from which 20% showed hypoplastic thyroid, 13.3% showed athyreosis, and 17.7% showed ectopic glands; 2.2% were diagnosed with dyshormonogenesis. Umbilical hernia was the most prevalent sign (48.89%) and 20% had no clinical manifestations. Patients with dysgenesis showed significant differences (p < 0.05) in terms of cesarean section delivery, delayed bone age, and very high serum TSH. Conclusions: The diagnostic approach used at first visit for PCH patients may determine the etiology in 53.3% of cases. Half of patients had thyroid dysgenesis. Arq Bras Endocrinol Metab. 2012;56(9):627-32

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