ESPE Abstracts (2016) 86 P-P2-942

aEndocrinology Dept, P & A Kyriakou children’s Hospital, Athens, Greece; bMicrobiology Dept, P & A Kyrakou Children’s Hospital, Athens, Greece; c2nd Department of Pediatrics, Diabetic Clinic, University of Athens, “P&A Kyriakou” Children’s Hospital, Athens, Greece


Background: The natural evolution of euthyroid Hashimoto thyroiditis (HT) varies among children and treatment in children with HT and normal/mild elevated serum TSH is controversial.

Objective and hypotheses: The aim was to study the natural course of HT in children and evaluate predictive factors of thyroid function

Method: We evaluated data from 87 children retrospectively (63 girls, 24 boys), mean age 10.6±3.2yrs, with HT [antibody titers (anti-Tg and anti-TPO) at least double the upper limit of normal]. All children had FT4 within normal ranges at diagnosis, 64 had also normal TSH<5 U/L (group 1), whereas 23 of them had subclinical hypothyroidism 5<TSH<10 U/L (group 2). Serum levels of FT4 and TSH were recorded at 6, 12 and 24 months after their diagnosis and thyroid ultrasound was performed at 12 and 24 months.

Results: During follow up, 45 (70.3%) patients of group 1 remained euthyroid (TSH<5 U/L), 11 (17.2%) presented mild elevation of TSH<10 U/L and in 8 (12.5%) TSH rose>10 U/L, among whom 4 developed overt hypothyroidism. In group 2, 8 (34.8%) presented normalization of TSH, 5 (21.7%) remained stable with mild elevation of TSH<10 U/L, while 10 (43.5%) developed significant rise of TSH>10 U/L and/or overt hypothyroidism. Children with deterioration of thyroid function (33.3%) during follow up had higher anti-TPO (660.2±680 vs 329.7±392 U/ml, P=0.04) and anti-Tg levels (1288.6±1037 vs 608.3±536 U/ml, P=0.04) at baseline and significantly higher increase of anti-Tg levels during follow-up (115.2±78 vs 28.2±25 U/ml, P=0.05), compared to children who remained or reversed to normal.

Conclusion: A significant percentage of children (66.7%) with HT remained or became euthyroid during a 2 year follow-up period. Antibody titers at diagnosis and their progressive increase may constitute predictive factors of future deterioration of thyroid function in children with HT.

Volume 86

55th Annual ESPE (ESPE 2016)

Paris, France
10 Sep 2016 - 12 Sep 2016

European Society for Paediatric Endocrinology 

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