Literature DB >> 25766047

Triiodothyronine-predominant Graves' disease in childhood: detection and therapeutic implications.

Julie Harvengt1, Priscilla Boizeau2, Didier Chevenne3, Delphine Zenaty3, Anne Paulsen3, Dominique Simon3, Sophie Guilmin Crepon4, Corinne Alberti4, Jean-Claude Carel4, Juliane Léger4.   

Abstract

OBJECTIVE: To assess in a pediatric population, the clinical characteristics and management of triiodothyronine-predominant Graves' disease (T3-P-GD), a rare condition well known in adults, but not previously described in children.
DESIGN: We conducted a university hospital-based observational study.
METHODS: All patients with GD followed for more than 1 year between 2003 and 2013 (n=60) were included. T3-P-GD (group I) was defined as high free T3 (fT3) concentration (>8.0 pmol/l) associated with a normal free thyroxine (fT4) concentration and undetectable TSH more than 1 month after the initiation of antithyroid drug (ATD) treatment. Group II contained patients with classical GD without T3-P-GD.
RESULTS: Eight (13%) of the patients were found to have T3-P-GD, a median of 6.3 (3.0-10.5) months after initial diagnosis (n=4) or 2.8 (2.0-11.9) months after the first relapse after treatment discontinuation (n=4). At GD diagnosis, group I patients were more likely to be younger (6.8 (4.3-11.0) vs 10.7 (7.2-13.7) years) and had more severe disease than group II patients, with higher serum TSH receptor autoantibodies (TRAb) levels: 40 (31-69) vs 17 (8-25) IU/l, P<0.04, and with slightly higher serum fT4 (92 (64-99) vs 63 (44-83) pmol/l) and fT3 (31 (30-46) vs 25 (17-31) pmol/l) concentrations. During the 3 years following T3-P-GD diagnosis, a double dose of ATD was required and median serum fT4:fT3 ratio remained lower in group I than in group II.
CONCLUSION: Severe hyperthyroidism, with particularly high TRAb concentrations at diagnosis, may facilitate the identification of patients requiring regular serum fT3 determinations and potentially needing higher doses of ATD dosage during follow-up.
© 2015 European Society of Endocrinology.

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Year:  2015        PMID: 25766047     DOI: 10.1530/EJE-14-0959

Source DB:  PubMed          Journal:  Eur J Endocrinol        ISSN: 0804-4643            Impact factor:   6.664


  3 in total

1.  Initial response of young people with thyrotoxicosis to block and replace or dose titration thionamide.

Authors:  Claire L Wood; Niamh Morrison; Michael Cole; Malcolm Donaldson; David B Dunger; Ruth Wood; Simon H S Pearce; Timothy D Cheetham
Journal:  Eur Thyroid J       Date:  2022-01-01

2.  2022 European Thyroid Association Guideline for the management of pediatric Graves' disease.

Authors:  Christiaan F Mooij; Timothy D Cheetham; Frederik A Verburg; Anja Eckstein; Simon H Pearce; Juliane Léger; A S Paul van Trotsenburg
Journal:  Eur Thyroid J       Date:  2022-01-01

3.  Therapy with propylthiouracil for T3-predominant neonatal Graves' disease: a case report.

Authors:  Emi Hamajima; Masahiro Noda; Emina Nai; Satoka Akiyama; Yoji Ikuta; Natsuko Obana; Takahiro Kawaguchi; Kenta Hayashi; Kunihiro Oba; Tomohiro Yoshida; Tatsuo Katori; Masayuki Kokaji
Journal:  Clin Pediatr Endocrinol       Date:  2018-07-31
  3 in total

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