PMID- 34194397 OWN - NLM STAT- MEDLINE DCOM- 20211220 LR - 20211220 IS - 1664-2392 (Print) IS - 1664-2392 (Electronic) IS - 1664-2392 (Linking) VI - 12 DP - 2021 TI - Long-Term Antithyroid Drug Treatment of Graves' Disease in Children and Adolescents: A 20-Year Single-Center Experience. PG - 687834 LID - 10.3389/fendo.2021.687834 [doi] LID - 687834 AB - BACKGROUND/PURPOSE: Graves' disease (GD) is the most common cause of thyrotoxicosis in children and adolescents. There is some debate regarding the optimal treatment and predicting factors of remission or relapse in children and adolescents with GD. In this study, we report a retrospective study of 195 children and adolescents with GD treated at a single tertiary institution in Korea. METHODS: This study included children and adolescents with GD diagnosed before 19 years of age from January of 2000 to October of 2020. The diagnosis of GD was based on clinical features, high thyroxine (FT4), suppressed thyroid-stimulating hormone, and a positive titer of thyrotropin receptor antibodies. Remission was defined as maintenance of euthyroid status for more than six months after discontinuing antithyroid drug (ATD). RESULTS: A total of 195 patients with GD were included in this study. The mean age at diagnosis was 12.9 +/- 3.2 years, and 162 patients (83.1%) were female. Among all 195 patients, five underwent thyroidectomy and three underwent radioactive iodine therapy. The mean duration of follow-up and ATD treatment were 5.9 +/- 3.8 years and 4.7 +/- 3.4 years, respectively. The cumulative remission rates were 3.3%, 19.6%, 34.1%, 43.5%, and 50.6% within 1, 3, 5, 7, and 10 years of starting ATD, respectively. FT4 level at diagnosis (P = 0.001) was predicting factors for remission [HR, 0.717 (95% CI, 0.591 - 0.870), P = 0.001]. Methimazole (MMI)-related adverse events (AEs) occurred in 11.3% of patients, the most common of which were rash and hematologic abnormalities. Of a total of 26 AEs, 19 (73.1%) occurred within the first month of taking MMI. CONCLUSIONS: In this study, the cumulative remission rate increased according to the ATD treatment duration. Long-term MMI treatment is a useful treatment option before definite treatment in children and adolescents with GD. CI - Copyright (c) 2021 Song, Kim, Kim, Kim, Kim, Bae, Seo, Cho, Choi, Cho and Jin. FAU - Song, Ari AU - Song A AD - Department of Pediatrics, Incheon Sejong Hospital, Incheon, South Korea. FAU - Kim, Su Jin AU - Kim SJ AD - Department of Pediatrics, Inha University Hospital, Inha University College of Medicine, Incheon, South Korea. FAU - Kim, Min-Sun AU - Kim MS AD - Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea. FAU - Kim, Jiyeon AU - Kim J AD - Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea. FAU - Kim, Insung AU - Kim I AD - Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea. FAU - Bae, Ga Young AU - Bae GY AD - Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea. FAU - Seo, Eunseop AU - Seo E AD - Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea. FAU - Cho, Young Seok AU - Cho YS AD - Department of Nuclear Medicine and Molecular Imaging, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea. FAU - Choi, Joon Young AU - Choi JY AD - Department of Nuclear Medicine and Molecular Imaging, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea. FAU - Cho, Sung Yoon AU - Cho SY AD - Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea. FAU - Jin, Dong-Kyu AU - Jin DK AD - Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea. LA - eng PT - Journal Article DEP - 20210614 PL - Switzerland TA - Front Endocrinol (Lausanne) JT - Frontiers in endocrinology JID - 101555782 RN - 0 (Antithyroid Agents) RN - 554Z48XN5E (Methimazole) RN - 721M9407IY (Propylthiouracil) SB - IM MH - Adolescent MH - Antithyroid Agents/*therapeutic use MH - Child MH - Female MH - Goiter/*drug therapy MH - Graves Disease/*drug therapy MH - Humans MH - Male MH - Methimazole/*therapeutic use MH - Propylthiouracil/*therapeutic use MH - Remission Induction MH - Retrospective Studies MH - Treatment Outcome PMC - PMC8236938 OTO - NOTNLM OT - Graves' disease OT - antithyroid drugs OT - children OT - hyperthyroidism OT - remission COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2021/07/02 06:00 MHDA- 2021/12/21 06:00 PMCR- 2021/01/01 CRDT- 2021/07/01 06:56 PHST- 2021/03/30 00:00 [received] PHST- 2021/05/31 00:00 [accepted] PHST- 2021/07/01 06:56 [entrez] PHST- 2021/07/02 06:00 [pubmed] PHST- 2021/12/21 06:00 [medline] PHST- 2021/01/01 00:00 [pmc-release] AID - 10.3389/fendo.2021.687834 [doi] PST - epublish SO - Front Endocrinol (Lausanne). 2021 Jun 14;12:687834. doi: 10.3389/fendo.2021.687834. eCollection 2021.