1
|
Özer Y, Anık A, Sayılı U, Tercan U, Deveci Sevim R, Güneş S, Buhur Pirimoğlu M, Elmaoğulları S, Dündar I, Ökdemir D, Besci Ö, Jalilova A, Çiçek D, Singin B, Ulu ŞE, Turan H, Albayrak S, Kocabey Sütçü Z, Eklioğlu BS, Eren E, Çetinkaya S, Savaş-Erdeve Ş, Esen I, Demir K, Darcan Ş, Hatipoğlu N, Parlak M, Dursun F, Şıklar Z, Berberoğlu M, Keskin M, Orbak Z, Tezel B, Yürüker E, Keskinkılıç B, Kara F, Erginöz E, Darendeliler F, Evliyaoğlu O. High frequency of transient congenital hypothyroidism among infants referred for suspected congenital hypothyroidism from the Turkish National screening program: thyroxine dose may guide the prediction of transients. J Endocrinol Invest 2024; 47:2213-2224. [PMID: 38546931 PMCID: PMC11369008 DOI: 10.1007/s40618-024-02348-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 02/20/2024] [Indexed: 09/03/2024]
Abstract
PURPOSE We aimed to determine the frequency of transient congenital hypothyroidism (TCH) in 17 participating centers in Türkiye, evaluate the etiological distribution in permanent congenital hypothyroidism (PCH) cases, and investigate the role of laboratory and clinical findings in predicting TCH. METHODS This retrospective observational multicenter study included patients from 17 pediatric endocrinology centers identified by "National Newborn Screening Program" (NNSP) who were born in 2015 and followed for 6 years. Demographic, clinical, and laboratory information of the cases were compiled through the database http://cedd.saglik-network.org (CEDD-NET). RESULTS Of the 239 cases initially treated for CH, 128 (53.6%) were determined as transient in whom a trial of levothyroxine (LT4) withdrawal was performed at a median age of 36 (34-38) months. Among the patients with PCH (n = 111), thyroid dysgenesis was diagnosed in 39.6% (n = 44). The predictive factors for TCH were: LT4 dose at the withdrawal of treatment, and initial newborn blood screening (NBS)-TSH level. Based on the receiver operating characteristic (ROC) curve analysis to predict optimal cut-offs for TCH predictors, LT4 dose < 2.0 µg/kg/day at treatment discontinuation was predictive for TCH and was associated with 94.5% specificity and 55.7% sensitivity, with an area under the curve (AUC) of 0.802. The initial NBS-TSH level value < 45 µIU/mL was predictive for TCH with 93.1% specificity and 45.5% sensitivity, with an AUC of 0.641. In patients with eutopic thyroid gland only LT4 dose < 1.1 µg/kg/day at withdrawal time was predictive for TCH with 84.7% sensitivity and 40.4% specificity, with an AUC of 0.750. CONCLUSION According to our national follow-up data, the frequency of TCH was 53.6%. We determined the LT4 dose < 2.0 µg/kg/day at discontinuation of treatment and the initial NBS-TSH level < 45 µIU/mL as the best cut-off limits to predict TCH.
Collapse
Affiliation(s)
- Y Özer
- Department of Pediatric Endocrinology, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey.
| | - A Anık
- Department of Pediatric Endocrinology, Faculty of Medicine, Aydın Adnan Menderes University, Aydın, Turkey
| | - U Sayılı
- Department of Public Health, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - U Tercan
- Department of Pediatric Endocrinology, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - R Deveci Sevim
- Department of Pediatric Endocrinology, Faculty of Medicine, Aydın Adnan Menderes University, Aydın, Turkey
| | - S Güneş
- Department of Pediatric Endocrinology, Faculty of Medicine, Aydın Adnan Menderes University, Aydın, Turkey
| | - M Buhur Pirimoğlu
- Department of Pediatric Endocrinology, Faculty of Medicine, Bursa Uludağ University, Bursa, Turkey
| | - S Elmaoğulları
- Department of Pediatric Endocrinology, University of Health Sciences Turkey, Dr. Sami Ulus Maternity and Children's Research and Training Hospital, Ankara, Turkey
| | - I Dündar
- Department of Pediatric Endocrinology, Malatya Education and Research Hospital, Malatya, Turkey
| | - D Ökdemir
- Department of Pediatric Endocrinology, Faculty of Medicine, Fırat University, Elazığ, Turkey
| | - Ö Besci
- Department of Pediatric Endocrinology, Faculty of Medicine, Dokuz Eylül University, İzmir, Turkey
| | - A Jalilova
- Department of Pediatric Endocrinology, Faculty of Medicine, Ege University, Izmir, Turkey
| | - D Çiçek
- Department of Pediatric Endocrinology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - B Singin
- Department of Pediatric Endocrinology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Ş E Ulu
- Departments of Pediatric Endocrinology, Ümraniye Training and Research Hospital, Istanbul, Turkey
| | - H Turan
- Department of Pediatric Endocrinology, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - S Albayrak
- Department of Pediatric Endocrinology, Faculty of Medicine, Gaziantep University, Gaziantep, Turkey
| | - Z Kocabey Sütçü
- Department of Pediatric Endocrinology, Basaksehir Cam and Sakura City Hospital, Istanbul, Turkey
| | - B S Eklioğlu
- Department of Pediatric Endocrinology, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey
| | - E Eren
- Department of Pediatric Endocrinology, Faculty of Medicine, Bursa Uludağ University, Bursa, Turkey
| | - S Çetinkaya
- Department of Pediatric Endocrinology, University of Health Sciences Turkey, Dr. Sami Ulus Maternity and Children's Research and Training Hospital, Ankara, Turkey
| | - Ş Savaş-Erdeve
- Department of Pediatric Endocrinology, University of Health Sciences Turkey, Dr. Sami Ulus Maternity and Children's Research and Training Hospital, Ankara, Turkey
| | - I Esen
- Department of Pediatric Endocrinology, Faculty of Medicine, Fırat University, Elazığ, Turkey
| | - K Demir
- Department of Pediatric Endocrinology, Faculty of Medicine, Dokuz Eylül University, İzmir, Turkey
| | - Ş Darcan
- Department of Pediatric Endocrinology, Faculty of Medicine, Ege University, Izmir, Turkey
| | - N Hatipoğlu
- Department of Pediatric Endocrinology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - M Parlak
- Department of Pediatric Endocrinology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - F Dursun
- Departments of Pediatric Endocrinology, Ümraniye Training and Research Hospital, Istanbul, Turkey
| | - Z Şıklar
- Department of Pediatric Endocrinology, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - M Berberoğlu
- Department of Pediatric Endocrinology, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - M Keskin
- Department of Pediatric Endocrinology, Faculty of Medicine, Gaziantep University, Gaziantep, Turkey
| | - Z Orbak
- Department of Pediatric Endocrionology, Faculty of Medicine, Atatürk University, Erzurum, Turkey
| | - B Tezel
- Department of Child and Adolescents Health, Ministry of Health, General Directorate of Public Health, Ankara, Turkey
| | - E Yürüker
- Department of Child and Adolescents Health, Ministry of Health, General Directorate of Public Health, Ankara, Turkey
| | - B Keskinkılıç
- Department of Child and Adolescents Health, Ministry of Health, General Directorate of Public Health, Ankara, Turkey
| | - F Kara
- Department of Child and Adolescents Health, Ministry of Health, General Directorate of Public Health, Ankara, Turkey
| | - E Erginöz
- Department of Public Health, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - F Darendeliler
- Department of Pediatric Endocrinology, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - O Evliyaoğlu
- Department of Pediatric Endocrinology, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| |
Collapse
|
2
|
Ding X, Liu Z, Zhang B, Yang Y, Wang Y, Yu B, Long W. Permanent vs Transient Congenital Hypothyroidism in Chinese Children: Physical Growth and Predictive Nomogram. J Clin Endocrinol Metab 2024; 109:e1616-e1622. [PMID: 38104243 DOI: 10.1210/clinem/dgad739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 12/05/2023] [Accepted: 12/13/2023] [Indexed: 12/19/2023]
Abstract
CONTEXT Few reliable markers are available to distinguish transient congenital hypothyroidism (TCH) and permanent congenital hypothyroidism (PCH). Additionally, the differences in growth between TCH and PCH remain unclear. OBJECTIVE To investigate the growth of children with TCH and PCH and develop a nomogram for early differentiation of these forms. METHODS This retrospective study included children with TCH or PCH. The predictive efficacy of the prognostic predictors was analyzed using receiver operating characteristic analysis. Multivariate prediction models were developed. Measurements of growth were compared between groups. RESULTS Patients with TCH had lower initial thyroid-stimulating hormone (TSH) than those with PCH at newborn screening (NBS). The supplementary dose of levothyroxine (L-T4) gradually decreased with age in TCH but not in PCH. The area under the curve (AUC) values of the initial TSH, L-T4 dose at 1 year of age, and L-T4 dose at 2 years of age for distinguishing TCH from PCH were 0.698, 0.71, and 0.879, respectively. The predictive efficacy of the multivariate models at 1 and 2 years of age improved, with AUC values of 0.752 and 0.922, respectively. A nomogram was built based on the multivariate model at 1 year of age. The growth did not differ between children with TCH and those with PCH. However, at 1 year of age, girls with CH exhibited higher z-scores in terms of height and weight than boys with CH. CONCLUSION TSH at NBS and L-T4 doses during treatment can be used to distinguish between PCH and TCH early in life, and the predictive efficacy can be improved using multivariable models with a visualized nomogram. At 3 years of age, patients with TCH and PCH showed similar growth.
Collapse
Affiliation(s)
- Xuejing Ding
- Changzhou Medical Center, Changzhou Maternal and Child Health Care Hospital, Nanjing Medical University, Changzhou 213000, China
| | - Zhiwei Liu
- Changzhou Medical Center, Changzhou Maternal and Child Health Care Hospital, Nanjing Medical University, Changzhou 213000, China
| | - Bin Zhang
- Changzhou Medical Center, Changzhou Maternal and Child Health Care Hospital, Nanjing Medical University, Changzhou 213000, China
| | - Yuqi Yang
- Changzhou Medical Center, Changzhou Maternal and Child Health Care Hospital, Nanjing Medical University, Changzhou 213000, China
| | - Ying Wang
- Changzhou Medical Center, Changzhou Maternal and Child Health Care Hospital, Nanjing Medical University, Changzhou 213000, China
| | - Bin Yu
- Changzhou Medical Center, Changzhou Maternal and Child Health Care Hospital, Nanjing Medical University, Changzhou 213000, China
| | - Wei Long
- Changzhou Medical Center, Changzhou Maternal and Child Health Care Hospital, Nanjing Medical University, Changzhou 213000, China
| |
Collapse
|
3
|
Lee SH, Lee HG, Yang EM, Kim CJ. Comparison between transient and permanent congenital hypothyroidism on a thyroid function test after re-evaluation. Ann Pediatr Endocrinol Metab 2023; 28:245-250. [PMID: 38173380 PMCID: PMC10765033 DOI: 10.6065/apem.2244260.130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/31/2023] [Accepted: 07/07/2023] [Indexed: 01/05/2024] Open
Abstract
PURPOSE Congenital hypothyroidism (CH) is diagnosed with neonatal screening and is treated early in the neonatal period. Among these patients, transient CH (TCH) is included and requires re-evaluation. The purpose of this study was to find the best way to discontinue levothyroxine and to find trends in thyroid function tests (TFTs) after re-evaluation. METHODS We retrospectively reviewed 388 patients diagnosed with CH. They were classified as permanent CH (PCH) and TCH. The total number of the PCH and TCH groups was 83 (51 boys and 32 girls). We compared clinical parameters to predict TCH and to identify the trends of TFT. RESULTS The first thyroid-stimulating hormone (TSH) value after discontinuation and the average TSH value for 1, 2, and 3 years were all significantly higher in the PCH group (P<0.01). The first fT4 value after discontinuation and the average fT4 value for 1, 2, and 3 years were all significantly higher in the TCH group (P<0.01). The optimal cutoff value on the receiver operating characteristic curve for PCH prediction with an average of 3 years of TSH was greater than 9.05 μIU/mL, which was predicted with a sensitivity of 100% and a specificity of 100%. CONCLUSION When the TSH value ranges from 10 μIU/mL to 20 μIU/mL, clinicians can discontinue levothyroxine if the next result is around 10 μIU/mL or shows a decreasing trend.
Collapse
Affiliation(s)
- Song Han Lee
- Department of Pediatrics, Chonnam National University Medical School & Children's Hospital, Gwangju, Korea
| | - Hyun Gyung Lee
- Department of Pediatrics, Chonnam National University Medical School & Children's Hospital, Gwangju, Korea
| | - Eun Mi Yang
- Department of Pediatrics, Chonnam National University Medical School & Children's Hospital, Gwangju, Korea
| | - Chan Jong Kim
- Department of Pediatrics, Chonnam National University Medical School & Children's Hospital, Gwangju, Korea
| |
Collapse
|
4
|
Yu A, Alder N, Lain SJ, Wiley V, Nassar N, Jack M. Outcomes of lowered newborn screening thresholds for congenital hypothyroidism. J Paediatr Child Health 2023. [PMID: 37184332 DOI: 10.1111/jpc.16425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 04/16/2023] [Accepted: 04/26/2023] [Indexed: 05/16/2023]
Abstract
BACKGROUND Newborn screening (NBS) has largely eliminated the physical and neurodevelopmental effects of untreated congenital hypothyroidism (CH). Many countries, including Australia, have progressively lowered NBS bloodspot thyroid-stimulating hormone (b-TSH) thresholds. The impact of these changes is still unclear. OBJECTIVES To evaluate the performance of CH NBS following the reduction of b-TSH thresholds in New South Wales (NSW) and the Australian Capital Territory (ACT), Australia, from 15 to 8 mIU/L, and to determine the clinical outcomes of cases detected by these thresholds. METHODS NBS data of 346 849 infants born in NSW/ACT, Australia from 1 November, 2016-1 March, 2020 inclusive were analysed. A clinical audit was conducted on infants with a preliminary diagnosis of CH born between 1 January, 2016-1 December, 2020 inclusive. RESULTS The lowered b-TSH threshold (≥8 mIU/L, ~99.5th centile) detected 1668 infants (0.48%), representing an eight-fold increase in recall rate, of whom 212 of 1668 (12.7%) commenced thyroxine treatment. Of these 212 infants, 62 (29.2%) (including eight cases with a preliminary diagnosis of thyroid dysgenesis) had an initial b-TSH 8-14.9 mIU/L. The positive predictive value for a preliminary diagnosis of CH decreased from 74.3% to 12.8% with the lowered threshold. Proportionally, more pre-term infants received a preliminary CH diagnosis on screening with the lower threshold (16.1% of 62) than with the higher threshold (8.0% of 150). CONCLUSION Clinically relevant CH was detected using the lowered threshold, albeit at the cost of an eight-fold increase in recall rate. Further clinical and economic studies are required to determine whether benefits of lowered screening thresholds outweigh potential harms from false-positive results on infants, their families and NBS programs.
Collapse
Affiliation(s)
- Aolei Yu
- Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - Nelson Alder
- Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - Samantha J Lain
- Child Population and Translational Health Research, Children's Hospital at Westmead Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Veronica Wiley
- New South Wales Newborn Screening Program, The Children's Hospital at Westmead, Sydney, New South Wales, Australia
- Disciplines of Genetic Medicine and Paediatrics and Child Health, University of Sydney, Sydney, New South Wales, Australia
| | - Natasha Nassar
- Child Population and Translational Health Research, Children's Hospital at Westmead Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Michelle Jack
- University Centre for Rural Health, Lismore, NSW 2480, University of Sydney, Lismore, Australia, Australia
| |
Collapse
|
5
|
Bontemps SH, Legagneur C, Guéant-Rodriguez RM, Remen T, Luc A, Renard E. Congenital hypothyroidism in children with eutopic gland or thyroid hemiagenesis: prognostic factors for transient vs. permanent hypothyroidism. J Pediatr Endocrinol Metab 2023; 36:353-363. [PMID: 36798001 DOI: 10.1515/jpem-2022-0101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 01/29/2023] [Indexed: 02/18/2023]
Abstract
OBJECTIVES More than one third of children with congenital hypothyroidism (CH) and thyroid gland in situ (or eutopic gland) have transient hypothyroidism. It remains difficult to determine early on whether hypothyroidism will be transient which may cause overtreatment and its complications in these children. Our primary aim was to determine prognostic factors for transient hypothyroidism in children with congenital hypothyroidism and eutopic gland or thyroid hemiagenesis. METHODS We retrospectively reviewed medical records of 111 children, born between 1996 and 2017, diagnosed with congenital hypothyroidism and eutopic gland or hemiagenesis and treated at the Nancy Regional and University Hospital. RESULTS Fifty four infants (48.6%) had permanent congenital hypothyroidism (PCH) and 57 (51.4%) transient congenital hypothyroidism (TCH). Prognostic factors for TCH included prematurity, twin pregnancy, low birth weight and Apgar score <7, while low FT3 at diagnosis, maternal levothyroxine treatment, a family history of thyroid dysfunction and TSH ≥10 mUI/L while receiving treatment were associated with PCH. Knee epiphyses on X-ray at diagnosis were absent only in children with PCH. The median levothyroxine dose during follow-up was significantly lower in the TCH group compared to the PCH group. A levothyroxine dose of ≤3.95, ≤2.56, ≤2.19 and ≤2.12 μg/kg/day at 6 months, 1, 2 and 3 years of follow-up, respectively, had the best sensitivity-to-specificity ratio for predicting TCH. CONCLUSIONS Even though it remains difficult to predict the course of hypothyroidism at diagnosis, we were able to identify several prognostic factors for TCH including perinatal problems and lower levothyroxine requirements that can guide the physician on the evolution of hypothyroidism. Clinical Trial Registration Number: NCT04712760.
Collapse
Affiliation(s)
| | - Carole Legagneur
- Department of Pediatrics, University Hospital of Nancy, Vandoeuvre-Lès-Nancy, France
| | - Rosa-Maria Guéant-Rodriguez
- Department of Biochemistry, University Hospital of Nancy, Vandoeuvre-Lès-Nancy, France.,Institut national de la santé et de la recherche médicale 1256 [National Institute of Health and Medical Research], University of Lorraine, N-GERE Nutrition Genetics and Environmental Risks, Vandoeuvre-Lès-Nancy, France
| | - Thomas Remen
- MPI Department, Methodology, Data Management and Statistic Unit, Délégation à la Recherche Clinique et à l'Innovation [Delegation for Clinical Research and Innovation], University Hospital of Nancy, Vandœuvre-Lès-Nancy, France
| | - Amandine Luc
- MPI Department, Methodology, Data Management and Statistic Unit, Délégation à la Recherche Clinique et à l'Innovation [Delegation for Clinical Research and Innovation], University Hospital of Nancy, Vandœuvre-Lès-Nancy, France
| | - Emeline Renard
- Department of Pediatrics, University Hospital of Nancy, Vandoeuvre-Lès-Nancy, France.,Institut national de la santé et de la recherche médicale 1256 [National Institute of Health and Medical Research], University of Lorraine, N-GERE Nutrition Genetics and Environmental Risks, Vandoeuvre-Lès-Nancy, France
| |
Collapse
|
6
|
Rose SR, Wassner AJ, Wintergerst KA, Yayah-Jones NH, Hopkin RJ, Chuang J, Smith JR, Abell K, LaFranchi SH, Wintergerst KA, Yayah Jones NH, Hopkin RJ, Chuang J, Smith JR, Abell K, LaFranchi SH, Wintergerst KA, Bethin KE, Brodsky JL, Jelley DH, Marshall BA, Mastrandrea LD, Lynch JL, Laskosz L, Burke LW, Geleske TA, Holm IA, Introne WJ, Jones K, Lyons MJ, Monteil DC, Pritchard AB, Smith Trapane PL, Vergano SA, Weaver K, Alexander AA, Cunniff C, Null ME, Parisi MA, Ralson SJ, Scott J, Spire P. Congenital Hypothyroidism: Screening and Management. Pediatrics 2023; 151:190308. [PMID: 36827521 DOI: 10.1542/peds.2022-060420] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/24/2022] [Indexed: 12/23/2022] Open
Abstract
ABSTRACT Untreated congenital hypothyroidism (CH) leads to intellectual disabilities. Prompt diagnosis by newborn screening (NBS) leading to early and adequate treatment results in grossly normal neurocognitive outcomes in adulthood. However, NBS for hypothyroidism is not yet established in all countries globally. Seventy percent of neonates worldwide do not undergo NBS.The initial treatment of CH is levothyroxine, 10 to 15 mcg/kg daily. The goals of treatment are to maintain consistent euthyroidism with normal thyroid-stimulating hormone and free thyroxine in the upper half of the age-specific reference range during the first 3 years of life. Controversy remains regarding detection of thyroid dysfunction and optimal management of special populations, including preterm or low-birth weight infants and infants with transient or mild CH, trisomy 21, or central hypothyroidism.Newborn screening alone is not sufficient to prevent adverse outcomes from CH in a pediatric population. In addition to NBS, the management of CH requires timely confirmation of the diagnosis, accurate interpretation of thyroid function testing, effective treatment, and consistent follow-up. Physicians need to consider hypothyroidism in the face of clinical symptoms, even if NBS thyroid test results are normal. When clinical symptoms and signs of hypothyroidism are present (such as large posterior fontanelle, large tongue, umbilical hernia, prolonged jaundice, constipation, lethargy, and/or hypothermia), measurement of serum thyroid-stimulating hormone and free thyroxine is indicated, regardless of NBS results.
Collapse
Affiliation(s)
| | | | | | - Nana-Hawa Yayah-Jones
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Robert J Hopkin
- Division of Endocrinology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | | | | | - Katherine Abell
- Departments of Pediatrics, Division of Endocrinology & Diabetes, Wendy Novak Diabetes Center, University of Louisville, School of Medicine, Norton Children's Hospital, Louisville, Kentucky.,Division of Genetics and Genomic Medicine, Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri
| | - Stephen H LaFranchi
- Department of Pediatrics, Doernbecher Children's Hospital, Oregon Health & Sciences University, Portland, Oregon
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
7
|
Itonaga T, Hasegawa Y, Higuchi S, Satoh M, Sawada H, Shimura K, Takahashi I, Takubo N, Nagasaki K. Knowns and unknowns about congenital hypothyroidism: 2022 update. Clin Pediatr Endocrinol 2023; 32:11-25. [PMID: 36761498 PMCID: PMC9887299 DOI: 10.1297/cpe.2022-0016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 10/13/2022] [Indexed: 11/19/2022] Open
Abstract
Several excellent guidelines and expert opinions on congenital hypothyroidism (CH) are currently available. Nonetheless, these guidelines do not address several issues related to CH in detail. In this review, the authors chose the following seven clinical issues that they felt were especially deserving of closer scrutiny in the hope that drawing attention to them through discussion would help pediatric endocrinologists and promote further interest in the treatment of CH. 1. How high should the levothyroxine (L-T4) dose be for initial treatment of severe and permanent CH? 2. What is the optimal method for monitoring treatment of severe CH? 3. At what level does maternal iodine intake during pregnancy affect fetal and neonatal thyroid function? 4. Does serum thyroglobulin differ between patients with a dual oxidase 2 (DUOX2) variants and those with excess iodine? 5. Who qualifies for a genetic diagnosis? 6. What is the best index for distinguishing transient and permanent CH? 7. Is there any cancer risk associated with CH? The authors discussed these topics and jointly edited the manuscript to improve the understanding of CH and related issues.
Collapse
Affiliation(s)
- Tomoyo Itonaga
- Department of Pediatrics, Oita University Faculty of
Medicine, Oita, Japan
| | - Yukihiro Hasegawa
- Division of Endocrinology and Metabolism, Tokyo Metropolitan
Children’s Medical Center, Tokyo, Japan
| | - Shinji Higuchi
- Division of Pediatric Endocrinology and Metabolism,
Children’s Medical Center, Osaka City General Hospital, Osaka, Japan
| | - Mari Satoh
- Department of Pediatrics, Toho University Omori Medical
Center, Tokyo, Japan
| | - Hirotake Sawada
- Division of Pediatrics, Faculty of Medicine, University of
Miyazaki Hospital, Miyazaki, Japan
| | - Kazuhiro Shimura
- Department of Pediatrics, Keio University School of Medicine,
Tokyo, Japan
| | - Ikuko Takahashi
- Department of Pediatrics, Akita University Graduate School of
Medicine, Akita, Japan
| | - Noriyuki Takubo
- Department of Pediatrics and Adolescent Medicine, Juntendo
University Graduate School of Medicine, Tokyo, Japan
| | - Keisuke Nagasaki
- Department of Pediatrics, Niigata University Medical and
Dental Hospital, Niigata, Japan
| |
Collapse
|
8
|
Nagasaki K, Minamitani K, Nakamura A, Kobayashi H, Numakura C, Itoh M, Mushimoto Y, Fujikura K, Fukushi M, Tajima T. Guidelines for Newborn Screening of Congenital Hypothyroidism (2021 Revision). Clin Pediatr Endocrinol 2022; 32:26-51. [PMID: 36761493 PMCID: PMC9887297 DOI: 10.1297/cpe.2022-0063] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 11/06/2022] [Indexed: 12/04/2022] Open
Abstract
Purpose of developing the guidelines: Newborn screening (NBS) for congenital hypothyroidism (CH) was started in 1979 in Japan, and early diagnosis and treatment improved the intelligence prognosis of CH patients. The incidence of CH was once about one in 5,000-8,000 births, but has been increased with diagnosis of subclinical CH. The disease requires continuous treatment and specialized medical facilities should conduct differential diagnosis and treatment in patients who are positive by NBS to avoid unnecessary treatment. The Guidelines for Mass Screening of Congenital Hypothyroidism (1998 version) were developed by the Mass Screening Committee of the Japanese Society for Pediatric Endocrinology in 1998. Subsequently, the guidelines were revised in 2014. Here, we have added minor revisions to the 2014 version to include the most recent findings. Target disease/conditions: Primary congenital hypothyroidism. Users of the Guidelines: Physician specialists in pediatric endocrinology, pediatric specialists, physicians referring pediatric practitioners, general physicians, laboratory technicians in charge of mass screening, and patients.
Collapse
Affiliation(s)
- Keisuke Nagasaki
- Mass Screening Committee, Japanese Society for Pediatric Endocrinology
- Thyroid Committee, Japanese Society for Pediatric Endocrinology
- Division of Pediatrics, Department of Homeostatic Regulation and Development, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Kanshi Minamitani
- Thyroid Committee, Japanese Society for Pediatric Endocrinology
- Department of Pediatrics, Teikyo University Chiba Medical Center, Chiba, Japan
| | - Akie Nakamura
- Mass Screening Committee, Japanese Society for Pediatric Endocrinology
- Department of Pediatrics, Hokkaido University School of Medicine, Sapporo, Japan
| | - Hironori Kobayashi
- Mass Screening Committee, Japanese Society for Pediatric Endocrinology
- Laboratories Division, Shimane University Hospital, Izumo, Japan
| | - Chikahiko Numakura
- Mass Screening Committee, Japanese Society for Pediatric Endocrinology
- Department of Pediatrics, Yamagata University School of Medicine, Yamagata, Japan
| | - Masatsune Itoh
- Thyroid Committee, Japanese Society for Pediatric Endocrinology
- Department of Pediatrics, Kanazawa Medical University, Kanazawa, Japan
| | - Yuichi Mushimoto
- Thyroid Committee, Japanese Society for Pediatric Endocrinology
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kaori Fujikura
- Japanese Society for Neonatal Screening
- Sapporo City Institute of Public Health, Sapporo, Japan
| | - Masaru Fukushi
- Japanese Society for Neonatal Screening
- Sapporo Immuno Diagnostic Laboratory (IDL), Sapporo, Japan
| | - Toshihiro Tajima
- Mass Screening Committee, Japanese Society for Pediatric Endocrinology
- Department of Pediatrics, Jichi Medical University Tochigi Children's Medical Center, Tochigi, Japan
| |
Collapse
|
9
|
Dündar İ, Büyükavcı MA, Çiftçi N. Etiological, clinical, and laboratory evaluation of congenital hypothyroidism and determination of levothyroxine (LT4) dose at treatment interruption in differentiating permanent vs. transient patients. Turk J Med Sci 2022; 52:1863-1871. [PMID: 36945978 PMCID: PMC10390198 DOI: 10.55730/1300-0144.5533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 07/24/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Congenital hypothyroidism (CH) is the most common cause of preventable but irreversible mental retardation in children, although the risk has been widely abolished by national neonatal screening programs. The aim of this study was to determine, (a) the cause of CH, (b) the etiological cause of persistent CH and (c) to investigate the role of laboratory and clinical data in predicting persistent and transient CH. METHODS Patients diagnosed with CH, who started L-thyroxine treatment and were followed up for at least three years were included. Patient data were reviewed retrospectively. Serum thyroid hormones were measured four weeks after discontinuation of therapy at age three or earlier. Cases with a thyroid-stimulating hormone (TSH) value of >10 mIU/mL were accepted as permanent hypothyroidism, while cases with normal TSH values for six months after cessation were accepted as transient hypothyroidism. RESULTS There were 232 treated cases, of whom 108 (46.6%) were female, and 169 (72.8%) were eventually diagnosed with transient CH. The best cut-off point for predicting permanent status was determined as LT4 cut-off dose ≥1.45 mcg/kg/day. The median (range) duration of L-thyroxine treatment in transient hypothyroid cases was 24 (range: 6-36) months, and treatment was discontinued before the age of three years in 64%. DISCUSSION There were 232 treated cases, of whom 108 (46.6%) were female, and 169 (72.8%) were eventually diagnosed with transient CH. The best cut-off point for predicting permanent status was determined as LT4 cut-off dose ≥1.45 mcg/kg/day. The median (range) duration of L-thyroxine treatment in transient hypothyroid cases was 24 (range: 6-36) months, and treatment was discontinued before the age of three years in 64%.
Collapse
Affiliation(s)
- İsmail Dündar
- Department of Pediatric Endocrinology, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Mehmet Akif Büyükavcı
- Department of Developmental Pediatrics, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Nurdan Çiftçi
- Department of Pediatric Endocrinology, Malatya Training and Research Hospital, Malatya, Turkey
| |
Collapse
|
10
|
Donbaloğlu Z, Çetinkaya S, Aycan Z, Karacan Küçükali G, Şakar M, Savaş-Erdeve Ş. Evaluation of permanent and transient congenital hypothyroidism in cases referred from National Neonatal Screening Program. J Paediatr Child Health 2022; 58:1431-1438. [PMID: 35686887 DOI: 10.1111/jpc.16025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 04/15/2022] [Accepted: 05/12/2022] [Indexed: 11/29/2022]
Abstract
AIM The incidence of congenital hypothyroidism (CH) has increased world-wide. Lowering cut-off in screening programs has led to an increase in the rate of transient CH. We aimed to evaluate the rates of permanent and transient CH in cases referred from the screening program and to investigate the clinical and laboratory factors which predict transient CH. METHODS In 109 cases referred from the neonatal screening program to our hospital, from September 2015 to April 2018, 52 primarily diagnosed CH cases were prospectively evaluated. Regularly followed up, 44 CH cases were included in the study at the end of 3 years. RESULTS 38.2 ± 1.31 weeks (w) and mean birthweight 3021.3 ± 389.6 gram (g) in the transient CH group; both were significantly lower compared to permanent CH cases with 39.06 ± 1.33 w and 3375.3 ± 425.3 g (P = 0.025, P = 0.007) respectively. Transient CH rate was found to be 50% (all hypoplastic) in the dysgenesis group and 73.3% in groups with normal and hyperplasic thyroid gland. While fT4 , thyroid-stimulating hormone, and thyroglobulin levels at diagnosis do not predict transient/permanent CH, levothyroxine (LT-4) dosage was significantly lower in the transient CH group in all years. The optimal cut-off value with highest sensitivity and specificity for LT-4 dosage as a predictive marker to differentiate transient CH from permanent CH was 2.27 μg/kg/day (P = 0.004; sensitivity: 71%, specificity: 83%) at 1st year, 1.85 μg /kg/day (P = 0.013; sensitivity: 66%, specificity: 72%) at 2nd year and 1.69 μg /kg/day at 3rd year (P < 0.0001; sensitivity: 90%, specificity: 83%). CONCLUSION Transient CH is more frequent than expected. Our results suggest that LT-4 requirement may be a good marker for predicting transient CH, while thyroid hormone levels at the time of diagnosis do not significantly predict permanent and transient CH. Therefore, infants with CH requiring LT-4 doses <2.27 μg/kg/day at 1st year, <1.85 μg /kg/day at 2nd year may be re-evaluated earlier to discriminate transient CH rather than at 3 years of age.
Collapse
Affiliation(s)
- Zeynep Donbaloğlu
- Dr. Sami Ulus Obstetrics and Gynecology, Children's Health and Disease Training and Research Hospital, Clinic of Pediatric Endocrinology, Ankara, Turkey
| | - Semra Çetinkaya
- Dr. Sami Ulus Obstetrics and Gynecology, Children's Health and Disease Training and Research Hospital, Clinic of Pediatric Endocrinology, Ankara, Turkey
| | - Zehra Aycan
- Dr. Sami Ulus Obstetrics and Gynecology, Children's Health and Disease Training and Research Hospital, Clinic of Pediatric Endocrinology, Ankara, Turkey
| | - Gülin Karacan Küçükali
- Dr. Sami Ulus Obstetrics and Gynecology, Children's Health and Disease Training and Research Hospital, Clinic of Pediatric Endocrinology, Ankara, Turkey
| | - Merve Şakar
- Dr. Sami Ulus Obstetrics and Gynecology, Children's Health and Disease Training and Research Hospital, Clinic of Pediatric Endocrinology, Ankara, Turkey
| | - Şenay Savaş-Erdeve
- Dr. Sami Ulus Obstetrics and Gynecology, Children's Health and Disease Training and Research Hospital, Clinic of Pediatric Endocrinology, Ankara, Turkey
| |
Collapse
|
11
|
Peters C, Schoenmakers N. MECHANISMS IN ENDOCRINOLOGY: The pathophysiology of transient congenital hypothyroidism. Eur J Endocrinol 2022; 187:R1-R16. [PMID: 35588090 PMCID: PMC9254299 DOI: 10.1530/eje-21-1278] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 05/19/2022] [Indexed: 11/08/2022]
Abstract
Transient congenital hypothyroidism (TCH) refers to congenital hypothyroidism which spontaneously resolves in the first few months or years of life. Currently, there is a paucity of reliable markers predicting TCH at diagnosis, and the diagnosis is established following the withdrawal of levothyroxine therapy around 3 years of age. The incidence of TCH is increasing, and it is a major contributor to the overall increase in the incidence of CH in recent studies. Both genetic factors, in particular mutations affecting DUOX2 and DUOXA2, and environmental factors, for example, iodine deficiency and excess, anti- TSHR antibodies and exposure to antithyroid or iodine-rich medications, may cause TCH. Resolution of TCH in childhood may reflect both normal thyroid physiology (decreased thyroid hormone biosynthesis requirements after the neonatal period) and clearance or cessation of environmental precipitants. The relative contributions and interactions of genetic and environmental factors to TCH, and the extent to which TCH may be prevented, require evaluation in future population-based studies.
Collapse
Affiliation(s)
- Catherine Peters
- Department of Endocrinology, Great Ormond Street Hospital for Children, London, UK
| | - Nadia Schoenmakers
- University of Cambridge Metabolic Research Laboratories, Wellcome Trust-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
- Correspondence should be addressed to N Schoenmakers;
| |
Collapse
|
12
|
Shakerian N, Mard-Soltani M, Nasri S, Rasaee MJ, Khalili S. Different combinations of monoclonal antibodies and polyclonal antibodies in the design of neonatal hypothyroidism diagnostic kit. Appl Biochem Biotechnol 2022; 194:3167-3181. [PMID: 35349083 DOI: 10.1007/s12010-022-03888-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 03/14/2022] [Indexed: 11/25/2022]
Abstract
Neonatal hypothyroidism is a deficiency of thyroid hormones at birth that can cause lifelong mental and physical disorders in humans. Lack of timely detection could lead to irreversible damage by neonatal hypothyroidism. However, it could be managed quickly and efficiently via timely diagnosis. The screening programs rely on immunoassays to diagnose neonatal hypothyroidism in most countries. This method is time-consuming, needs laboratory equipment, and should be performed by trained and skilled technicians. Given these circumstances, the ELISA method is not a preferable method for the diagnosing of neonatal hypothyroidism. However, it can be used as a confirmatory method in infants with suspected and unknown neonatal hypothyroidism. In the present study, the homemade SR95-1, SR95-2, and SR95-3 anti-β-TSH polyclonal and the commercially available monoclonal antibodies were used to detect β-TSH in a rapid assay kit design hypothyroidism screening. To design the kit, the different combinations of the antibodies were used to establish a sandwich immune-chromatography method. The designed rapid neonatal hypothyroidism tests were used to measure neonatal β-TSH in 100 dry blood samples. This study showed that the best antibody pair in terms of sensitivity is the SR95-1 antibody as capture antibody and the SR95-2 as a conjugated antibody. Using 100 clinical samples, the designed assay was shown to have 94% sensitivity, 83% specificity, and 94% accuracy. The results showed that polyclonal antibodies (SR95-1 as capture) and SR95-2 (as detector) antibodies can detect the reference range of β-TSH in dried blood samples and can be used in the screening of neonatal hypothyroidism.
Collapse
Affiliation(s)
- Neda Shakerian
- Department of Biology, Payame Noor University, Tehran, Iran
| | - Maysam Mard-Soltani
- Department of Clinical Biochemistry, Faculty of Medical Sciences, Dezful University of Medical Sciences, Dezful, Iran.
| | - Sima Nasri
- Department of Biology, Payame Noor University, Tehran, Iran
| | - Mohammad Javad Rasaee
- Department of Medical Biotechnology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Saeed Khalili
- Department of Biology Sciences, Shahid Rajaee Teacher Training University, Tehran, Iran
| |
Collapse
|
13
|
Barry Y, Mandereau-Bruno L, Bonaldi C, Cheillan D, Coutant R, Léger J, Regnault N. Prevalence and Determinants of Transient Congenital Hypothyroidism in Children With Eutopic Gland in France: A Retrospective Cohort Study. J Clin Endocrinol Metab 2022; 107:e1501-e1509. [PMID: 34850038 DOI: 10.1210/clinem/dgab854] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Indexed: 11/19/2022]
Abstract
CONTEXT The increase in the incidence of congenital hypothyroidism (CH) reported worldwide may partly be explained by an increase in the transient form of CH. OBJECTIVE We aimed to estimate the proportion of transient CH (TCH) in France, and to identify associated neonatal and young child characteristics. METHODS We used probabilistic record linkage to link children with eutopic gland born between 2006 and 2012 recorded in the national French CH registry and the French national health data system (SNDS). Of the 703 children recorded, 484 (68.8%) were linked. We retrospectively examined reimbursement for oral levothyroxine (LT4) between January 1, 2006, and December 31, 2017. Children who had discontinued treatment for 6 months or more before December 31, 2017, were classified as having TCH. We used a Cox model to examine the factors associated with TCH. RESULTS Among the main study sample (n = 471), 53.5% were female, 14.2% were preterm, and 13.8% had low birth weight. One-quarter (n = 111, 24.3%) had mild CH (thyroid-stimulating hormone [TSH] < 50 mU/L, serum) at diagnosis and a median LT4 dose at treatment initiation of 30 μg/day. One-third (n = 155, 32.9%) had TCH. Premature birth (adjusted hazard ratio = 2.1 [1.0-4.2]), a TSH < 50 mU/L at CH screening (7.4 [3.2-17.1]), LT4 dose received at 12 months of age (0.98 [0.97-0.99, P = 0.003]), congenital cardiac malformations (6.6 [1.5-29.0]), and year of birth (1.2 [1.1-1.4]) were all associated with TCH. CONCLUSION One-third of the children had TCH, and it was associated with several characteristics at birth and postpartum. These data are useful for CH medical management and epidemiological surveillance.
Collapse
Affiliation(s)
- Yaya Barry
- Santé Publique France, the French National Public Health Agency, Non-Communicable Diseases and Trauma Division, Saint-Maurice, France
| | - Laurence Mandereau-Bruno
- Santé Publique France, the French National Public Health Agency, Data Science Division, Saint-Maurice, France
| | - Christophe Bonaldi
- Santé Publique France, the French National Public Health Agency, Data Science Division, Saint-Maurice, France
| | - David Cheillan
- Univ Lyon, CarMeN laboratory, INSERM- U1060, INRAE, INSA Lyon, Université Claude Bernard Lyon 1, Charles Mérieux Medical School, Pierre-Bénite, France
- Hospices Civils de Lyon, Lyon, France
- Unité Maladies Héréditaires du Métabolisme, Service de Biochimie et Biologie Moléculaire Grand Est, Centre de Biologie et de Pathologie Est, Hospices Civils de Lyon, Bron, France
| | - Régis Coutant
- CHU-Angers, Unité Endocrinologie Diabétologie Pédiatrique and Centre des Maladies Rares de la Réceptivité Hormonale, Angers, France
| | - Juliane Léger
- Department of Pediatric Endocrinology Diabetology, Reference Centre for Endocrine Growth and Development Diseases, Assistance Publique-Hôpitaux de Paris, Robert Debré University Hospital, Paris, France
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR, DHU Protect, Paris, France
- Paris Diderot University, Sorbonne Paris Cite´, Paris, France
| | - Nolwenn Regnault
- Santé Publique France, the French National Public Health Agency, Non-Communicable Diseases and Trauma Division, Saint-Maurice, France
| |
Collapse
|
14
|
Marr A, Yokubynas N, Tang K, Saleh D, Wherrett DK, Stein R, Bassilious E, Chakraborty P, Lawrence SE. Transient vs Permanent Congenital Hypothyroidism in Ontario, Canada: Predictive Factors and Scoring System. J Clin Endocrinol Metab 2022; 107:638-648. [PMID: 34726229 PMCID: PMC8851917 DOI: 10.1210/clinem/dgab798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Indexed: 12/14/2022]
Abstract
CONTEXT The apparent increased incidence of congenital hypothyroidism (CH) is partly due to increased detection of transient disease. OBJECTIVE This work aims to identify predictors of transient CH (T-CH) and establish a predictive tool for its earlier differentiation from permanent CH (P-CH). METHODS A retrospective cohort study was conducted of patients diagnosed with CH from 2006 to 2015 through Newborn Screening Ontario (NSO). RESULTS Of 469 cases, 360 (76.8%) were diagnosed with P-CH vs 109 (23.2%) with T-CH. Doses of levothyroxine predicting T-CH were less than 3.9 μg/kg at age 6 months, less than 3.0 μg/kg at ages 1 and 2 years, and less than 2.5 μg/kg at age 3 years. Descriptive statistics and multivariable logistic modeling demonstrated several diverging key measures between patients with T-CH vs P-CH, with optimal stratification at age 1 year. Thyroid imaging was the strongest predictor (P < .001). Excluding imaging, significant predictors in the first year of life included thyroxine dose/kg (P < .001-.002), increase in thyrotropin (TSH) above the reference interval during treatment (P = .002), screening TSH (P = .03), and a history of maternal thyroid disease (P = .02). Based on the 1-year model without imaging, a risk score was developed to identify children with T-CH who may benefit from an earlier trial off therapy, to reduce excess medicalization and health care costs. CONCLUSION A levothyroxine dose of less than 3 μg/kg at ages 1 and 2 years and less than 2.5 μg/kg at age 3 years can be predictive of T-CH. A novel risk score was developed that can be clinically applied to predict the likelihood of a successful trial off therapy for a given patient at age 1 year.
Collapse
Affiliation(s)
- Alexa Marr
- University of Ottawa, Faculty of Medicine, Ottawa, Ontario, K1H 8M5, Canada
- Division of Endocrinology and Metabolism, Children’s Hospital of Eastern Ontario, Ontario, K1H 8L1, Canada
| | - Nicole Yokubynas
- University of Ottawa, Faculty of Medicine, Ottawa, Ontario, K1H 8M5, Canada
| | - Ken Tang
- CHEO Research Institute, Ottawa, Ontario, K1H 5B2, Canada
| | - David Saleh
- Department of Pediatrics, Queen’s University, Kingston, Ontario, K7L 3N6, Canada
| | - Diane K Wherrett
- Division of Endocrinology, Hospital for Sick Children, University of Toronto, Toronto, Ontario, M5G 1X8, Canada
| | - Robert Stein
- Division of Endocrinology and Metabolism, London Health Sciences Center, London, Ontario, N6A 5W9, Canada
| | - Ereny Bassilious
- Division of Endocrinology and Metabolism, McMaster Children’s Hospital, Hamilton, Ontario, L8N 3Z5, Canada
| | - Pranesh Chakraborty
- University of Ottawa, Faculty of Medicine, Ottawa, Ontario, K1H 8M5, Canada
- Division of Metabolics, Children’s Hospital of Eastern Ontario, Ottawa, Ontario, K1H 8L1, Canada
- Newborn Screening Ontario, Ottawa, Ontario, K1H 8L1, Canada
| | - Sarah E Lawrence
- University of Ottawa, Faculty of Medicine, Ottawa, Ontario, K1H 8M5, Canada
- Division of Endocrinology and Metabolism, Children’s Hospital of Eastern Ontario, Ontario, K1H 8L1, Canada
- Correspondence: Sarah E. Lawrence, MD, Division of Endocrinology and Metabolism, Children’s Hospital of Eastern Ontario, 5109-401 Smyth Rd, Ottawa, Ontario, K1H 8L1, Canada.
| |
Collapse
|
15
|
Tuli G, Munarin J, De Sanctis L. Diagnostic Re-Evaluation and Potential Predictor Factors of Transient and Permanent Congenital Hypothyroidism in Eutopic Thyroid Gland. J Clin Med 2021; 10:jcm10235583. [PMID: 34884283 PMCID: PMC8658106 DOI: 10.3390/jcm10235583] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 11/19/2021] [Accepted: 11/26/2021] [Indexed: 12/19/2022] Open
Abstract
Background: The incidence of congenital hypothyroidism (CH) has increased over the years, and many predictors for detecting newborns with transient forms (TCH) as early as possible have been considered. Methods: All newborns diagnosed with primary CH and eutopic gland in the Piedmont region of Italy in the period of January 2014–June 2019 were enrolled and re-evaluated at the age of 2 years. Results: 105 newborns were diagnosed with CH during the study period. Dyshormonogenesis was observed in 55/105. At re-evaluation, we found that 52.7% had permanent CH (PCH), while 47.3% had TCH. Male/female rate, TSH levels at diagnosis, levothyroxine requirement at withdrawal and extra-thyroid congenital malformations rate were higher in the PCH group (p = 0.02, p = 0.009, p = 0.02 and p = 0.01), while fT4 levels at diagnosis were lower (p = 0.03). Sensitivity of 72.4% and specificity of 80.7% for serum TSH above 60 mcUI/mL, sensitivity of 73% and specificity of 72.4% for serum fT4 level below 7.2 pg/mL and sensitivity of 66% and specificity of 68% for drug requirement above 2.25 mcg/kg/day were observed in PCH. Conclusions: Demographic, clinical and hormonal data at diagnosis and levothyroxine requirement during the first two years should be adequately monitored to identify infants who are most likely to discontinue therapy after the age of 24 months.
Collapse
Affiliation(s)
- Gerdi Tuli
- Department of Pediatric Endocrinology, Regina Margherita Children’s Hospital, City of Health and Science University Hospital of Turin, 10126 Turin, Italy; (J.M.); (L.D.S.)
- Department of Public Health and Pediatric Sciences, University of Turin, 10124 Turin, Italy
- Correspondence: ; Tel./Fex: +39-011-313-1775
| | - Jessica Munarin
- Department of Pediatric Endocrinology, Regina Margherita Children’s Hospital, City of Health and Science University Hospital of Turin, 10126 Turin, Italy; (J.M.); (L.D.S.)
- Department of Public Health and Pediatric Sciences, University of Turin, 10124 Turin, Italy
| | - Luisa De Sanctis
- Department of Pediatric Endocrinology, Regina Margherita Children’s Hospital, City of Health and Science University Hospital of Turin, 10126 Turin, Italy; (J.M.); (L.D.S.)
- Department of Public Health and Pediatric Sciences, University of Turin, 10124 Turin, Italy
| |
Collapse
|
16
|
Perri K, De Mori L, Tortora D, Calevo MG, Allegri AEM, Napoli F, Patti G, Fava D, Crocco M, Schiavone M, Casalini E, Severino M, Rossi A, Di Iorgi N, Gastaldi R, Maghnie M. Cognitive and White Matter Microstructure Development in Congenital Hypothyroidism and Familial Thyroid Disorders. J Clin Endocrinol Metab 2021; 106:e3990-e4006. [PMID: 34105732 DOI: 10.1210/clinem/dgab412] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Indexed: 12/25/2022]
Abstract
CONTEXT Children with congenital hypothyroidism (CH) are at risk for suboptimal neurodevelopment. OBJECTIVES To evaluate neurocognitive function and white matter microstructure in children with permanent or transient CH and to correlate these findings with disease severity. DESIGN, PARTICIPANTS AND METHODS A retrospective and prospective observational study was conducted in 39 children with permanent or transient CH, and in 39 healthy children. Cognitive function was assessed by Wechsler Intelligence Scale, Fourth Edition, and by other tests; the white matter microstructure was investigated by 3 Tesla magnetic resonance imaging. RESULTS Children with permanent CH have lower cognitive scores at a median age of 9.5 years than those with transient CH and controls. An IQ score between 71 and 84 was found in 28.6% of permanent CH and of <70 (P = 0.06) in 10.7%. The Processing Speed Index (PSI; P = 0.004), sustained visual attention (P = 0.02), reading speed (P = 0.0001), written calculations (P = 0.002), and numerical knowledge (P = 0.0001) were significantly lower than controls. Children born to mothers with Hashimoto's thyroiditis have significantly lower IQ values (P = 0.02), Working Memory Index (P = 0.03), and PSI (P = 0.02). Significantly lower IQ and Verbal Comprehension Index values were found in children with a family history of thyroid disorders (P = 0.004 and P = 0.009, respectively). In children with permanent CH, significant correlations between abnormalities in white matter microstructural, clinical, and cognitive measures were documented. CONCLUSIONS These findings indicate that children with CH are at risk of neurocognitive impairment and white matter abnormalities despite timely and adequate treatment. The association between offspring cognitive vulnerability and maternal thyroid disorders requires careful consideration.
Collapse
Affiliation(s)
- Katia Perri
- Department of Pediatrics, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Letizia De Mori
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health-University of Genova, Genova, Italy
| | - Domenico Tortora
- Pediatric Neuroradiology Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Maria Grazia Calevo
- Epidemiology and Biostatistics Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Anna E M Allegri
- Department of Pediatrics, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Flavia Napoli
- Department of Pediatrics, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Giuseppa Patti
- Department of Pediatrics, IRCCS Istituto Giannina Gaslini, Genova, Italy
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health-University of Genova, Genova, Italy
| | - Daniela Fava
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health-University of Genova, Genova, Italy
| | - Marco Crocco
- Department of Pediatrics, IRCCS Istituto Giannina Gaslini, Genova, Italy
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health-University of Genova, Genova, Italy
| | - Maurizio Schiavone
- Department of Pediatrics, IRCCS Istituto Giannina Gaslini, Genova, Italy
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health-University of Genova, Genova, Italy
| | - Emilio Casalini
- Department of Pediatrics, IRCCS Istituto Giannina Gaslini, Genova, Italy
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health-University of Genova, Genova, Italy
| | | | - Andrea Rossi
- Pediatric Neuroradiology Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Natascia Di Iorgi
- Department of Pediatrics, IRCCS Istituto Giannina Gaslini, Genova, Italy
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health-University of Genova, Genova, Italy
| | - Roberto Gastaldi
- Department of Pediatrics, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Mohamad Maghnie
- Department of Pediatrics, IRCCS Istituto Giannina Gaslini, Genova, Italy
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health-University of Genova, Genova, Italy
| |
Collapse
|
17
|
Chen SH, Yang BC, Li JY, Xu P, Wang F. Diagnostic re-evaluation and predictors of congenital hypothyroidism with eutopic thyroid gland in Jiangxi, China. J Pediatr Endocrinol Metab 2021; 34:1139-1146. [PMID: 34171937 DOI: 10.1515/jpem-2020-0733] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 05/12/2021] [Indexed: 11/15/2022]
Abstract
OBJECTIVES An increase in the incidence of congenital hypothyroidism (CH) with eutopic gland has been reported worldwide due to neonatal screening programs. In this study, we aimed to determine the prevalence of transient CH (TCH) and to investigate predictive factors that could distinguish between permanent and transient CH in patients with eutopic thyroid glands. METHODS We retrospectively reviewed 508 children treated for CH with eutopic thyroid glands between June 1998 and June 2020 in Jiangxi Newborn Screening Center. All patients were treated with levothyroxine and underwent Diagnostic re-evaluation after 2-3 years of age. Patients were classified as having TCH or permanent CH (PCH) during follow-up. RESULTS Of the 508 patients initially treated for CH with a normally located gland, 335 patients (65.9%) were classified in the TCH group and 173 (34.1%) in the PCH group based on the defined criteria. Multivariate analysis revealed that TCH was associated with a lower levothyroxine dose at 24 months of age (p<0.001) and a lower likelihood of having a first-degree family history of CH (p=0.026) than PCH. Gender, prematurity, low birth weight, initial CH severity such as serum TSH and FT4 levels, or bone maturation delay at diagnosis had no effect. Receiver operating characteristics curve analysis showed that a cutoff of 2.3 μg/kg/day for levothyroxine dose requirement at 24 months of age had a sensitivity of 71% and a specificity of 70% for predicting transient CH, with values below this threshold considered predictive of transient CH. CONCLUSIONS TCH presents a significant portion of patients with CH. The levothyroxine dose requirement at 24 months of age has a predictive role in differentiating TCH from PCH in CH patients with eutopic thyroid glands.
Collapse
Affiliation(s)
- Shao-Hong Chen
- Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, Jiangxi, China
| | - Bi-Cheng Yang
- Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, Jiangxi, China
| | - Jiang-Ying Li
- Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, Jiangxi, China
| | - Ping Xu
- Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, Jiangxi, China
| | - Feng Wang
- Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, Jiangxi, China
| |
Collapse
|
18
|
Matejek N, Tittel SR, Haberland H, Rohrer T, Busemann EM, Jorch N, Schwab KO, Wölfle J, Holl RW, Bettendorf M. Predictors of transient congenital primary hypothyroidism: data from the German registry for congenital hypothyroidism (AQUAPE "HypoDok"). Eur J Pediatr 2021; 180:2401-2408. [PMID: 33768331 PMCID: PMC8285326 DOI: 10.1007/s00431-021-04031-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 03/09/2021] [Accepted: 03/12/2021] [Indexed: 11/26/2022]
Abstract
Neonatal screening for congenital primary hypothyroidism (CH) may not distinguish between transient (TCH) and permanent dysfunction (PCH), causing potential overtreatment and concerns in affected families. To specify the indication for interruption of therapy, we analysed the German registry "HypoDok" for infants with CH, which oversees 1625 patients from 49 participating centres in Germany and Austria from 1997 until today. A total of 357 patients with a thyroid gland in loco typico were identified and retrospectively grouped according to cessation (TCH, n = 24) or continuation (PCH, n = 333) of L-thyroxine (L-T4) treatment at 2 years of age. The receiver operating characteristic (ROC) analysis was performed to identify cutoffs predicting TCH by screening TSH concentrations and L-T4 dosages. Gestational ages, birth weights and prevalence of associated malformations were comparable in both groups. The cutoff screening TSH concentration was 73 mU/L. The cutoff daily L-T4 dosage at 1 year was 3.1 μg/kg (90% sensitivity, 63% specificity; 36 μg/day) and at 2 years of age 2.95 μg/kg (91% sensitivity, 59% specificity; 40 μg/day). At 2 years of age, specificity (71%) increased when both of these parameters were considered together.Conclusion: The decision to continue or cease L-T4 treatment at 2 years of age in CH patients diagnosed in neonatal screening may be based on their screening TSH concentrations and individual L-T4 dosages at 1 and 2 years of age. Thus, TCH and PCH may be distinguished; overtreatment avoided; and affected families reassured. What is Known: • The course of congenital primary hypothyroidism may be transient, causing potential overtreatment. • The dose of l-thyroxine at 1 or 2 years of age may predict a transient course of primary congenital hypothyroidism. What is New: • TSH screening concentration and l-thyroxine dosages at 1 and 2 years of age represent reliable predictors for transient congenital primary hypothyroidism with higher sensitivity and specificity when considered together in order to select eligible patients who qualify for treatment withdrawal.
Collapse
Affiliation(s)
- Nicola Matejek
- Division of Paediatric Endocrinology and Diabetes, Department of Paediatrics, University Children’s Hospital Heidelberg, Im Neuenheimer Feld 430, 69120 Heidelberg, Germany
| | - Sascha R. Tittel
- Central Institute for Biomedical Technology, Institute for Epidemiology and Medical Biometry, University of Ulm, Ulm, Germany
| | - Holger Haberland
- Social-Paediatric Centre, Sana-Hospital Lichtenberg, Berlin, Germany
| | - Tilman Rohrer
- Department of Paediatrics, University Hospital Homburg-Saar, Homburg, Germany
| | | | - Norbert Jorch
- Department of Paediatrics, Evangelical Hospital Bethel, Bielefeld, Germany
| | - Karl-Otfried Schwab
- Division of Paediatric Endocrinology and Diabetes, University Hospital Freiburg, Freiburg, Germany
| | - Joachim Wölfle
- Department of Paediatrics, University Hospital Erlangen, Erlangen, Germany
| | - Reinhard W. Holl
- Central Institute for Biomedical Technology, Institute for Epidemiology and Medical Biometry, University of Ulm, Ulm, Germany
| | - Markus Bettendorf
- Division of Paediatric Endocrinology and Diabetes, Department of Paediatrics, University Children’s Hospital Heidelberg, Im Neuenheimer Feld 430, 69120 Heidelberg, Germany
| |
Collapse
|
19
|
Mehran L, Azizi F, Mousapour P, Cheraghi L, Yarahmadi S, Amirshekari G, Khalili D. Development of a risk prediction model for early discrimination between permanent and transient congenital hypothyroidism. Endocrine 2021; 73:374-383. [PMID: 33616836 DOI: 10.1007/s12020-021-02641-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 01/18/2021] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To develop a risk prediction model for early discrimination between transient and permanent congenital hypothyroidism (CH). DESIGN AND SETTING In a retrospective cohort, 1047 confirmed CH neonates, from 15 randomly selected provinces in Iran, were entered to the study. Clinical and biochemical information of transient and permanent cases, distinct at the age of 3 years were retrospectively gathered. RESULTS Among CH neonates, the overall prevalence of permanent CH was 57.1%. Using forward stepwise multivariable logistic regression analysis, confirmatory venous TSH, total T4 < 8.2 ng/dl, requiring levothyroxine dosage increase, venous TSH ≥ 10 mU/l between 6 and 12 months of age, parental consanguinity and family history of thyroid diseases were associated with increased risk of permanent CH. The prediction model achieved a very good power in discriminating patients with transient and permanent CH with an optimism-corrected area under the ROC curve of 0.86 (95% CI:0.84-0.88) with a very good calibration. Integrated discrimination improvement (IDI) test indicated significantly greater diagnostic performance of the model compared to serum TSH alone. CONCLUSIONS Using several potential predictors for permanent CH, we developed a relatively powerful risk prediction model as a cost-saving screening tool in order to avoid unnecessary long-term treatment of transient cases which might empower clinicians for prognostication of the CH course and tailoring treatment up to 1 year of age.
Collapse
Affiliation(s)
- Ladan Mehran
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fereidoun Azizi
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Pouria Mousapour
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Leila Cheraghi
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shahin Yarahmadi
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Golshan Amirshekari
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Davood Khalili
- Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Department of Biostatistics and Epidemiology, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
20
|
PRESUMPTIVE CONGENITAL HYPOTHYROIDISM IN RED PANDAS ( AILURUS FULGENS FULGENS) FROM FOUR SUCCESSIVE LITTERS. J Zoo Wildl Med 2021; 52:795-805. [PMID: 34130428 DOI: 10.1638/2020-0122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/30/2020] [Indexed: 11/21/2022] Open
Abstract
High neonatal mortality among red pandas (Ailurus fulgens) challenges the long-term sustainability of the Species Survival Plan population. Congenital hypothyroidism (CH) is a rare condition in domestic animals, typically due to an inherited genetic defect. Nongoitrous CH was presumptively diagnosed in 75% (n = 6/8) of red panda neonates from four successive litters, with a common sire and two closely related dams. Antemortem diagnosis of CH was made in three cubs (n = 3/6) based on elevated thyroid stimulating hormone and decreased free thyroxine and total thyroxine levels. Affected cubs also had suggestive clinical signs, which included delayed growth with cretinous dwarf appearance, atonic bladder, delayed gastrointestinal motility, hypercholesterolemia, and hypocalcemia. With sodium levothyroxine therapy, two of the three cubs developed into normal adult red pandas in terms of body size, appearance, and behavior. On necropsy cubs (n = 4) were small with varying degrees of cretin dwarf appearance and hypoplastic thyroids with reduced to no colloid in follicles. These cases demonstrate the importance of collecting thyroid tissue, (or proximal trachea/larynx if gross visualization not possible), in neonates for histopathology. Further investigation into the role of thyroid disease in neonatal red panda mortality is warranted.
Collapse
|
21
|
van Trotsenburg P, Stoupa A, Léger J, Rohrer T, Peters C, Fugazzola L, Cassio A, Heinrichs C, Beauloye V, Pohlenz J, Rodien P, Coutant R, Szinnai G, Murray P, Bartés B, Luton D, Salerno M, de Sanctis L, Vigone M, Krude H, Persani L, Polak M. Congenital Hypothyroidism: A 2020-2021 Consensus Guidelines Update-An ENDO-European Reference Network Initiative Endorsed by the European Society for Pediatric Endocrinology and the European Society for Endocrinology. Thyroid 2021; 31:387-419. [PMID: 33272083 PMCID: PMC8001676 DOI: 10.1089/thy.2020.0333] [Citation(s) in RCA: 189] [Impact Index Per Article: 63.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background: An ENDO-European Reference Network (ERN) initiative was launched that was endorsed by the European Society for Pediatric Endocrinology and the European Society for Endocrinology with 22 participants from the ENDO-ERN and the two societies. The aim was to update the practice guidelines for the diagnosis and management of congenital hypothyroidism (CH). A systematic literature search was conducted to identify key articles on neonatal screening, diagnosis, and management of primary and central CH. The evidence-based guidelines were graded with the Grading of Recommendations, Assessment, Development and Evaluation system, describing both the strength of recommendations and the quality of evidence. In the absence of sufficient evidence, conclusions were based on expert opinion. Summary: The recommendations include the various neonatal screening approaches for CH as well as the etiology (also genetics), diagnostics, treatment, and prognosis of both primary and central CH. When CH is diagnosed, the expert panel recommends the immediate start of correctly dosed levothyroxine treatment and frequent follow-up including laboratory testing to keep thyroid hormone levels in their target ranges, timely assessment of the need to continue treatment, attention for neurodevelopment and neurosensory functions, and, if necessary, consulting other health professionals, and education of the child and family about CH. Harmonization of diagnostics, treatment, and follow-up will optimize patient outcomes. Lastly, all individuals with CH are entitled to a well-planned transition of care from pediatrics to adult medicine. Conclusions: This consensus guidelines update should be used to further optimize detection, diagnosis, treatment, and follow-up of children with all forms of CH in the light of the most recent evidence. It should be helpful in convincing health authorities of the benefits of neonatal screening for CH. Further epidemiological and experimental studies are needed to understand the increased incidence of this condition.
Collapse
Affiliation(s)
- Paul van Trotsenburg
- Department of Pediatric Endocrinology, Emma Children's Hospital, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Athanasia Stoupa
- Pediatric Endocrinology, Gynecology and Diabetology Department, Assistance Publique Hôpitaux de Paris (APHP), Hôpital Universitaire Necker Enfants Malades, Paris, France
- Université de Paris, Paris, France
- INSERM U1163, IMAGINE Institute, Paris, France
- INSERM U1016, Cochin Institute, Paris, France
| | - Juliane Léger
- Department of Pediatric Endocrinology and Diabetology, Reference Center for Growth and Development Endocrine Diseases, Assistance Publique-Hôpitaux de Paris, Robert Debré University Hospital, Paris, France
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR 1141, Paris, France
| | - Tilman Rohrer
- Department of Pediatric Endocrinology, University Children's Hospital, Saarland University Medical Center, Homburg, Germany
| | - Catherine Peters
- Department of Pediatric Endocrinology, Great Ormond Street Hospital for Children, London, United Kingdom
| | - Laura Fugazzola
- Department of Endocrinology and Metabolic Diseases, IRCCS Istituto Auxologico Italiano, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Alessandra Cassio
- Department of Pediatric Endocrinology, Unit of Pediatrics, Department of Medical & Surgical Sciences, University of Bologna, Bologna Italy
| | - Claudine Heinrichs
- Pediatric Endocrinology Unit, Hôpital Universitaire des Enfants Reine Fabiola, Université Libre de Bruxelles, Brussels, Belgium
| | - Veronique Beauloye
- Unité d'Endocrinologie Pédiatrique, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
| | - Joachim Pohlenz
- Department of Pediatrics, Johannes Gutenberg University Medical School, Mainz, Germany
| | - Patrice Rodien
- Centre de Référence des Maladies Rares de la Thyroïde et des Récepteurs Hormonaux, Service EDN, CHU d'Angers, Institut MITOVASC, Université d'Angers, Angers, France
| | - Regis Coutant
- Unité d' Endocrinologie Diabetologie Pédiatrique and Centre des Maladies Rares de la Réceptivité Hormonale, CHU-Angers, Angers, France
| | - Gabor Szinnai
- Department of Pediatric Endocrinology, University Children's Hospital Basel, University of Basel, Basel, Switzerland
| | - Philip Murray
- European Society for Pediatric Endocrinology
- Department of Paediatric Endocrinology, Royal Manchester Children's Hospital, Manchester University NHS Foundation Trust, Manchester, United Kingdom
| | - Beate Bartés
- Thyroid Group, European Patient Advocacy Group Patient Representative (ePAG), Association Vivre sans Thyroide, Léguevin, France
| | - Dominique Luton
- Department of Obstetrics and Gynecology, University Hospitals Paris Nord Val de Seine (HUPNVS), Assistance Publique Hôpitaux de Paris (APHP), Bichat Hospital, Paris, France
- Department Risks and Pregnancy (DHU), Université de Paris, Inserm U1141, Paris, France
| | - Mariacarolina Salerno
- Pediatric Endocrine Unit, Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy
| | - Luisa de Sanctis
- Department of Public Health and Pediatrics, University of Turin, Regina Margherita Children's Hospital, Turin, Italy
| | - Mariacristina Vigone
- Department of Pediatrics, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Heiko Krude
- Institut für Experimentelle Pädiatrische Endokrinologie, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Luca Persani
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
- Department of Endocrine and Metabolic Diseases, IRCCS Istituto Auxologico Italiano, Milan, Italy
| | - Michel Polak
- Pediatric Endocrinology, Gynecology and Diabetology Department, Assistance Publique Hôpitaux de Paris (APHP), Hôpital Universitaire Necker Enfants Malades, Paris, France
- Université de Paris, Paris, France
- INSERM U1163, IMAGINE Institute, Paris, France
- INSERM U1016, Cochin Institute, Paris, France
- Paris Regional Newborn Screening Program, Centre régional de dépistage néonatal, Paris, France
- Centre de Référence Maladies Endocriniennes de la Croissance et du Développement, INSERM U1016, IMAGINE Institute, Paris, France
- ENDO-European Reference Network, Main Thematic Group 8, Paris, France
| |
Collapse
|
22
|
Yamamura H, Kokumai T, Furuya A, Suzuki S, Tanahashi Y, Azuma H. Increase in doses of levothyroxine at the age of 3 years and above is useful for distinguishing transient and permanent congenital hypothyroidism. Clin Pediatr Endocrinol 2020; 29:143-149. [PMID: 33088013 PMCID: PMC7534519 DOI: 10.1297/cpe.29.143] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 05/29/2020] [Indexed: 12/28/2022] Open
Abstract
There are no recommended diagnostic criteria for transient congenital hypothyroidism (CH) during early childhood. In this study, we aimed to identify the factors that distinguish permanent (P)- and transient (T)-CH. We retrospectively analyzed the clinical, biochemical, and imaging data of 42 children with a definitive diagnosis of P- or T-CH by re-evaluation tests at our institution from November 1986 to October 2019. Patients who continued levothyroxine (L-T4) treatment after the re-evaluation tests were classified as group P (n = 19), while patients who were diagnosed with T-CH and discontinued L-T4 treatment were classified as group T (n = 23). Initial testing performed during infancy showed that the mean serum TSH and free T4 (FT4) levels did not differ significantly between groups P and T. None of the patients in group T required an increased dosage of L-T4 at the age of 3 yr and above while 85% of the patients in group P required increased dosages of L-T4. Hence, T-CH was suspected in patients who did not require an increase in L-T4 dosage at the age of 3 yr and above.
Collapse
Affiliation(s)
- Hinako Yamamura
- Department of Pediatrics, Asahikawa Medical University, Hokkaido, Japan
| | - Takahide Kokumai
- Department of Pediatrics, Asahikawa Medical University, Hokkaido, Japan
| | - Akiko Furuya
- Department of Pediatrics, Asahikawa Medical University, Hokkaido, Japan
| | - Shigeru Suzuki
- Department of Pediatrics, Asahikawa Medical University, Hokkaido, Japan
| | - Yusuke Tanahashi
- Department of Pediatrics, Asahikawa Medical University, Hokkaido, Japan
| | - Hiroshi Azuma
- Department of Pediatrics, Asahikawa Medical University, Hokkaido, Japan
| |
Collapse
|
23
|
Asena M, Demiral M, Unal E, Öcal M, Demirbilek H, Özbek MN. Validity of Six Month L-Thyroxine Dose for Differentiation of Transient or Permanent Congenital Hypothyroidism. J Clin Res Pediatr Endocrinol 2020; 12:275-280. [PMID: 31990163 PMCID: PMC7499143 DOI: 10.4274/jcrpe.galenos.2020.2019.0170] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
OBJECTIVE The tendency to reduce thyroid stimulating hormone (TSH) referral cut-off values in congenital hypothyroidism (CH) neonatal screening programs has resulted in an increase in the incidence of CH, but also the referral of infants with mild transient elevation of TSH. Therefore, there is a need to develop markers for differentiation of transient elevated TSH and permanent CH as early as safely possible to avoid unnecessary treatment. The aim was to evaluate sixth-month L-thyroxine (LT4) dose as a predictive marker for differentiation of transient elevated TSH and permanent CH. METHODS Data of patients who had been followed after referral from the neonatal screening programme between the year 2010 and 2019 in a tertiary pediatric endocrine centre were examined retrospectively. RESULTS There were 226 cases referred, of whom 186 (82.3%) had eutopic thyroid gland, and 40 (17.7%) had dysgenetic gland. In patients with a dysgentic gland there was a non-significant tendency to have lower diagnostic free thyroxine concentration but significantly higher TSH compared with those with eutopic gland (p=0.44 and p=0.023, respectively). Patients with thyroid dysgenesis required higher initial and six month LT4 doses compared with those with eutopic glands (p=0.001). Receiver operator curve analysis showed the optimum cut-off value for LT4 at six months for transient vs. permanent CH was 2 μg/kg/day (sensitivity 77% and specificity 55%), regardless of etiology. Similarly, in patients with eutopic glands the optimum cut-off value for LT4 dose at six months for permanent vs. transient patients was 2 μg/kg/day (sensitivity 72% and specificity 54%). CONCLUSION Results suggest that LT4 requirement at six months of therapy may be a good marker for predicting transient TSH elevation in patients with eutopic thyroid gland, thus facilitating the decision to halt LT4 therapy.
Collapse
Affiliation(s)
- Muhammet Asena
- Diyarbakır University of Health Sciences Turkey, Gazi Yaşargil Training and Research Hospital, Clinic of Paediatrics, Diyarbakır, Turkey
| | - Meliha Demiral
- Diyarbakır University of Health Sciences Turkey, Gazi Yaşargil Training and Research Hospital, Clinic of Paediatric Endocrinology, Diyarbakır, Turkey
| | - Edip Unal
- Diyarbakır University of Health Sciences Turkey, Gazi Yaşargil Training and Research Hospital, Clinic of Paediatric Endocrinology, Diyarbakır, Turkey
| | - Murat Öcal
- Diyarbakır University of Health Sciences Turkey, Gazi Yaşargil Training and Research Hospital, Clinic of Paediatrics, Diyarbakır, Turkey
| | - Hüseyin Demirbilek
- Hacettepe University Faculty of Medicine, Department of Paediatric Endocrinology, Ankara, Turkey
| | - Mehmet Nuri Özbek
- Diyarbakır University of Health Sciences Turkey, Gazi Yaşargil Training and Research Hospital, Clinic of Paediatric Endocrinology, Diyarbakır, Turkey,* Address for Correspondence: Diyarbakır University of Health Sciences Turkey, Gazi Yaşargil Training and Research Hospital, Clinic of Paediatric Endocrinology, Diyarbakır, Turkey Phone: +90 532 694 63 99 E-mail:
| |
Collapse
|
24
|
Zhou J, Luo J, Lin J, Zeng Y, Qiu X, Zhu W, Liu G. Perinatal risk factors for congenital hypothyroidism: A retrospective cohort study performed at a tertiary hospital in China. Medicine (Baltimore) 2020; 99:e20838. [PMID: 32590776 PMCID: PMC7328952 DOI: 10.1097/md.0000000000020838] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 05/20/2020] [Accepted: 05/21/2020] [Indexed: 02/07/2023] Open
Abstract
Congenital hypothyroidism (CH) is one of the most common neonatal endocrine diseases. This retrospective cohort study aimed to identify the potential perinatal risk factors for CH and to differentiate between transient and permanent CH (TCH and PCH, respectively) as well as determine their prevalence in a southeastern Chinese population.This study was based on an 18-year surveillance of a neonatal CH screening program in a large tertiary hospital. A retrospective review of the maternal and neonatal perinatal exposures was conducted.Of the 205,834 newborns screened between 2000 and 2018, 189 were diagnosed with CH (1/1089). Among the 131 CH patients who again underwent thyroid function testing (TFT) after discontinuation of levothyroxine at the age of 3 years, 61 (46.6%) were diagnosed with PCH and 70 (53.4%) were diagnosed with TCH. In the maternal characteristics model, women aged 35 years or older and those who had thyroid disease and/or diabetes mellitus during pregnancy had increased risk of having an offspring with CH (P = .001, .000, and .001, respectively). Significant associations were found with regard to parity and the risk of CH in the offspring (P = .000). In the neonatal characteristics model, infants with female sex, preterm birth, post-term birth, low birth weight, other birth defects, and those born as part of multiple births (P = .011, .034, .001, .000, .000, and .003, respectively) had increased risk of CH. The rate of newborns with other birth defects was higher in the PCH group than that in the TCH group (P = .008), whereas the rate of maternal thyroid disease, newborns with low birth weight, and newborns with preterm birth was higher in the TCH group than that in the PCH group (P = .041, .020, and .013, respectively). The levothyroxine dose (μg/kg/day) at 1 year, 2 years, and 3 years old was significantly lower in the TCH group than that in the PCH group (P = .000, .000, and .000, respectively).Perinatal factors should be considered during the diagnosis and treatment of CH.
Collapse
Affiliation(s)
| | - Jinying Luo
- Department of Gynaecology and Obstetrics, Fujian Provincial Maternity and Child Hospital, Affiliated Hospital of Fujian Medical Universitya
| | - Junyu Lin
- The First Affiliated Hospital of Fujian Medical University
| | | | | | | | - Guanghua Liu
- Department of Pediatrics, Fujian Provincial Maternity and Child Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian Province, China
| |
Collapse
|
25
|
Zung A, Radi A, Almashanu S. The natural history of congenital hypothyroidism with delayed TSH elevation in neonatal intensive care newborns. Clin Endocrinol (Oxf) 2020; 92:443-449. [PMID: 32043280 DOI: 10.1111/cen.14173] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 01/24/2020] [Accepted: 02/06/2020] [Indexed: 01/05/2023]
Abstract
OBJECTIVE To assess the clinical and neurological outcomes in newborns with primary congenital hypothyroidism presented with delayed TSH elevation (dTSH), and to define parameters that may predict the evolution of transient vs. permanent hypothyroidism in these newborns. DESIGN AND PATIENTS An observational study was performed of a cohort of 113 children with a history of dTSH. MEASUREMENTS Birth parameters, thyroid screening results, thyroid gland imaging, levothyroxine dose and neurological outcome were compared between newborns with spontaneous recovery and children with a final diagnosis of either transient or permanent hypothyroidism. RESULTS Of the children with a history of dTSH, 93% demonstrated recovery, either spontaneously or following levothyroxine treatment (transient hypothyroidism). Newborns with spontaneous recovery demonstrated milder thyroid dysfunction at the newborn screening compared to those who started levothyroxine treatment. Levothyroxine dose was lower in children with transient vs. permanent hypothyroidism only during the first 6 months of life; otherwise, these groups were similar in birth parameters, thyroid screening results and gland images. Seventeen out of 61 children (28%) that underwent neurological assessment demonstrated a developmental delay. Duration of treatment was highly variable in children with transient hypothyroidism. CONCLUSIONS Thyroid dysfunction is transient in most cases of dTSH. No reliable parameters can predict a priori transient vs. permanent hypothyroidism.
Collapse
Affiliation(s)
- Amnon Zung
- Department of Pediatrics, Kaplan Medical Center, Rehovot, Israel
- The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Alin Radi
- Department of Pediatrics, Kaplan Medical Center, Rehovot, Israel
| | - Shlomo Almashanu
- The National Center for Newborn Screening, Ministry of Health, Tel-HaShomer, Israel
| |
Collapse
|
26
|
Itonaga T, Higuchi S, Shimura K, Nagasaki K, Satoh M, Takubo N, Takahashi I, Sawada H, Hasegawa Y. Levothyroxine Dosage as Predictor of Permanent and Transient Congenital Hypothyroidism: A Multicenter Retrospective Study in Japan. Horm Res Paediatr 2020; 92:45-51. [PMID: 31553976 DOI: 10.1159/000502418] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Accepted: 07/30/2019] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Congenital hypothyroidism (CH) can be divided into 2 types, transient CH (T-CH) and permanent CH (P-CH), depending on the requirement of levothyroxine (LT4) for life-long treatment. Several studies have recently reported that the LT4 dosage is useful for predicting the LT4 requirement, but none of the studies followed their patients to puberty. OBJECTIVE To determine the cutoff value for the LT4 dosage as a predictor of the LT4 requirement after puberty in patients with CH. METHODS The LT4 dosage and clinical data on 99 patients with CH who were followed at the participating hospitals from the neonatal period to 15 years of age or older were retrospectively analyzed. Based on their LT4 requirement at their last hospital visit, the participants were divided into the P-CH group (n = 75), who were treated with LT4, and the T-CH group (n = 24), who were not. RESULTS At age 1 year, a higher LT4 dosage was required for the P-CH group (median 3.75 vs. 2.88 µg/kg/day; p < 0.001). When the LT4 dosage cutoff value at age 1 year was set at 4.79 and 1.74 µg/kg/day, the specificity of P-CH and T-CH (for denying T-CH and P-CH, respectively) was 100 and 97%, respectively. CONCLUSIONS An LT4 dosage above 4.7 µg/kg/day and below 1.8 µg/kg/day at age 1 year may help predict P-CH and T-CH, respectively.
Collapse
Affiliation(s)
- Tomoyo Itonaga
- Division of Endocrinology and Metabolism, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan,
| | - Shinji Higuchi
- Division of Endocrinology and Metabolism, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan.,Division of Pediatric Endocrinology and Metabolism, Children's Medical Center, Osaka City General Hospital, Osaka, Japan
| | - Kazuhiro Shimura
- Division of Endocrinology and Metabolism, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Keisuke Nagasaki
- Division of Pediatrics, Department of Homeostatic Regulation and Development, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Mari Satoh
- Department of Pediatrics, Toho University Omori Medical Center, Tokyo, Japan
| | - Noriyuki Takubo
- Department of Pediatrics and Adolescent Medicine, Juntendo University, Tokyo, Japan
| | - Ikuko Takahashi
- Department of Pediatrics, Akita University Graduate School of Medicine, Akita, Japan
| | - Hirotake Sawada
- Department of Reproductive and Developmental Medicine, University of Miyazaki, Miyazaki, Japan
| | - Yukihiro Hasegawa
- Division of Endocrinology and Metabolism, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| |
Collapse
|
27
|
Jung SY, Lee J, Lee DH. Persistent goiter with congenital hypothyroidism due to mutation in DUOXA2 gene. Ann Pediatr Endocrinol Metab 2020; 25:57-62. [PMID: 32252219 PMCID: PMC7136507 DOI: 10.6065/apem.2020.25.1.57] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 07/14/2019] [Indexed: 11/26/2022] Open
Abstract
Thyroid hormones are crucial for development of the central nervous system. Congenital hypothyroidism (CH) is the most common preventable disease resulting in mental retardation. A neonatal screening test (NST) can detect a mild form of CH that can be treated at an early age. Generally after 3 years of age, when most of the brain has matured, clinicians consider reevaluation of thyroid function for CH patients that have been identified with a normal thyroid gland at a normal position. This report presents three CH patients that developed normally, with persistent goiter despite thyroid hormone supplements. The patients' initial thyroid-stimulating hormone (TSH) level after NST was 47, 157, and 57 mIU/L, respectively. Levothyroxine administration began at 1 or 2 months of age and was terminated after reevaluation at the age of 3, 15, and 5 years, respectively. However, 1 or 2 years later, they all resumed their medication due to increased TSH level coupled with newly developed or enlarged goiter. They all showed dual oxidase maturation factor 2 (DUOXA2) gene mutation: a homozygous mutation with DUOXA2 (c.413dupA; p.Tyr138*) in case 1, a presumed compound heterozygotic mutation with DUOXA2 (p.Tyr138*/p.Tyr246*) in case 2, and heterozygous mutations with DUOXA2 (c.738C>G; p.Tyr246*) and TPO (c.2268dupT; p.Glu757*) in case 3. When goiter persists or is newly developed despite a maintained euthyroid status, for those with transient CH history, follow-up to assess the thyroid function is recommended for at least 1 or 2 years, and genetic testing would be helpful. This study presents the first clinical cases of DUOXA2 mutation in Korea.
Collapse
Affiliation(s)
| | | | - Dong Hwan Lee
- Address for correspondence: Dong Hwan Lee, MD, PhD Department of Pediatrics, Soonchunhyang University Seoul Hospital, 59 Daesagwan-ro, Yongsan-gu, Seoul, 04401, Korea Tel: +82-2-709-9341 Fax: +82-2-709-9135 E-mail:
| |
Collapse
|
28
|
Pitts L, McCormick W, Mick GJ. Congenital Hypothyroidism: 8-Year Experience Using 2 Newborn Screens in Alabama. Horm Res Paediatr 2020; 91:319-328. [PMID: 31390650 DOI: 10.1159/000501395] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 06/06/2019] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Newborn screening protocols for congenital hypothyroidism (CH) vary as to whether a TSH or T4 algorithm or some combination is performed. We aimed to determine the 3-year clinical outcome of infants diagnosed with CH and screen-positive for CH using a 2-screen protocol that measures both T4 and TSH on all specimens. METHODS Retrospective analysis of patients with CH who were detected by first (NBS1) or second (NBS2) newborn screen in Alabama (2009-2016) and followed at our university-based practice. Clinical follow-up established the final diagnoses in 146 patients, including a subset of 72 patients with eutopic glands. RESULTS 168 patients were studied: 139 (83%) were detected by NBS1 and 29 (17%) by NBS2. Screening T4 concentrations were 45% reduced in NBS2 compared to NBS1 (p= 0.0002). Thyroid dysgenesis was present in 55% of NBS1 patients while all in NBS2 were eutopic. Follow-up of 146 patients confirmed permanent CH in 92 patients in NBS1 (75%) and 5 in NBS2 (20%). Hispanic infants were only detected by NBS1, and 93% had permanent CH. Transient CH was associated with congenital heart disease. In patients with eutopic, permanent CH, dyshormonogenesis was confirmed in 23% of NBS1 patients and 40% of NBS2. One case of central CH was detected by each screen. CONCLUSIONS This 8-year, retrospective study buttresses the importance of a 2-screen approach for CH by identifying 5 infants with clinically significant permanent thyroid dysfunction including dyshormonogenesis and central hypothyroidism. It is the first 2-screen study to incorporate thyroid ultrasound. Disconcertingly, 4 of 5 second-screen infants with permanent CH had no risk factors for CH, and these infants would otherwise not have been detected.
Collapse
Affiliation(s)
- Leslie Pitts
- University of Alabama at Birmingham, Birmingham, Alabama, USA
| | | | - Gail J Mick
- University of Alabama at Birmingham, Birmingham, Alabama, USA,
| |
Collapse
|
29
|
Higuchi S, Hasegawa Y. Levothyroxine dosages less than 2.4 μg/kg/day at 1 year and 1.3 μg/kg/day at 3 years of age may predict transient congenital hypothyroidism. Clin Pediatr Endocrinol 2019; 28:127-133. [PMID: 31666765 PMCID: PMC6801356 DOI: 10.1297/cpe.28.127] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 07/17/2019] [Indexed: 12/15/2022] Open
Abstract
Significant differences in levothyroxine (LT4) dosages for congenital hypothyroidism
(CH), which can be permanent (P-CH) or transient (T-CH), and their respective cutoff
values have been reported. In Japanese children, however, these values are unknown, and
were thus determined in this retrospective single-center study, which included 34
patients— 19 with P-CH and 15 with T-CH. The LT4 dosages of the two groups at ages 1 and 3
yr were compared, and receiver operating characteristic (ROC) analysis was performed to
identify the cutoff dosages. The results showed that the LT4 dosages of the P-CH and T-CH
groups differed significantly at both ages. When LT4 dosage cutoff at 1 yr of age was set
at 2.4 μg/kg/d, the sensitivity and specificity were 93% and 74%, respectively, and when
it was set at 1.3 μg/kg/d at 3 yr of age, they were 80% and 84%, respectively, suggesting
that when LT4 dosages are ≤2.4 μg/kg/d at 1 yr and ≤1.3 μg/kg/d at 3 yr of age, T-CH
should be suspected.
Collapse
Affiliation(s)
- Shinji Higuchi
- Department of Endocrinology and Metabolism, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan.,Division of Pediatric Endocrinology and Metabolism, Children's Medical Center, Osaka City General Hospital, Osaka, Japan
| | - Yukihiro Hasegawa
- Department of Endocrinology and Metabolism, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| |
Collapse
|
30
|
Abstract
PURPOSE OF REVIEW Congenital hypothyroidism is a common worldwide condition. Due in part to increasingly widespread newborn screening, the number of patients with this diagnosis is increasing. In this review, we discuss currently available imaging techniques and the benefits and limitations of these techniques in evaluating congenital hypothyroidism. RECENT FINDINGS Recent work has demonstrated an increasing diagnosis of congenital hypothyroidism with normally located glands and mildly decreased thyroid function. Increasingly more genetic abnormalities have been recognized in the hormone synthesis pathways. These cases may have lower or shorter term treatment requirements than the more common severe forms of congenital hypothyroidism, and the ability to distinguish between these situations may become increasingly more important to management and counseling. SUMMARY Imaging studies for congenital hypothyroidism may be unlikely to change immediate management in the majority of cases. The common modalities of imaging include thyroid ultrasound and radionuclide uptake scanning with either technetium or iodine. These can help establish an etiology for the condition, and in less-common causes of congenital hypothyroidism may have implications on treatment decisions, prognosis, and counseling.
Collapse
Affiliation(s)
- T Livett
- Department of Pediatric Endocrinology, Oregon Health Sciences University, Portland, Oregon, USA
| | | |
Collapse
|