Cited by 7Thyroid Disorders and TreatmentsPregnancy and Medication ImpactThyroid and Parathyroid Surgery

Graves' disease complicated by fetal goitrous hypothyroidism treated with intra-amniotic administration of levothyroxine

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Machado, Catarina Martins, Castro, Jorge Manuel, Campos, Rosa Arménia, Oliveira, Maria João·2019·BMJ Case Reports

Abstract

Fetal goitrous hypothyroidism is a rare entity and is caused mainly by maternal treatment of Graves' disease (GD). We report a case of a 22-year-old woman referred at 12 weeks of gestation due to hyperthyroidism subsequent to recently diagnosed GD. She started treatment with propylthiouracil and, at 21 weeks of gestation, fetal goitre was detected. A cordocentesis confirmed the diagnosis of fetal goitrous hypothyroidism, and intra-amniotic administration of levothyroxine (LT4) was performed and repeated through the pregnancy due to maintenance of fetal goitre. The pregnancy proceeded without further complications and a healthy female infant was born at 37 weeks of gestation, with visible goitre and thyroid function within the normal range at birth. Although there is no consensus on the optimal dose, the number of injections and the interval between them, intra-amniotic LT4 administration is recommended once fetal goitrous hypothyroidism is suspected, in order to prevent long-term complications of fetal hypothyroidism.

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  • Fetal goiters are usually detected by ultrasound examinations or amniocentesis in the second or third trimesters.

    “The conditions are usually detected by ultrasound examinations or amniocentesis in the second or third trimesters (252).”

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Authors
Machado, C. M., Castro, J. M., Campos, R. A., & Oliveira, M. J.
Affiliations
Centro Hospitalar de Vila Nova de Gaia (PT)
Corresponding author
Machado, Catarina Martins
Venue
BMJ Case Reports
Publisher
BMJ
Published
2019-08
Volume
12
Issue
8
Pages
e230457
ISSN
1757-790X (ISSN-L)
OpenAlex
W2969082584
Cited by
7
References
27
Citations by year
2023: 2 · 2022: 1 · 2021: 2 · 2020: 1 · 2019: 1
FWCI
1.01
Type
journal article
Language
en
Open access
Locations
  • BMJ Case Reports (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Disorders and Treatments
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Pregnancy and Medication Impact
  • Health Sciences › Medicine › Surgery › Thyroid and Parathyroid Surgery
Keywords
Graves' disease, maternal hyperthyroidism, propylthiouracil, cordocentesis, pregnancy
MeSH terms
Drug Administration Routes, Female, Fetal Diseases, Goiter, Graves Disease, Humans, Hypothyroidism, Thyroxine

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