Cited by 37Thyroid Disorders and TreatmentsReproductive Health and TechnologiesAssisted Reproductive Technology and Twin Pregnancy

Thyroxine replacement during super-ovulation for in vitro fertilization: a potential gap in management?

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Stuckey, Bronwyn G.A., Yeap, Doreen, Turner, Simon R.·2010·Fertility and Sterility

Abstract

Objective Our objective is to report observed changes in thyroid-stimulating hormone (TSH) in two patients undergoing super-ovulation for IVF.Design Case report.Setting Private assisted reproduction practices.Patient(s) Two hypothyroid women taking thyroxine replacement therapy undergoing super-ovulation for IVF.Intervention(s) Laboratory records for TSH taken during ovulation induction cycles were retrieved retrospectively for six cycles and measured prospectively for one cycle each in both women.Main outcome measure(s) To document changes in thyroid status during super-ovulation.Result(s) Despite being euthyroid at the start of the super-ovulation cycle, both patients demonstrated a rise in TSH to hypothyroid levels during ovulation induction, even in the absence of ongoing pregnancy.Conclusion(s) High circulating E(2) during super-ovulation for IVF induces increased thyroxine-binding globulin binding of thyroxine. In women taking thyroxine replacement therapy, hypothyroidism develops during a super-ovulation cycle. Whether such acute biochemical hypothyroidism is a hindrance to ovum quality, fertilization, conception, or ongoing pregnancy and whether thyroxine dose adjustment during a super-ovulation cycle would improve IVF outcomes requires further study. These case studies identify a potential management gap in assisted reproduction for women taking thyroxine therapy.

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Crossref · 10.1016/j.fertnstert.2009.11.051

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Authors
Stuckey, B. G. A., Yeap, D., & Turner, S. R.
Affiliations
The University of Western Australia (AU)
Corresponding author
Stuckey, Bronwyn G.A.
Venue
Fertility and Sterility
Publisher
Elsevier BV
Published
2010-05
Volume
93
Issue
7
Pages
2414.e1-2414.e3
ISSN
0015-0282 (ISSN-L)
OpenAlex
W2046807628
Cited by
37
References
17
Citations by year
2026: 1 · 2024: 1 · 2023: 2 · 2021: 3 · 2020: 2 · 2019: 1 · 2018: 3 · 2017: 3 · 2016: 5 · 2015: 1 · 2014: 4 · 2013: 4 · 2012: 2
FWCI
2.42
Type
journal article
Language
en
Open access
Locations
  • Fertility and Sterility (publishedVersion)
  • PubMed (publishedVersion)
  • UWA Profiles and Research Repository (UWA) (submittedVersion)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Disorders and Treatments
  • Health Sciences › Medicine › Reproductive Medicine › Reproductive Health and Technologies
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Assisted Reproductive Technology and Twin Pregnancy
Keywords
thyroxine replacement, superovulation, in vitro fertilization, thyroid-stimulating hormone, hypothyroidism, ovulation induction, estradiol, thyroxine-binding globulin, thyroid function monitoring
MeSH terms
Adult, Female, Fertilization in Vitro, Health Services Needs and Demand, Humans, Hypothyroidism, Infant, Newborn, Infertility, Female, Pregnancy, Pregnancy Complications, Retrospective Studies, Superovulation, Thyroxine, Treatment Outcome, Hormone Replacement Therapy

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