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Preconception management of thyroid dysfunction.

Onyebuchi E Okosieme1,2, Ishrat Khan1, Peter N Taylor1

  • 1Thyroid Research Group, Systems Immunity Research Institute, Cardiff University School of Medicine, Cardiff, UK.

Clinical Endocrinology
|April 30, 2018
PubMed
Summary
This summary is machine-generated.

Optimizing thyroid function before pregnancy is crucial for fetal and maternal health. Preconception management of hypothyroidism and hyperthyroidism ensures better outcomes, though strategies for borderline thyroid states require further research.

Keywords:
Graves’ diseaseantithyroid drugshyperthyroidismhypothyroidismlevothyroxinepreconceptionpregnancyscreeningthyroid-stimulating hormonethyroxine

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Area of Science:

  • Endocrinology
  • Reproductive Medicine
  • Maternal-Fetal Medicine

Background:

  • Thyroid dysfunction during pregnancy poses significant risks to both mother and fetus.
  • Early gestation is a critical period of fetal vulnerability to maternal thyroid imbalances.
  • Effective preconception strategies are essential for managing thyroid disease in pregnancy.

Purpose of the Study:

  • To outline optimal preconception management strategies for thyroid dysfunction in pregnant women.
  • To emphasize the importance of proactive thyroid health management before conception.
  • To highlight areas where further research is needed for borderline thyroid states.

Main Methods:

  • Review of current clinical guidelines and evidence for preconception thyroid management.
  • Discussion of therapeutic adjustments for hypothyroidism and hyperthyroidism.
  • Identification of knowledge gaps in managing subclinical thyroid dysfunction and autoimmunity.

Main Results:

  • Preconception levothyroxine adjustment is key for hypothyroidism to support fetal development.
  • Controlling hyperthyroidism and minimizing antithyroid drug exposure are critical before conception.
  • Propylthiouracil is preferred over carbimazole/methimazole for women with active disease planning pregnancy.
  • Definitive treatments like radioiodine or surgery are considered for Graves' disease in women planning future pregnancies.

Conclusions:

  • Proactive preconception thyroid management significantly improves pregnancy outcomes.
  • Tailored strategies are necessary for hypothyroidism and hyperthyroidism.
  • Further research, particularly controlled trials, is needed for borderline thyroid states to establish optimal preconception or early pregnancy interventions.