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Author Spotlight: Integrating Ultrasound Imaging with Biochemical Markers for Thyroid Disease Diagnosis
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Targeted Antenatal Screening for Predicting Postpartum Thyroiditis and Its Evolution Into Permanent Hypothyroidism.

Salvatore Benvenga1,2,3

  • 1Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy.

Frontiers in Endocrinology
|May 5, 2020
PubMed
Summary

Identifying high-risk pregnant women for postpartum thyroiditis (PPT) is feasible using family history, personal history, and seafood consumption. This approach enables targeted screening, potentially reducing costs associated with universal antibody testing.

Keywords:
antenatal screeningautoimmune diseasesautoimmune thyroid diseasesfish consumptionpostpartumpostpartum thyroiditispregnancythyroid autoimmunity

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Area of Science:

  • Endocrinology
  • Obstetrics
  • Immunology

Background:

  • Postpartum thyroiditis (PPT) affects 1-22% of women, with a 50% risk of progressing to permanent hypothyroidism.
  • Gestational screening for thyroid antibodies identifies women at risk, but universal screening is costly.
  • Family/personal history of autoimmune diseases and seafood consumption influence PPT risk.

Purpose of the Study:

  • To identify a high-risk subgroup of pregnant women for targeted postpartum thyroiditis (PPT) screening.
  • To evaluate the cost-effectiveness of different screening strategies for PPT.

Main Methods:

  • 412 pregnant women were followed from early gestation through 12 months postpartum.
  • Measurements included serum thyroid antibodies (TPOAb, TgAb), thyroid function tests (TSH, FT4, FT3), and assessment of family/personal history of autoimmune diseases and seafood consumption.
  • Eleven screening strategies were analyzed for sensitivity, specificity, diagnostic accuracy, and cost.

Main Results:

  • PPT occurred in 15.3% of women, with 54% developing permanent hypothyroidism.
  • Risk stratification based on history and seafood consumption identified subgroups with PPT rates ranging from 3.8% to 100%.
  • Selective screening strategies, particularly those incorporating history and fish consumption, demonstrated significant cost savings compared to universal screening.

Conclusions:

  • Identifying pregnant women at different risks for PPT is feasible through non-invasive factors like medical history and dietary habits.
  • Cost-effective screening strategies can be developed by targeting high-risk individuals for gestational antibody testing and postpartum thyroid function monitoring.
  • Integrating patient history and seafood consumption data can optimize the efficiency and reduce the financial burden of PPT screening.