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Sarah Feigl, Barbara Obermayer-Pietsch, Philipp Klaritsch, Gudrun Pregartner, Sereina Annik Herzog, Elisabeth Lerchbaum, Christian Trummer, Stefan Pilz, Martina Kollmann

1
Mar 23, 2022
Biomedicines
DOI :
10.3390/biomedicines10040750
Article Institutional access
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Background : Women with polycystic ovary syndrome (PCOS) are more prone to autoimmune thyroiditis, and both disorders lead to subfertility and pregnancy related complications. The aim of this study was to investigate whether mothers with and without PCOS and their offspring have comparable thyroid parameters at term and how thyroid parameters are associated with perinatal outcome in this population.
Method : This cross sectional observational study was performed in a single academic tertiary hospital in Austria. Seventy nine pregnant women with PCOS and 354 pregnant women without PCOS were included. Blood samples were taken from the mother and cord blood at birth. Primary outcome parameters were maternal and neonatal thyroid parameters at delivery. Secondary outcome parameters were the composite complication rate per woman and per neonate.
Result : Thyroid dysfunction was more prevalent among PCOS women (p < 0.001). At time of birth, free triiodothyronine (fT3) levels were significantly lower in PCOS than in non PCOS women (p = 0.005). PCOS women and their neonates had significantly higher thyreoperoxidase antibody (TPO AB) levels (p = 0.001). Women with elevated TPO AB had a significantly higher prevalence of hypothyroidism (p < 0.001). There was a significant positive correlation between maternal and neonatal free thyroxine, fT3 and TPO AB levels. There were no significant differences in thyroid parameters between women or neonates with or without complications.
Conclusions : Our results demonstrate a higher prevalence of thyroid dysfunction and autoimmunity in PCOS women, supporting a common etiology of both disorders. We were not able to show an association between complication rate and thyroid parameters.

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