Iodine Status Has No Impact on Thyroid Function in Early Healthy Pregnancy
Joint Authors
Ferrari, P.
Brucker-Davis, F.
Hieronimus, S.
Fenichel, P.
Berthier, F.
Gal, J.
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-11-28
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Aim.
To assess the impact of iodine status in early pregnancy on thyroid function.
Methods.
Women >18 years old seen at their first prenatal consult before 12 weeks of amenorrhea and without personal thyroid history were proposed thyroid screening and were eligible if they had strictly normal thyroid tests (fT4 > 10th percentile, TSH < 2.5 mUI/L, negative anti-TPO antibodies).
Evaluation included thyroid ultrasound, extensive thyroid tests, and ioduria (UIE).
Results.
110 women (27.5 y, 8 weeks of amenorrhea, smoking status: 28% current smokers) were enrolled.
Results are expressed as medians.
UIE was 116 μg/L.
66.3% of women had iodine deficiency (ID) defined as UIE < 150.
FT4 was 14.35 pmol/L; TSH 1.18 mUI/L; fT3 5 pmol/L; thyroglobulin 17.4 ng/mL; rT3 0.27 ng/mL; thyroid volume: 9.4 ml.
UIE did not correlate with any thyroid tests, but correlated negatively with thyroid volume.
UIE and all thyroid tests, except fT3, correlated strongly with βhCG.
Smoking correlated with higher thyroid volume and thyroglobulin and with lower rT3.
Conclusions.
In pregnant women selected for normal thyroid function, mild ID is present in 66% during the 1st trimester.
The absence of correlation between UIE and thyroid tests at that stage contrasts with the impact of βhCG and, to a lesser degree, maternal smoking.
American Psychological Association (APA)
Brucker-Davis, F.& Ferrari, P.& Gal, J.& Berthier, F.& Fenichel, P.& Hieronimus, S.. 2012. Iodine Status Has No Impact on Thyroid Function in Early Healthy Pregnancy. Journal of Thyroid Research،Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-451354
Modern Language Association (MLA)
Brucker-Davis, F.…[et al.]. Iodine Status Has No Impact on Thyroid Function in Early Healthy Pregnancy. Journal of Thyroid Research No. 2012 (2012), pp.1-6.
https://search.emarefa.net/detail/BIM-451354
American Medical Association (AMA)
Brucker-Davis, F.& Ferrari, P.& Gal, J.& Berthier, F.& Fenichel, P.& Hieronimus, S.. Iodine Status Has No Impact on Thyroid Function in Early Healthy Pregnancy. Journal of Thyroid Research. 2012. Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-451354
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-451354