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The impact of prolo...
The impact of prolonged, maternal iodine exposure in early gestation on neonatal thyroid function
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- Mathews, Divya M. M. (författare)
- Univ Auckland, Liggins Inst, Auckland, New Zealand.;Starship Childrens Hosp, Te Whatu Ora Hlth New Zealand, Te Toka Tumai Auckland, Auckland, New Zealand.
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- Peart, Jane M. M. (författare)
- Auckland Radiol Grp, Auckland, New Zealand.
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- Sim, Robert G. G. (författare)
- Auckland Radiol Grp, Auckland, New Zealand.
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- O'Sullivan, Susannah (författare)
- Greenlane Clin Ctr, Endocrinol, Te Whatu Ora Hlth New Zealand, Te Toka Tumai Auckland, Auckland, New Zealand.
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- Derraik, José G. B. (författare)
- Uppsala universitet,Perinatal, neonatal och barnkardiologisk forskning,Univ Auckland, Liggins Inst, Auckland, New Zealand.;Univ Auckland, Fac Med & Hlth Sci, Dept Paediatr, Child & Youth Hlth, Auckland, New Zealand.;Chiang Mai Univ, Res Inst Hlth Sci, Environm Occupat Hlth Sci & Noncommunicable Dis Re, Chiang Mai, Thailand.
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- Heather, Natasha L. L. (författare)
- Univ Auckland, Liggins Inst, Auckland, New Zealand.;Newborn Metab Screening Programme, Lab Plus, Te Whatu Ora Hlth New Zealand, Te Toka Tumai Auckland, Auckland, New Zealand.
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- Webster, Dianne (författare)
- Univ Auckland, Liggins Inst, Auckland, New Zealand.;Newborn Metab Screening Programme, Lab Plus, Te Whatu Ora Hlth New Zealand, Te Toka Tumai Auckland, Auckland, New Zealand.
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- Johnson, Neil P. P. (författare)
- Univ Adelaide, Robinson Res Inst, Adelaide, SA, Australia.;Univ Auckland, Fac Med & Hlth Sci, Dept Obstet & Gynecol, Auckland, New Zealand.;Repromed Auckland, Auckland, New Zealand.
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- Hofman, Paul L. L. (författare)
- Univ Auckland, Liggins Inst, Auckland, New Zealand.;Starship Childrens Hosp, Te Whatu Ora Hlth New Zealand, Te Toka Tumai Auckland, Auckland, New Zealand.
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Univ Auckland, Liggins Inst, Auckland, New Zealand;Starship Childrens Hosp, Te Whatu Ora Hlth New Zealand, Te Toka Tumai Auckland, Auckland, New Zealand. Auckland Radiol Grp, Auckland, New Zealand. (creator_code:org_t)
- 2023-01-31
- 2023
- Engelska.
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Ingår i: Frontiers in Endocrinology. - : Frontiers Media S.A.. - 1664-2392. ; 14
- Relaterad länk:
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https://doi.org/10.3...
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https://uu.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- Context: Hysterosalpingography (HSG) using oil-soluble contrast medium (OSCM) improves pregnancy rates but results in severe and persistent iodine excess, potentially impacting the fetus and neonate.Objective: To determine the incidence of thyroid dysfunction in newborns conceived within six months of OSCM HSG.Design: Offspring study of a prospective cohort of women who underwent OSCM HSG.Setting: Auckland region, New Zealand (2020-2022)Participants: Offspring from the SELFI (Safety and Efficacy of Lipiodol in Fertility Investigations) study cohort (n=57).Measurements: All newborns had a dried blood spot card for TSH measurement 48 hours after birth as part of New Zealand's Newborn Metabolic Screening Programme. Forty-one neonates also had a heel prick serum sample at one week to measure thyroid-stimulating hormone (TSH), free thyroxine (FT4), and free triiodothyronine (FT3). Maternal urine iodine concentration (UIC) and TSH in the six months after OSCM HSG were retrieved from the SELFI study for analyses.Primary outcome: Incidence of hypothyroidism in the neonatal period.Results: There was no evidence of primary hypothyroidism on newborn screening (TSH 2-10 mIU/L). All neonates tested at one week had normal serum TSH, FT4, and FT3 levels. However, increasing maternal peak UIC levels during pregnancy were associated with lower TSH levels (p= 0.006), although also associated with lower FT4 levels (p=0.032).Conclusions: While pre-conceptional OSCM HSG in women did not result in neonatal hypothyroidism, gestational iodine excess was associated with a paradoxical lowering of neonatal TSH levels despite lower FT4 levels. These changes likely reflect alterations in deiodinase activity in the fetal hypothalamic-pituitary axis from iodine excess.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Reproduktionsmedicin och gynekologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Obstetrics, Gynaecology and Reproductive Medicine (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Endokrinologi och diabetes (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Endocrinology and Diabetes (hsv//eng)
Nyckelord
- contrast
- hypothalamic-pituitary axis
- hypothyroidism
- hysterosalpingography
- iodine
- newborn
- oil-soluble
- thyroid
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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