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Iodine status during pregnancy and at 6 weeks, 6, 12 and 18 months post-partum.

ABSTRACT: Iodine deficiency during pregnancy and in the post-partum period may lead to impaired child development. Our aim is to describe iodine status longitudinally in women from pregnancy until 18 months post-partum. Furthermore, we explore whether iodine status is associated with dietary intake, iodine-containing supplement use and breastfeeding status from pregnancy until 18 months post-partum. We also assess the correlation between maternal iodine status 18 months post-partum and child iodine status at 18 months of age. Iodine status was measured by urinary iodine concentration (UIC) during pregnancy (n = 1,004), 6 weeks post-partum (n = 915), 6 months post-partum (n = 849), 12 months post-partum (n = 733) and 18 months post-partum (n = 714). The toddlers' UIC was assessed at 18 months of age (n = 416). Demographic variables and dietary data (food frequency questionnaire) were collected during pregnancy, and dietary data and breastfeeding practices were collected at all time points post-partum. We found that iodine status was insufficient in both pregnant and post-partum women. The UIC was at its lowermost 6 weeks post-partum and gradually improved with increasing time post-partum. Intake of milk and use of iodine-containing supplements significantly increased the odds of having a UIC above 100 ?g/L. Neither the mothers' UIC, vegetarian practice, nor exclusion of milk and dairy products were associated with the toddlers UIC 18 months post-partum. Women who exclude milk and dairy products from their diets and/or do not use iodine-containing supplements may be at risk of iodine deficiency. The women possibly also have an increased risk of thyroid dysfunction and for conceiving children with nonoptimal developmental status.

SUBMITTER: Aakre I

PROVIDER: S-EPMC7729798 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature

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Iodine status during pregnancy and at 6 weeks, 6, 12 and 18 months post-partum.

Aakre Inger I Morseth Marianne Sandsmark MS Dahl Lisbeth L Henjum Sigrun S Kjellevold Marian M Moe Vibeke V Smith Lars L Markhus Maria Wik MW

Maternal & child nutrition 20200629 1

Iodine deficiency during pregnancy and in the post-partum period may lead to impaired child development. Our aim is to describe iodine status longitudinally in women from pregnancy until 18 months post-partum. Furthermore, we explore whether iodine status is associated with dietary intake, iodine-containing supplement use and breastfeeding status from pregnancy until 18 months post-partum. We also assess the correlation between maternal iodine status 18 months post-partum and child iodine status ...[more]

PMID: 32602197

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Project description:IntroductionIntravenous thrombolysis (IVT) and mechanical thrombectomy (MT) in women with ischemic stroke (IS) during pregnancy/post-partum is challenging, and recent guidelines claimed for additional information to better argue its effectiveness and safety. This observational national study aimed to describe characteristics, rates and outcomes of pregnant/post-partum women receiving acute revascularization therapy for IS compared to their non-pregnant counterparts, and pregnant women with IS not receiving such therapy.Patients and methodsIn this cross-sectional study, all women aged 15-49 years hospitalized in France for IS between 2012 and 2018 were retrieved from the French hospital discharge databases. Pregnant or post-partum (⩽6 weeks after delivery) women were identified. Data about patients' characteristics, risk factors, revascularization therapy, delivery, post-stroke survival, and recurrent vascular events during follow-up were recorded.ResultsOver the study period, 382 women with pregnancy-related IS were registered. Among them, 7.3% (n = 28) received a revascularization therapy, including nine cases during pregnancy, one the same day as delivery, and 18 during the post-partum period, compared with 8.5% (n = 1285) in women with non-pregnancy-related IS (n = 15,084). Treated pregnant/post-partum women had more severe IS than not-treated pregnant/post-partum. Compared with treated not-pregnant women, they were younger, but did not differ regarding other characteristics including stroke severity. There were no differences in systemic or intracranial hemorrhages or in the length of hospital stay between pregnant/post-partum women compared with treated not-pregnant women. All women receiving revascularization during pregnancy had a live baby. After a mean follow-up of 4.3 years, all pregnant/post-partum women were alive, one had recurrent IS and none had other vascular events.Discussion and conclusionOnly a few women with pregnancy-related IS were treated with acute revascularization therapy, but this was proportionately similar to their non-pregnant counterparts, from whom they did not differed regarding characteristics, survival, and risk of recurrent events. These findings suggest that stroke physicians applied treatment strategies of IS in a similar way regardless of pregnancy in France, and this attitude was an anticipation but consistent with the recently published guidelines on the topic.

Dataset Information

Iodine status during pregnancy and at 6 weeks, 6, 12 and 18 months post-partum.

Publications

Iodine status during pregnancy and at 6 weeks, 6, 12 and 18 months post-partum.

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