Iodine Deficiency in Extremely Low Gestational Age Newborns Receiving Parenteral Nutrition

Briefly noted: N Kanike et al. Nutrients 202012(6), 1636; https://doi.org/10.3390/nu12061636 (from Kipp Ellsworth Twitter feed)

Full text: Risk of Iodine Deficiency in Extremely Low Gestational Age Newborns on Parenteral Nutrition

Background/Methods: Extremely Low Gestational Age Newborns (ELGAN) do not receive Iodine supplementation while on parenteral nutrition (PN)….We measured urine iodine levels and thyroid function tests in 50 mother–infant dyads at birth, at 1 week, 1, 2, 3 months and near discharge. In our study, 64% of mothers were iodine deficient at the time of delivery.

Key findings:

  • At 1 month of age, ELGAN on PN developed iodine deficiency (p = 0.017) and had high thyroglobulin levels of 187 (156–271) ng/mL
  • Iodine levels improved with enteral feeds by 2 months of age (p = 0.01).

My take: The authors note that “Iodine supplementation during pregnancy and postnatally should be considered to avoid iodine deficiency.”  In addition, in those at risk, there needs to be monitoring and treatment of hypothyroidism.

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