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Hypothyroidism and iodine deficiency in an infant requiring total parenteral nutrition
Katherine Elizabeth Clarridge1, Erin E Conway2, John Bucuvalas3
1Internal Medicine/Pediatrics, University of Cincinnati Medical Center/Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio Katherine.Clarridge@cchmc.org.
Insights
Children on parenteral nutrition (PN) may face iodine deficiency, risking thyroid issues and neurodevelopmental problems. Current PN formulas and antiseptic changes heighten this concern for pediatric patients.
Area of Science:
- Pediatric Endocrinology
- Nutritional Science
- Thyroid Disorders
Background:
- Iodine deficiency is uncommon in the US but understudied in children receiving parenteral nutrition (PN).
- Standard PN formulations may contain insufficient iodine.
- Transitioning from iodine-based to chlorhexidine antiseptics reduces inadvertent iodine exposure.
Observation:
- Children requiring PN are a vulnerable population for thyroid dysregulation.
- Low iodine levels in PN could impact thyroid function.
- Elimination of iodine-containing antiseptics further reduces iodine intake.
Findings:
- The iodine status in pediatric patients on PN is largely unknown.
- There is a potential risk of iodine deficiency in this specific pediatric group.
- Thyroid dysregulation and neurodevelopmental sequelae are potential consequences.
Implications:
- Clinical monitoring of iodine status in children on PN is crucial.
- Revising PN formulations to include adequate iodine may be necessary.
- Further research is needed to establish optimal iodine intake guidelines for pediatric PN patients.
Abstract:
While iodine deficiency remains a relatively rare cause of thyroid dysfunction in the United States, little is known about iodine status and deficiency in children requiring parenteral nutrition (PN). This population may be at an elevated risk of thyroid dysregulation and neurodevelopmental sequelae due to low concentrations in typical PN formulations. Furthermore, with the widespread practice of switching from iodine-based antiseptics to chlorhexadine, previous inadvertent sources of iodine are being eliminated as well.
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