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Severe hypothyroidism after contrast enema in premature infants
Fanny Lombard1, Fabienne Dalla-Vale, Corinne Veyrac
1CHU de Montpellier, Service de Néonatologie (Pédiatrie 2), Hôpital A. de Villeneuve, Montpellier, 34000, France.
Insights
Premature infants can develop severe hypothyroidism after iodine exposure from contrast agents. Careful consideration of contrast enemas and thyroid monitoring are crucial for vulnerable newborns.
Area of Science:
- Neonatology
- Pediatric Endocrinology
- Radiology
Background:
- Premature infants are susceptible to iatrogenic hypothyroidism from iodine exposure.
- Common sources include disinfectants and iodinated contrast agents used in medical imaging.
Observation:
- A case of severe iatrogenic hypothyroidism with goiter and cholestasis is presented.
- This occurred six weeks after a contrast enema using sodium ioxitalamate in a premature infant.
Findings:
- The infant's prematurity, intrauterine growth retardation, and feeding intolerance may have contributed to the complication.
- Iodinated contrast agents can induce significant thyroid dysfunction in vulnerable neonates.
Implications:
- Contrast enemas in neonates require careful consideration of risks and benefits.
- Thyroid function monitoring is recommended for premature infants, particularly after exposure to iodinated contrast agents.
Abstract:
Premature newborns are particularly vulnerable to iatrogenic hypothyroidism due to iodine exposure, usually through skin absorption of iodine-containing disinfectants or intravenous administration of iodinated contrast agents. We report here a case of severe iatrogenic hypothyroidism with goiter and cholestasis, discovered six weeks after a contrast enema using sodium ioxitalamate, an iodinated contrast agent. Prematurity, intrauterine growth retardation, and enteral feeding intolerance could explain why this complication occurred after contrast enema. Our observations suggest that indications of contrast enema in neonates need to be carefully considered, and when necessary, thyroid function should be monitored, especially in very premature infants.
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