Central hypothyroidism in infants who were born to mothers with thyrotoxicosis before 32 weeks' gestation: 3 cases.

Higuchi, Ryuzo; Miyawaki, Masakazu; Kumagai, Takeshi; Okutani, Takahiro; Shima, Yuko; Yoshiyama, Megumi; Ban, Hiroshi; Yoshikawa, Norisige · Pediatrics · 2005

case_report · Level V

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Abstract

We describe 3 infants who were born to mothers with Graves' disease and developed central hypothyroidism that persisted for >6 months after birth. Two were preterm infants, and the other was a term infant who was born to a euthyroid mother who had been treated with an antithyroid drug since week 31 of gestation. These cases suggest that passage of thyroid hormones can occur from a thyrotoxic mother to the fetus and that the gestational period earlier than 32 weeks may be the critical time for development of central hypothyroidism.

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