ABSTRACT
Thyrotoxicosis is rare in pregnancy but poses a significant risk of morbidity and, in severe cases, mortality. Treatment varies depending on the etiology. Some treatments are supportive, as the excess thyroid hormone levels decline on their own. Other treatments are directed at the active overproduction of thyroid hormone. Treatment choices are also guided by the patient’s trimester of pregnancy. Fetal monitoring is essential to evaluate for fetal goiter, tachycardia, and intrauterine growth abnormalities. In the postpartum period, postpartum thyroiditis and postpartum autoimmune thyroid disease are common and thyroid hormone levels should be monitored in those at risk.
