ABSTRACT
Complications Untreated or partially treated clinical hypothyroidism is associated with increased risk of infertility, miscarriage, preeclampsia (44%), abruption (19%), preterm birth, low birth weight (31%), or fetal death (12%) [7-9]. Fetal goiter does not develop in women with hypothyroidism unless they had previous hyperthyroidism and thyroid-stimulating immunoglobulins (TSIs) are still >200%. Infants whose mothers had serum FT4 below the 10th percentile may have a high incidence of impaired psychomotor function [10].
