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KMID : 0358420100530090795
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Korean Journal of Obstetrics and Gynecology
2010 Volume.53 No. 9 p.795 ~ p.803
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Perinatal outcome of pregnancy with hyperthyroidism
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Ko Hyun-Sun
Jang Dong-Gyu
Shin Jae-Eun
Kim Yeon-Hee
Park In-Yang
Shin Jong-Chul
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Abstract
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Objective: To evaluate the maternal and neonatal outcomes of pregnancies complicated with hyperthyroidism, according to the maternal treatment and thyroid function status during pregnancy.
Methods: This retrospective study was conducted on women complicated by hyperthyroidism who delivered between January 2000 and March 2010, at Catholic University Medical Center. The baseline characteristics as well as maternal and fetal outcomes were analyzed and compared according to maternal antithyroid medication and thyroid function status.
Results: Among 163 pregnant women complicated with hyperthyroidism, 103 women received antithyroid medication and 109 women showed euthyroid status during pregnancy. The mean gestational age and fetal birth weight at delivery were 38.2±2.9 weeks and 2.99±0.64 kg. There was no statistical difference in maternal complications between the medication group (n=103) and the non-medication group (n=59), while neonatal thyroid dysfunction including transient hypothyroidism was significantly higher in the medication group than the non-medication group (58% vs 24.5%, P<0.0001). The incidence of admission due to hyperemesis and neonatal thyroid dysfunction were significantly higher in the thyroid dysfunction group than the euthyroid group (21.7% vs 4.6%, P=0.0146; 66.7% vs 39.4%, P=0.0223, respectively).
Conclusion: Maternal antithyroid medication as well as thyroid dysfunction during pregnancy could indicate the careful fetal thyroid monitoring to prevent neonatal thyroid dysfunction.
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KEYWORD
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Pregnancy, Hyperthyroidism
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