孕早期双胎妊娠甲状腺功能减退对妊娠结局的影响

The impact of hypothyroidism of twin pregnancy in first trimester on pregnancy outcomes

Objective?To investigate the impact of hypothyroidism of twin pregnancy in first trimester on pregnancy outcomes. Methods?A total of 1 203 cases of twin pregnant women were enrolled in this retrospective study and divided into three groups based on maternal TSH concentration in first trimester. Normal TSH group contained twin pregnant women with TSH levels between 0.01 to 3.35 mIU/L in first trimester, TSH>3.35 group contained twin pregnant women whose TSH concentrations between 3.35 to 4 mIU/L, TSH>4 group included those with TSH levels beyond 4 mIU/L. The pregnancy outcomes were analyzed between three groups. Results?Logistics analysis between maternal TSH levels and pregnancy outcomes of twin pregnancy showed TSH beyond 4 mIU/L in first trimester was corelated with the incidence of gestational diabetes mellitus (GDM), and its OR was 3.48, 95% CI was 1.27~9.55. Conclusion?The risk of GDM in twin pregnant women with hypothyroidism in first trimester may increase and TSH>4 mIU/L was one of independent risk factors of GDM.