Tóm tắt

Four pregnant women who were diagnosed gestational transient thyrotoxicosis from 12/2016 to 11/2017 have been followed up until 3/2018. We have some conclusions:
1/ Gestational transient thyrotoxicosis often happens on the first trimester of pregnancy, one patient is on her 8 th week.
2/ Diagnosis based on TSH<0.1mIU/L and high FT4 with beta HCG >50000UI/L, without previous hyperthyrodism history, AntiTPO and TRAb are negative.
3/ Patients don't need to treat with antithyroidsynthesis drugs, they only need to follow up and the thyrotoxicosis will improve in second trimester of pregnancy.
4/ When the stastus of thyrotoxicosis is stable, we need to continue follow up to supplement iode because FT4 may be low especially in twin pregnancy or triple pregnancy