Management of Thyroid Peroxidase Antibody Euthyroid Women in Pregnancy: Comparison of the American Thyroid Association and the Endocrine Society Guidelines

Table 1

Comparison of recommendations of the American Thyroid Association [13] and Endocrine Society [14] on the aspects of screening thyroid antibodies in pregnancy.

Topic	Recommendations
	American Thyroid Association (2011) [13]	Endocrine Society (2012) [14]
Screening all women in the first trimester of pregnancy (to prevent spontaneous abortion or miscarriage)	Not recommended, but if identified, serum TSH should be evaluated every 4 weeks during the first half of pregnancy and at least once between 26 and 32 m weeks gestation	Not recommended, but if identified, such women should be screened for serum TSH abnormalities before pregnancy as well as during the 1st and 2nd trimesters of pregnancy
Screening euthyroid women with sporadic or recurrent abortion or in women undergoing IVF	Not recommended	Same (T&R)*
Screening for thyroid antibody in the 1st trimester of pregnancy to prevent preterm delivery	Not recommended	Same (T&R)

*The letters T and R denote that the same recommendation or conception is given in the “text” or in the “recommendation” of the guideline.