Thyroid antibody positivity in the first trimester of pregnancy is associated with negative pregnancy outcomes.

Context: Thyroid antibody positivity during pregnancy has been associated with adverse outcomes including spontaneous miscarriage, recurrent miscarriage, and preterm delivery.

Objective: The objective of the study was to determine whether thyroid antibody positivity in the first trimester of pregnancy in euthyroid women was associated with maternal and neonatal adverse outcomes.

Design: The present trial is a component of a prospective trial published in 2010 that evaluated screening for thyroid disease during pregnancy and the impact of levothyroxine therapy in women who were thyroid peroxidase positive with a TSH above 2.

High rate of persistent hypothyroidism in a large-scale prospective study of postpartum thyroiditis in southern Italy.

Context: The incidence of postpartum thyroiditis (PPT) varies widely in the literature. Limited data exist concerning the hormonal status of women with PPT at the end of the first postpartum year.

Objective: Our aim was to conduct a large prospective study of the incidence and clinical course of PPT.

Increased pregnancy loss rate in thyroid antibody negative women with TSH levels between 2.5 and 5.0 in the first trimester of pregnancy.

Context: The definition of what constitutes a normal TSH during pregnancy is in flux. Recent studies suggested that the first trimester upper limit of normal for TSH should be 2.5 mIU/liter.

Universal screening versus case finding for detection and treatment of thyroid hormonal dysfunction during pregnancy.

Context: Thyroid disease during pregnancy has been associated with multiple adverse outcomes. Whether all women should be screened for thyroid disease during pregnancy is controversial.

Objective: The objective of the study was to determine whether treatment of thyroid disease during pregnancy decreases the incidence of adverse outcomes and compare the ability of universal screening vs.

Levothyroxine treatment in thyroid peroxidase antibody-positive women undergoing assisted reproduction technologies: a prospective study.

Background: Infertile women positive for thyroid antibodies suffer from a poor pregnancy/delivery outcome, although conflicting data have been published. Our objective was to investigate if levothyroxine (LT4) exerts any effect on pregnancy and/or delivery rates in thyroid peroxidase antibody (TPOAb)-positive (+) women undergoing assisted reproductive technologies.

Methods: Patients undergoing treatment were screened for TPOAb, thyroid-stimulating hormone (TSH) and free thyroxine (FT4).