View clinical trials related to Hypothyroidism.
Filter by:Iodine 131 (131I） treatment on Graves disease and Graves ophthalmopathy relationship has always been the focus of debate. Majority view is that the current treatment does not increase 131I Graves ophthalmopathy, therefore,Graves disease associated with exophthalmos is not a contraindication of 131I treatment. While treatment with corticosteroids, a timely corrective measures to be effective in preventing Graves ophthalmopathy adverse effects. But the merger with severe proptosis in patients with Graves , especially infiltrative exophthalmos , the application of 131I treatment will induce or aggravate not yet reached consensus, so, the 131I treatment is still very careful , mainly due to plaque prospective study and visual assessment is not lack of uniform standards, and a variety of factors (including smoking, work status, and 131I treatment of thyroid doses, etc.) may also interfere or influence the ultimate effect of 131I on the Graves ophthalmopathy. In the view of this situation Graves disease patients with Graves ophthalmopathy could be 131I treatment or not, how to dose adjustments, and the use of which required treatment with systemic issues such as research, explore treatment exophthalmos reduction and mitigation of increased proptosis reasonable treatment of symptoms. To further promote the standardization of 131I treatment of Graves disease on basis.
Iodine is an essential component of thyroid hormone, which is necessary for many metabolic processes as well as the maturation of the CNS. Deficiencies of iodine have deleterious effects on both pregnant women and infants. The iodine status of the population after implementation of the universal salt iodization program in Zhejiang province has not been known. This study was to determine whether pregnant women show evidence of iodine deficiency, and to examine the correlation between maternal urine iodine concentration and newborn thyroid function.
Our aim is to compare the safety and efficacy of 2 different empiric levothyroxine dose adjustment recommendations to be made at the first confirmation of pregnancy in women with a history of hypothyroidism. Subjects will be women with a prior diagnosis of hypothyroidism who are taking thyroid hormone replacement and who are less than 8 weeks pregnant. Upon confirmation of pregnancy, subjects will be randomized to increase their weekly thyroid hormone dose by either 2 or 3 tablets (28 or 42%). Thyroid function will be evaluated every two weeks in the first 20 weeks and then again at week 30 and post-partum. Primary endpoints will be the proportion of women in each group who remain euthyroid throughout the first trimester and throughout pregnancy.
This study is designed to test the hypothesis that the level of the thyroid hormone thyroxine (specifically, free thyroxine, FT4) circulating in the blood of pregnant women is the key thyroid-related factor to influence early fetal brain development. The investigators will recruit 5000 pregnant women with clinically normal thyroid function (normal thyroid stimulating hormone levels) in the second trimester. After the baby has been born, the investigators will measure FT4 in the second trimester maternal blood sample to identify 100 cases (very low FT4 levels) and 100 matched controls (normal FT4 levels). The children of cases and controls will undergo neurodevelopmental testing at 2 years of age to determine whether IQ differs according to maternal FT4 levels during pregnancy. The potential impact of the study is that if such an effect is found, it might be possible to avoid these adverse developmental consequences in children by designing and testing strategies to identify and treat high risk women.
Participants in this study will be patients diagnosed with or suspected to have a thyroid function disorder. These conditions may include: hypothyroidism, hyperthyroidism, thyroid hormone resistance, Graves' Dermopathy, and thyroid-stimulating hormone (TSH) secreting pituitary adenomas. The main purpose of this study is to further understand the natural history, clinical presentation, and genetics of thyroid function disorders. Many of the tests performed are in the context of standard medical care that is offered to all patients with thyroid function disorders. In addition, blood and tissue samples may be taken for research and genetic studies.