View clinical trials related to Hypothyroidism.
Filter by:Background: Autoimmune hypothyroidism has been regarded as the most common cause of primary hypothyroidism in iodine sufficient area and has relationship with excess iodine induced hypothyroidism. However, non-immune related hypothyroidism and its relationship with excess iodine have been rarely evaluated. Objective: Therefore, the investigators planned to calculate proportion of non-immune related hypothyroidism and relationship with iodine intake using nationwide data from Korea National Health and Nutrition Examination Survey (KNHANES) 2013-2015. Design: 1. Korea National Health and Nutrition Examination Survey VI (2013 to 2015) - The national data - which is the government designated statistics (Approval No. 117002 ) of South Korea based on the Article 17 of the National Health Promotion Act - were used. The survey was approved by the Institutional Review Board of the Korea Centers for Disease Control and Prevention, and provides only non-identified measures for academic research purposes. 2. The participants who were examined for thyroid stimulating hormone, free thyroxine, thyroid peroxidase antibody (TPO Ab), and urine iodine concentration (UIC) were included. 3. The proportion of immune related and non-immune related hypothyroidism was evaluated. Demographic variables and severity of hypothyroidism were compared between the two groups. To analyze iodine effect on hypothyroidism in TPO Ab positive or negative population, prevalence of hypothyroidism were assessed in each TPO Ab negative and positive population according to UIC subgroups. 4. This study protocol was approved by IRB of SMC (2017-05-149).
Diabetes Mellitus is the most common disorder seen. The impact of this disease on the quality of life, and on morbidity and mortality through the complications that affect the small and large vessels resulting in retinopathy, nephropathy, neuropathy, and ischemic heart disease has been emphasized by the findings of the national commission (USA) on diabetes . So, there was curiosity to understand and learn the association of this disorder with another common endocrine gland function that is thyroid gland . The association between these two disorders has long been recognized although the prevalence of thyroid dysfunction in diabetic population varies widely between studies. With insulin and thyroid hormone being intimately involved in cellular metabolism and thus excess or deficit of these hormones result in functional derangement of the other.
This is a prospective observational study evaluating wound complications following head and neck surgery. Patients undergoing major head and neck surgery will be included in the study. Patients meeting eligibility criteria will be identified by members of the University of Michigan Head and Neck Oncology Division of the Department of Otolaryngology. The primary aim of this study is to identify risk factors for poor wound healing as well as biologic markers associated with wound related complications in head and neck surgery. Most specifically, this study evaluates the effects of thyroid hormone on wound healing. This study will also evaluate pre-operative labs and comorbidities as well as reconstructive factors, post-operative labs, and other variables associated with wound healing. All interventions regarding wound healing fall under current standards of care and standard practice. Data regarding post-operative wound complications will be collected in a prospective fashion on the variables under study using study-specific datasheets. Data sheet will be entered into a secure database for analysis.
Worldwide Data suggest that Iodine deficiency is a concern among healthy pregnant women. Thus, screening first trimester healthy pregnant women for iodine status is of clinical value for mother and child as iodine deficiency might have implications on thyroid function as well as pregnancy outcomes
In women who require thyroid hormone replacement medication, the investigators will compare 2 ways to adjust thyroid medication during pregnancy to determine superiority in maintaining optimal blood levels of thyroid hormone. Thyroid hormone requirements increase significantly in pregnancy and it is important that blood levels of thyroid hormone remain normal so the fetus, which cannot make its own thyroid hormone has enough for early prenatal development. This trial compares 2 methods for adjusting thyroid medicine during pregnancy in women with known thyroid disease. Pregnant women (age 18 to 45) who take thyroid medication will be randomized to either 1) a 2-dose per week increase in thyroid medicine once pregnancy is confirmed, followed by dose adjustments every 2-4 weeks, or 2) adjustments in thyroid medication every 2-4 weeks in micrograms per day based on results of blood tests. The investigators will compare thyroid hormone levels throughout pregnancy between the groups of mothers to determine which method is superior in meeting the increased thyroid hormone requirements during pregnancy.
The present study is divided into two groups ,one is the patients with subclinical hypothyroidism who has TPO antibody positive women with TSH concentrations > 2.5 mU/L and below the upper limit of the pregnancy specific reference range ,another is TPO antibody negative with TSH concentrations greater than the pregnancy specific reference range and below 10.0 mU/L.The two groups are randomized into either the LT4 treatment group or control group by the use of a computer-generated list. The aim of our study is to determine whether the use of levothyroxine is beneficial in patients with subclinical hypothyroidism in two groups。
This study was a prospective, single-center, open-label, non-randomized, pharmacokinetic study using stable isotope carbon-13 labeled levothyroxine
Based on accumulating evidence showing that hypothyroid status is associated with poor prognosis among heart failure (HF) patients, the study is designed to evaluate whether replacement treatment with levothyroxine could have beneficial effects on patients with HF and subclinical hypothyroidism. The study is a prospective, randomized, parallel-group trial to assess the efficacy and safety of levothyroxine replacement on evidence-based HF standard therapy in stable chronic heart failure patients with subclinical hypothyroidism.
A prospective, randomized, single-blind, controlled, investigator-started clinical trial was carried out. Patients with primary hypothyroidism were randomly assigned to the study (VSL#3®+ LT4) and the control group (LT4). A two months treatment phase was followed by two months of follow-up. Clinical examination, blood tests for thyroid function and for peripheral tissue markers of thyroid hormones effect were performed monthly for 4 months. LT4 dose adjustments were performed during the study when necessary.
This is an open-label therapeutic efficacy study of Tirosint (levothyroxine sodium) capsules in thyroidectomized patients taking proton pump inhibitors and levothyroxine, evaluating changes in serum levels of Thyroid Stimulating Hormone (TSH) upon switch to Tirosint with respect to baseline.