Active clinical trials for "Thyroid Diseases"

Thyroid nodules are a very common clinical problem with prevalence of up to 68% in adults on high-resolution ultrasound .Ultrasound used in order to differentiate between benign and malignant lesion in the thyroid has shown sensitivity of 93.8% and specificity of 66% and US guided ( Fine needle aspiration ) FNA is known to be the test of choice in order to determine the nodules nature . Four to 6.5 % of all nodules are malignant .There are several guidelines that were suggested to help predict the risk stratification of thyroid nodules by ultrasound . The American Thyroid Association (ATA) is widely used as evaluation, clinical and ultrasound criteria for fine-needle aspiration biopsy and management of thyroid nodules. The recent ACR TIRADS is a reporting system for thyroid nodules on ultrasound proposed by the American College of Radiology (ACR) published april 2017 that uses a slightly different scoring system for recommendation for FNA of thyroid. The aim of this study is to validate TIRADS ACR 2017 risk stratification in the patient population in comparison to ATA risk stratification

Thyroid nodules are a common presentation in the clinic, with an increasing incidence, especially in women. Their clinical significance is mainly related to excluding malignancy (4.0 to 6.5% of all thyroid nodules).

Two hundred and ninety pregnant women with gestational age less than 20 weeks will be recruited in this study. Selenium and iodine conditions, and risk of thyroid disease will be monitored until termination of pregnancy, with pregnancy outcomes recorded.

Physiological changes necessitate the use of pregnancy-specific reference ranges for TSH and FT4 to diagnose thyroid dysfunction during pregnancy. Although many centers use fixed upper limits for TSH of 2.5 or 3.0 mU/L, this may lead to overdiagnosis or even overtreatment. The new guidelines of the American Thyroid Association have considerably changed recommendations regarding thyroid function reference ranges in pregnancy accordingly. Any hospital or physician that is still using the 2.5 or 3.0 mU/l cut-off for TSH during pregnancy should evaluate their own lab-specific cut-offs. The investigator's objective is to establish a rational reference range of serum TSH for diagnosis of subclinical hypothyroidism in the first and second trimester of pregnant women in west Black Sea region in Turkey.

In the outpatient clinic based population setting, the investigators want to reappraise the accuracy of the new model of multi-factorial ultrasound diagnosis with the conventional fine-needle aspiration cytology.

In the last decades, thyroid cancer incidence has continuously increased all over the world, almost exclusively due to a sharp rise in the incidence of the papillary histologic subtype, which has the highest incidence of multifocality. Furthermore, Black Sea and Eastern European regions are both endemic and known to have been under the influence of Chernobyl nuclear explosion. Although overscreening might have a role in certain parts of the world, the predictors of malignancy such as family history, genetical disorders, previous radiation exposure, low iodine intake, diabetes and obesity, should also be taken into consideration in determining the extent of surgery.

Thyroid nodules are a common finding in the general population,however, they are mostly unpalpable and usually discovered either during neck ultrasound (US) examination or by pathological examination at autopsy. They are found in about 8% of adults. Most thyroid nodules ''incidentalomas" are benign, however 7% may be malignant. Early detection of thyroid cancer helps in early treatment and better survival US is an accurate method for detection of thyroid nodules; however, US has a low accuracy in differentiating between benign from malignant thyroid nodules . US could suggest a malignancy likelihood criteria of a thyroid nodule, such as hypoechogenicity, increased intranodular vascularity, irregular margins, microcalcifications, absent halo, and a taller-than-wide shape measured in the transverse dimension.

The present Ph.D.-study investigates the mechanisms behind the association between thyroid autoimmunity and reproductive failure.

The purpose of this registry is to collect uniform genomics-centered data on patients with nodular thyroid disease and cancer in a prospective fashion. After initial clinical evaluation patients with thyroid nodules will undergo standard ultrasonographic evaluation and a needle biopsy of the thyroid (fine needle aspiration (FNA) or core biopsy) as clinically indicated. Biopsy samples will be evaluated cyto-pathologically. A molecular/genomic profiling will be obtained using Thyroseq v2 test. Surgical treatment will be performed as per clinically determined indications. Standard surgical pathology will be processed and reported per the institutional policy and procedures. A molecular/genomic profiling will be obtained using Thyroseq v2 on the surgical specimen. All patients undergoing thyroid nodule work-up may be enrolled. The registry will collect patient demographic and clinical data, cytopathology reports, and surgical pathology reports and slides (if/when a review is required).

To investigate the genetic mutations of patients with thyroid carcinoma and find molecular targets for therapy.