View clinical trials related to Thyroid Nodule.
Filter by:Recurrent nerve palsy is a complication of thyroidectomy. Most surgeons want to visualize the vocal cords after tyroidectomy. The aim is to compare the direct laringoscopy, videolaringoscopy, fiberoptic laringoscopy and ultrasonography methods in terms of efficacy, duration and hemodynamic responses during the procedure.
Ideally randomized controlled trials should be carried out to compare the cost-effectiveness between FNAC and watchful waiting but such studies are very difficult to conduct in practice because they require following up very large number of subjects for a long period of time. The aims are to determine the health-related quality of life (HRQOL) and HRQOL preference (utility) of patients undergoing watchful observation (no FNAC) and routine FNAC, and to determine the cost-effectiveness of two strategies in managing small incidental thyroid nodules for the Chinese population in Hong Kong.
Recently, targeted next generation sequencing (NGS) platforms have been introduced that allow inexpensive testing for hundreds of mutational hotspots at the same time. A number of additional mutational markers in thyroid cancer have been identified. Highly promising markers associated with tumor prognosis have also been found. This multi-institutional study aims to validate the diagnostic use of mutational markers in thyroid nodules with indeterminate cytology. The proposed hypothesis is that a broad NGS-based genotyping of thyroid nodules using a large panel of mutational markers applied to thyroid FNA samples can provide an accurate cancer risk stratification in thyroid nodules. The performance of the panel will be tested in a multi-institutional double-blind prospective study of FNA samples from thyroid nodules with indeterminate cytology and available surgical outcome
Use of a high intensity focused ultrasound (HIFU) in patients with non-malignant thyroid nodules.
The purpose of this study is to evaluate thyroid nodule's volume, structure and vascularisation changes following HIFU therapy assessed by ultrasonography
The purpose of this study is to determine whether the use of molecular imaging using FDG-PET/CT could prevent unnecessary diagnostic thyroid surgery in case of indeterminate cytology during fine-needle aspiration biopsy.
We aim to study the effect of local anesthetic when used in conjunction with general anesthesia during thyroidectomy or parathyroidectomy. We hypothesize there is equivalent pain control between bilateral superficial cervical plexus block and local wound infiltration when used in conjunction with a general anesthetic.
Background: The main goal when diagnosing thyroid nodules, is to differentiate the few malignant from the overwhelming background of benign nodules. Currently available pre-operative tests are unable to rule out malignancy in a subset of patients and diagnostic thyroid surgery is necessary. Therefore, there is a need to develope the diagnostic tools for pre-operative diagnostic work-up of thyroid nodules. The study will investigate a novel ultrasonographic technique called Shear Wave Elastography (SWE) in the pre-operative evaluation of thyroid nodules. Aim: To evaluate the diagnostic value of SWE in the pre-operative diagnosis of thyroid nodules in a tertiary surgical center. Perspectives: An optimization of the pre-operative risk-stratification and diagnosis of thyroid nodules can reduce unnecessary thyroid surgery, with a reduction in morbidity and better use of the economic and surgical resources.
Thyroid cancer is the most common endocrine malignancy and its incidence is rapidly increasing. Palpable thyroid nodules are very common, affecting up to 5% of the general population. Nevertheless, only 5% of the thyroid nodules harbor malignancy, hence the obvious need to accurately characterise these nodules. Ultrasound guided fine needle aspiration biopsy (FNAB) is the most important tool in assessing the nature of thyroid nodules, however, in up to 30% of the biopsies the results are indeterminate. In this proposal, the investigators hypothesize that leftover cells in the FNAB needle may be utilized for molecular analysis with an established microRNA panel and distinguish between malignant and benign lesions. Despite established studies on the diagnostic utility of microRNAs in thyroid nodules, the effect of microRNAs on specific target genes involved in thyroid cancer is poorly studied. In this proposal the investigators hypothesize that the microRNAs identified in our panel will affect intracellular pathways by regulating target genes that are involved in thyroid tumorigenesis. The investigators present preliminary data that confirms that microRNA panel may identify malignancy in thyroid nodules. In aim 1 the investigators will identify the expression profile of miRNAs in the different thyroid cancers. the investigators will statistically quantify the threshold of miRNA dysregulation for malignancy on a large number of tumor and benign samples. This will serve as matrix for defining malignancy on the FNAB samples. In aim 2 the investigators will establish a reliable reproducible method to extract RNA from cells left over in FNAB samples. the investigators' preliminary data support the feasibility of the method and it has not been described previously. This will be the first study that will compare cytology results and microRNA panel analysis on the very same FNAB cells. It will mimic the exact clinical scenario that such microRNA panel can be utilized in the future. Finally, in aim 3 the investigators will characterize the effect of microRNAs on target genes expression. the investigators will identify possible target genes from bioinformatics databases and will perform quantitative measurement of mRNA level of target gene by real time PCR and immunohistochemistry. These studies will hopefully support the utility of microRNAs as a diagnostic tool to accurately identify malignancy in thyroid FNAB leftover cells and point out possible target genes for future therapeutic approaches. This could impact many patients, as thyroid cancer is the 5th most common cancer in women, and the most rapidly growing malignancy in both men and women.
The purpose of the study is to investigate the contribution of molecular cytological analysis (CMA) and shear wave elastography ShearWave (SWE) in the diagnosis of nodules with indeterminate cytology (IC)