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Introduction to European comments on "Medullary Thyroid Cancer: management guidelines of the American Thyroid Association".

ABSTRACT: Guest Editors of Thyroid Research supplement devoted to medullary thyroid cancer present the history on how the discussion about "Medullary Thyroid Cancer: management guidelines of the American Thyroid Association" was initiated and subsequently widely commented before and during European Thyroid Association - Cancer Research Network Meeting in Lisbon. It is explained why it has been decided to publish the manuscripts within the supplement - to document voices from the discussion and popularize them.

SUBMITTER: Jarzab B

PROVIDER: S-EPMC3599712 | biostudies-literature | 2013 Mar

REPOSITORIES: biostudies-literature

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Introduction to European comments on "Medullary Thyroid Cancer: management guidelines of the American Thyroid Association".

Jarzab Barbara B Feldt-Rasmussen Ulla U

Thyroid research 20130314

Guest Editors of Thyroid Research supplement devoted to medullary thyroid cancer present the history on how the discussion about "Medullary Thyroid Cancer: management guidelines of the American Thyroid Association" was initiated and subsequently widely commented before and during European Thyroid Association - Cancer Research Network Meeting in Lisbon. It is explained why it has been decided to publish the manuscripts within the supplement - to document voices from the discussion and popularize ...[more]

PMID: 23514266

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Project description:BackgroundThyroid nodules are a common clinical problem, and differentiated thyroid cancer is becoming increasingly prevalent. Since the American Thyroid Association's (ATA's) guidelines for the management of these disorders were revised in 2009, significant scientific advances have occurred in the field. The aim of these guidelines is to inform clinicians, patients, researchers, and health policy makers on published evidence relating to the diagnosis and management of thyroid nodules and differentiated thyroid cancer.MethodsThe specific clinical questions addressed in these guidelines were based on prior versions of the guidelines, stakeholder input, and input of task force members. Task force panel members were educated on knowledge synthesis methods, including electronic database searching, review and selection of relevant citations, and critical appraisal of selected studies. Published English language articles on adults were eligible for inclusion. The American College of Physicians Guideline Grading System was used for critical appraisal of evidence and grading strength of recommendations for therapeutic interventions. We developed a similarly formatted system to appraise the quality of such studies and resultant recommendations. The guideline panel had complete editorial independence from the ATA. Competing interests of guideline task force members were regularly updated, managed, and communicated to the ATA and task force members.ResultsThe revised guidelines for the management of thyroid nodules include recommendations regarding initial evaluation, clinical and ultrasound criteria for fine-needle aspiration biopsy, interpretation of fine-needle aspiration biopsy results, use of molecular markers, and management of benign thyroid nodules. Recommendations regarding the initial management of thyroid cancer include those relating to screening for thyroid cancer, staging and risk assessment, surgical management, radioiodine remnant ablation and therapy, and thyrotropin suppression therapy using levothyroxine. Recommendations related to long-term management of differentiated thyroid cancer include those related to surveillance for recurrent disease using imaging and serum thyroglobulin, thyroid hormone therapy, management of recurrent and metastatic disease, consideration for clinical trials and targeted therapy, as well as directions for future research.ConclusionsWe have developed evidence-based recommendations to inform clinical decision-making in the management of thyroid nodules and differentiated thyroid cancer. They represent, in our opinion, contemporary optimal care for patients with these disorders.

Project description:The main subjects of discussion, held online within the ETA-CRN board invited 16 expert-panelists are shown. The ad hoc emerged ETA-CRN panel of experts (EPE) first congratulated Professor Kloos and the ATA Taskforce for the extensive work on medullary thyroid cancer, and appreciated discussing the ATA guidelines during the ETA-CRN meeting. As it was not possible for all experts to visit the meeting, they enclosed their comments in the online ETA forum. The overall intention was to evaluate certain discrepancies between the ATA guidelines and were biased European clinical practice.All discussants were aware that the ATA guidelines had followed evidence based medicine rules; however, it was intended to reach an European consensus in this matter. The results of online voting among the EPE are shown.We received answers from nine experts. The particular ATA guidelines devoted to the management of MTC ranged in agreement in 0/9 to 4/9. This did not reflect the general, good assessment of the guidelines, as of votes a set of questions.The strongest discrepancies were found in assessment of the usefulness of pentagastrin (Peptavlon®) stimulated calcitonin secretion. The majority of the EPE (5/9) chose an option: "the increase of the basal Ct >100 ng/L means the substantial risk of MTC. However, there should also have been a recommendation for the grey zone 10-100 ng/L, where stimulation with pentagastrin is useful. The cut-off to perform stimulation test at ? 15-20 ng/L and values >100 ng/L means a significant suspicion of MTC".Similarly, attention from the EPE was raised towards the surgical procedures in MTC, particularly the extent and indications for lymph node surgical intervention. Four questions were related to the indications to lymphadenectomy and extent of surgery. The equal number (4/8) of EPE agreed with the ATA R61 and half of the ETA-CRN panel of experts disagreed because the indications to lymphadenectomy (Lx) depended in their opinion on the tumors detected by the Ct screening, in which prophylactic Lx might not be necessary."Notwithstanding the evidence based guidelines, their final acceptation requires unrestricted discussion and consideration of differences in clinical practice and experience between countries".

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Introduction to European comments on "Medullary Thyroid Cancer: management guidelines of the American Thyroid Association".

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Introduction to European comments on "Medullary Thyroid Cancer: management guidelines of the American Thyroid Association".

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