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https://www.readbyqxmd.com/read/28821486/delayed-risk-stratification-system-in-pt1an0-nx-dtc-patients-treated-without-radioactive-iodine
#1
Danuta Gąsior-Perczak, Iwona Pałyga, Monika Szymonek, Artur Kowalik, Agnieszka Walczyk, Janusz Kopczyński, Katarzyna Lizis-Kolus, Anna Słuszniak, Janusz Słuszniak, Tomasz Łopatyński, Ryszard Mezyk, Stanisław Góźdź, Aldona Kowalska
PURPOSE: A delayed risk stratification (DRS) system by Momesso et al. was accepted by the American Thyroid Association as a diagnostic tool for the risk stratification of unfavorable clinical outcomes and to monitor the clinical outcomes of differentiated thyroid cancer (DTC) patients treated without radioactive iodine (RAI). The aim of this study was to evaluate the DRS system in patients with pT1aN0/Nx stage . METHODS: The study included 304 low-risk patients after thyroidectomy (n=202) or lobectomy (n=102) without RAI and were treated at a single center...
August 18, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28816536/optimizing-lenvatinib-therapy-in-patients-with-metastatic-radioactive-iodine-resistant-differentiated-thyroid-cancers
#2
Sina Jasim, Nicole M Iniguez-Ariza, Crystal R Hilger, Ashish V Chintakuntlawar, Mabel M Ryder, John C Morris, Keith C Bible
BACKGROUND AND OBJECTIVES: Lenvatinib is approved for use in advanced radioactive iodine resistant differentiated thyroid cancers (RAIR-DTCs); its efficacy is indisputable, but toxicities are great, creating daunting challenges for patients and providers. Few data regarding early adverse events and impact on quality of life (QOL) exist; we sought to add clarity to these issues by analyzing our initial post-approval lenvatinib experience. METHODS: Standardized patient education was implemented, providing detailed instructions and expert provider contacts to facilitate timely reporting of toxicities and guide responsive actions...
August 17, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28816214/synchronous-malignancies-of-thyroglossal-duct-cyst-and-thyroid-gland
#3
Chinna Naik, Sandip Basu
Malignant involvement of thyroglossal duct cyst is rare, still rarer is the synchronous malignant involvement of the thyroid gland. Although the Sistrunk procedure is often regarded as adequate, controversy exists of the need for an additional total thyroidectomy and radioiodine ablative therapy, the decision of which depends upon the presence of (i) suspicious thyroid gland nodule; (ii) presence of lymphadenopathy; or (iii) a previous history of neck irradiation. We report a 47-year-old woman diagnosed with papillary carcinoma within a recurrent thyroglossal duct cyst with infiltration into surrounding soft tissues and a suspicious thyroid nodule of the left thyroid lobe with no regional lymph node involvement...
March 2017: National Medical Journal of India
https://www.readbyqxmd.com/read/28814251/the-role-of-radiopharmaceuticals-in-amiodarone-induced-thyroid-pathology
#4
Doina Piciu, Alexandru Irimie
Amiodarone is a di-iodinated benzofuran derivative and is classified as a class III antiarrhythmic agent. It is one of the most powerful and effective antiarrhythmics, being a first-line agent due to its ability to treat ventricular and supraventricular dysrhythmias; since 1960 the drug has become one of the most frequently prescribed antiarrhythmics, despite its potentially serious, side effects. By far, one of the most challenging condition is the thyroid pathology induced by this drug. Each 200 mg tablet of amiodarone contains approximately 75 mg of iodine, 3-10% from each tablet being released as free iodine...
August 16, 2017: Current Radiopharmaceuticals
https://www.readbyqxmd.com/read/28811561/analysis-of-risk-factors-of-rapid-thyroidal-radioiodine-131-turnover-in-graves-disease-patients
#5
Ruiguo Zhang, Jian Tan, Renfei Wang, Guizhi Zhang, Qiang Jia, Zhaowei Meng, Yueqian Zhang
Rapid iodine-131((131)I) turnover in the thyroid gland is an important feature of Graves' disease (GD) and also a strong predictor of radioiodine therapy failure. The aim of this study was to explore the predictors of rapid (131)I turnover. The clinical data on 2543 patients were retrospectively reviewed. Patients were divided into 2 groups depending on present or absent with rapid (131)I turnover defined as a 4-hour to 24-hour (131)I uptake ratio of ≥1. Overall, 590 cases (23.2%) had a rapid (131)I turnover...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28806348/radioprotective-effect-of-vitamin-e-on-salivary-glands-after-radioiodine-therapy-for-differentiated-thyroid-cancer-a-randomized-controlled-trial
#6
Arun Upadhyaya, Pingping Zhou, Zhaowei Meng, Peng Wang, Guizhi Zhang, Qiang Jia, Jian Tan, Xue Li, Tianpeng Hu, Na Liu, Sen Wang, Xiaoxia Liu, Huiying Wang, Chunmei Zhang, Fengxiao Zhao, Ziyu Yan, Xiaoran Wang, Xuemeng Zhang, Wan Zhang
OBJECTIVES: This study aimed to examine the radioprotective effect of vitamin E on salivary glands after radioactive iodine (I) therapy in patients with differentiated thyroid cancer. PATIENTS AND METHODS: Eighty-two patients with differentiated thyroid cancer were enrolled in this study. They were divided randomly into four groups (control group: 22 cases, group A: 23 cases, group B: 22 cases, and group C: 15 cases) before postsurgical ablation therapy with 100 mCi I...
August 11, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28804863/personalised-immunomodulating-treatments-for-graves-disease-fact-or-fiction
#7
Tristan Mirko Struja, Alexander Kutz, Stefan Fischli, Christian Meier, Beat Müller, Philipp Schütz
Although Graves' disease has been recognised for more than 100 years, its physiopathological mechanisms are incompletely understood. Treatment strategies today mainly focus on suppression of thyroid hormone production by use of antithyroid drugs or radio-iodine, but neglect the underlying immunological mechanisms. Although Graves' disease is often seen as a prototype for an autoimmune mechanism, it is more likely to be a heterogeneous syndrome showing characteristics of both autoimmunity and immunodeficiency...
August 14, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28791246/etiologies-and-posttreatment-conditions-of-thyrotoxic-patients-in-sylhet-division-bangladesh-a-clinical-series
#8
Md Kayes Mahmud, Shahnaz Jalil, Ahm Mahmudur Rahman, Md Mamun-Ur Rashid, Shiny Sultana, Adnan Taher, Lutful Haque, Jannatul Fardous, Kamrun Nahar
OBJECTIVE: The endeavor of the study was to analyze the posttreatment (postradioactive iodine therapy [RAI]) conditions of thyrotoxic patients in a tertiary level hospital. MATERIALS AND METHODS: A retrospective study of 186 patients was conducted from 2012 to 2014 in Institute of Nuclear Medicine and Allied Sciences (INMAS), Sylhet MAG Osmani Medical College Campus. Patients' information regarding the etiologies and their disease status after getting RAI therapy was recorded...
July 2017: Avicenna Journal of Medicine
https://www.readbyqxmd.com/read/28790138/amifostine-does-not-protect-thyroid-cancer-cells-in-dna-damaging-in-vitro-models
#9
Joanna Klubo-Gwiezdzinska, John Costello, Kirk Jensen, Aneeta Patel, Rok Tkavc, Douglas Van Nostrand, Kenneth Burman, Leonard Wartofsky, Vasily Vasko
BACKGROUND: Amifostine is a potent scavenger of reactive oxygen species that is used for the salivary gland protection during therapy with radioactive iodine for thyroid cancer. There are no data on the potential effect of amifostine on thyroid cancer cells. METHODS: We investigated the effects of the active form of amifostine (WR-1065) on the response of thyroid cancer cells to treatment with DNA damaging agents. WR-1065 was examined in human thyroid cancer cell lines (FTC133, TPC1, BCPAP and C643) and embryonic fibroblast cells NIH3T3...
August 8, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28782127/crucial-parameters-in-thyroid-carcinoma-reporting-challenges-controversies-and-clinical-implications
#10
Bin Xu, Ronald Ghossein
In the modern era, a pathology report of thyroid carcinoma requires the inclusion of numerous prognostically relevant histopathologic features, e.g. the presence and extent of vascular and capsular invasion, extrathyroidal extension, the surgical margin status, and the characteristics of nodal metastasis. These pathologic features are crucial components of the initial risk stratification to determine the need for completion thyroidectomy and/or post-operative radioactive iodine ablation therapy. The current review aims to summarize the diagnostic criteria, the controversies, the prognostic impacts, and the challenges of these pathologic characteristics, focusing specifically on the parameters that are incorporated into the American Joint Committee on Cancer (AJCC) staging system, College of American Pathologists (CAP) reporting template, American Thyroid Association (ATA), and National Comprehensive Cancer Network (NCCN) guidelines...
August 7, 2017: Histopathology
https://www.readbyqxmd.com/read/28760238/selected-controversies-of-radioiodine-imaging-and-therapy-in-differentiated-thyroid-cancer
#11
REVIEW
Douglas Van Nostrand
This article discusses the more controversial areas of the management of differentiated thyroid cancer, namely, the utility of pretherapy staging radioiodine scans; the prescribed activity for iodine-131 remnant ablation, adjuvant treatment, and distant metastases; preparation with thyroid hormone withdrawal versus recombinant human thyroid-stimulating hormone; and the classification of radioiodine refractory differentiated thyroid cancer. The author reviews various aspects of the controversies, such as the recommendations of the 2015 guidelines of the American Thyroid Association, arguments for and against the various controversies, and selected references...
September 2017: Endocrinology and Metabolism Clinics of North America
https://www.readbyqxmd.com/read/28759148/efficacy-of-prednisone-for-prevention-of-esophageal-stricture-after-endoscopic-submucosal-dissection-for-superficial-esophageal-squamous-cell-carcinoma
#12
Gaosu Zhou, Fangfang Yuan, Jizhen Cai, Xiaowei Tang, Wei Gong, Lei Su, Yali Zhang
BACKGROUND: Our objective was to investigate the efficacy and safety of oral prednisone for the prevention of esophageal stricture formation after endoscopic submucosal dissection (ESD) in an optimal administration program. METHODS: Patients who underwent circumferential or semi-circumferential (more than three quarters but not a complete circular) ESD for esophageal squamous cell carcinoma were eligible for this study. Oral prednisolone was administered to the study group at a dose of 30 mg/day on the third day post-ESD, and then tapered gradually (30, 25, 20, 15, 10, and 5 mg for 14 days)...
July 31, 2017: Thoracic Cancer
https://www.readbyqxmd.com/read/28750318/pegylated-nh4-xwo3-nanorods-as-efficient-and-stable-multifunctional-nanoagents-for-simultaneous-ct-imaging-and-photothermal-therapy-of-tumor
#13
Daniel K Macharia, Qiyun Tian, Liang Chen, Yingqi Sun, Nuo Yu, Chuanglong He, Han Wang, Zhigang Chen
The simultaneous imaging and photothermal therapy of tumors have attracted much attention, and a prerequisite is to obtain multifunctional nanomaterials. Ideally, one kind of nanoparticles with single component can be used as both imaging agent and photothermal agent. Herein, we have developed the PEGylated (NH4)xWO3 (denoted as (NH4)xWO3-PEG) nanorods as multifunctional nanoparticles with single semiconductor component. (NH4)xWO3-PEG nanorods with about 30nm diameter and length of several hundred nanometers have been obtained through a solvothermal synthesis-PEGylation two-step route...
July 18, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28749176/quantifying-potential-reduction-in-contrast-dose-with-monoenergetic-images-synthesized-from-duallayer-detector-spectral-ct
#14
Derek S Tsang, Thomas E Merchant, Sophie E Merchant, Hanna Smith, Yoad Yagil, Chia-Ho Hua
OBJECTIVES: To estimate the potential dose reduction in iodinated contrast when interpreting monoenergetic images from spectral CT. METHODS: 51 pediatric patients received contrast-enhanced CT simulation for radiation therapy using a single-source, dual-layer detector spectral CT. The contrast-to-noise ratios (CNR) of blood vessels were measured relative to surrounding soft tissue. CNRs on monoenergetic 40-70 keV images were compared with polychromatic 120 kVp images...
July 27, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28746798/thyroid-disease-symptoms-during-early-pregnancy-do-not-identify-women-with-thyroid-hypofunction-that-should-be-treated
#15
V J Pop, M A Broeren, W M Wiersinga, A Stagnaro-Green
OBJECTIVE: to evaluate whether women during early pregnancy with ''hypothyroidism'' symptoms are at risk for biochemical defined hypothyroidism. The 2017 guidelines of the American Thyroid Association (ATA) recommend case finding on the basis of symptoms to identify these women during pregnancy, while evidence is lacking. DESIGN: Construct validation of a thyroid hypofunction symptom checklist during first trimester of pregnancy comparing high scores with biochemical defined hypothyroidism...
July 26, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28744708/topics-of-nuclear-medicine-research-in-europe
#16
REVIEW
Masayuki Inubushi, Tomohiro Kaneta, Takayoshi Ishimori, Etsuko Imabayashi, Atsutaka Okizaki, Naohiko Oku
Last year in the European Journal of Nuclear Medicine and Molecular Imaging, we introduced some recent nuclear medicine research conducted in Japan. This was favorably received by European readers in the main. This year we wish to focus on the Annals of Nuclear Medicine on some of the fine nuclear medicine research work executed in Europe recently. In the current review article, we take up five topics: prostate-specific membrane antigen imaging, recent advances in radionuclide therapy, [(18)F]fluorodeoxyglucose positron-emission tomography (PET) for dementia, quantitative PET assessment of myocardial perfusion, and iodine-124 ((124)I)...
July 25, 2017: Annals of Nuclear Medicine
https://www.readbyqxmd.com/read/28736501/design-of-radioiodinated-pharmaceuticals-structural-features-affecting-metabolic-stability-towards-in-vivo-deiodination
#17
REVIEW
Lorenzo Cavina, Dion van der Born, Peter H M Klaren, Martin C Feiters, Otto C Boerman, Floris P J T Rutjes
Radioiodinated pharmaceuticals are convenient tracers for clinical and research investigations because of the relatively long half-lives of radioactive iodine isotopes (i.e., (123)I, (124)I, and (131)I) and the ease of their chemical insertion. Their application in radionuclide imaging and therapy may, however, be hampered by poor in vivo stability of the C-I bond. After an overview of the use of iodine in biology and nuclear medicine, we present here a survey of the catabolic pathways for iodinated xenobiotics, including their biodistribution, accumulation, and biostability...
June 30, 2017: European Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28729772/serial-stimulated-thyroglobulin-measurements-are-more-specific-for-detecting-distant-metastatic-differentiated-thyroid-cancer-before-radioiodine-therapy
#18
Teng Zhao, Jun Liang, Tianjun Li, Wen Gao, Yansong Lin
OBJECTIVE: Preablative stimulated thyroglobulin (ps-Tg) has the potential to be used in identifying distant metastatic differentiated thyroid carcinoma (DM-DTC), but its single level can be affected by remnant thyroid tissue and thyrotropin (TSH). The objective of this retrospective study was to evaluate the value of serial ps-Tg measurements in identifying DM-DTC specifically. METHODS: A total of 317 DTC patients with serial measurements of ps-Tg, TSH and anti-Tg antibody were divided into M1 (n=72) and M0 (n=245) according to the presence of distant metastasis (DM) or not...
June 2017: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
https://www.readbyqxmd.com/read/28718888/assessing-lung-function-using-contrast-enhanced-dual-energy-computed-tomography-for-potential-applications-in-radiation-therapy
#19
Andréanne Lapointe, Houda Bahig, Danis Blais, Hugo Bouchard, Édith Filion, Jean-François Carrier, Stéphane Bedwani
PURPOSE: There is an increasing interest in the evaluation of lung function from physiological images in radiation therapy treatment planning to reduce the extent of post-radiation toxicities. The purpose of this work is to retrieve reliable functional information from contrast-enhanced dualenergy computed tomography (DECT) for new applications in radiation therapy. The functional information obtained by DECT is also compared with other methods using single energy CT (SECT) and single-photon emission computed tomography (SPECT) with CT...
July 18, 2017: Medical Physics
https://www.readbyqxmd.com/read/28717890/application-of-phototherapy-for-the-healing-of-the-navels-of-neonatal-dairy-calves
#20
Ana Lúcia Borges de Souza Faria, Luis Augusto Lupato Conrado, Luiz Sergio Vanzela, Antonio Balbin Villaverde, Egberto Munin
The present work evaluated the effects of LED light irradiation on the healing of the navels of neonatal dairy calves. Fifty-seven neonatal calves were divided into two groups. Animals had their umbilical stumps immersed in 10% iodine tincture for 60 s, and this process was repeated every 24 h for three consecutive days. The 29 animals in the first group did not receive LED therapy. The 28 animals in the second group received LED light irradiation at 640 nm with 300 mW power, 46.8 J/cm(2) energy density, 60 s irradiation time, and 0...
July 17, 2017: Lasers in Medical Science
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