Read by QxMD icon Read

Radiation and salivary gland

Nilton Lavatori Correa, Lidia Vasconcellos de Sá, Rossana Corbo
: An increase in the incidence of second primary cancers (SPC) is the late effect of greatest concern that could occur in differentiated thyroid carcinoma (DTC) patients treated with radioactive iodine (RAI). The decision to treat a patient with RAI should therefore incorporate a careful risk-benefit analysis. The objective of this work is to adapt the risk estimation models developed by the Biological Effects of Ionizing Radiation Committee (BEIR VII) to local epidemiological characteristics, to assess the carcinogenesis risk from radiation in a population of Brazilian DTC patients treated with RAI...
October 20, 2016: Thyroid: Official Journal of the American Thyroid Association
Wolfgang P Fendler, Svenja Reinhardt, Harun Ilhan, Andreas Delker, Guido Böning, Franz J Gildehaus, Christian Stief, Peter Bartenstein, Christian Gratzke, Sebastian Lehner, Axel Rominger
Prostate cancer can be targeted by ligands to the prostate-specific membrane antigen (PSMA). We aimed to evaluate dosimetry, safety and efficacy of 177Lu-PSMA-617 radioligand therapy (RLT) in patients with metastatic castration-resistant prostate cancer (mCRPC).Fifteen patients each received two cycles of 3.7 GBq (n = 5) or 6.0 GBq (n = 10) 177Lu-PSMA-617 at an eight to ten weeks interval. For safety monitoring, each treatment was followed by dosimetry with serial quantitative SPECT as well as inpatient and outpatient recording of adverse events...
September 24, 2016: Oncotarget
Stuart E Samuels, Avraham Eisbruch, Karen Vineberg, Jae Lee, Choonik Lee, Martha M Matuszak, Randall K Ten Haken, Kristy K Brock
PURPOSE: Strategies to reduce the toxicities of head and neck radiation (ie, dysphagia [difficulty swallowing] and xerostomia [dry mouth]) are currently underway. However, the predicted benefit of dose and planning target volume (PTV) reduction strategies is unknown. The purpose of the present study was to compare the normal tissue complication probabilities (NTCP) for swallowing and salivary structures in standard plans (70 Gy [P70]), dose-reduced plans (60 Gy [P60]), and plans eliminating the PTV margin...
November 1, 2016: International Journal of Radiation Oncology, Biology, Physics
Bin Xiang, Lichi Han, Xinyue Wang, Ling Tang, Kailiang Li, Xiuxiu Li, Xibo Zhao, Miaomiao Xia, Xixi Zhou, Fuyin Zhang, Ke Jian Liu
PURPOSE: Radiation therapy for head and neck cancer commonly leads to radiation sialadenitis. Emerging evidence has indicated that phenylephrine pretreatment reduces radiosensitivity in the salivary gland; however, the underlying cytoprotective mechanism remains unclear. Nicotinamide phosphoribosyltransferase (NAMPT) is not only a key enzyme for the nicotinamide adenine dinucleotide salvage pathway, but also a cytokine participating in cell survival, metabolism, and longevity, with a broad effect on cellular functions in physiology and pathology...
November 1, 2016: International Journal of Radiation Oncology, Biology, Physics
B M Rabatic, D Zaenger, N A Madden, J A Marascio, K Ciarrocca, S DeRossi, A Amoush, A Al-Basheer, A Green, K Huang, C A Solares, M Groves, J K Byrd, J Brown, M Salgueiro, S Shaaban, M Pishgou, F Mott, C L Ferguson, W F Mourad
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
C E Hsieh, M J Lin, Y Y Wu, J T C Chang, K H Fan, C Y Lin, T M Hung, D L Tsan, B S Huang
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
B J Gebhardt, S M Glaser, S Beriwal, G K Balasubramani, R L Ferris, D E Heron, D A Clump
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
S Joyce van der Geer, Jolanda I Kamstra, Jan L N Roodenburg, Marianne van Leeuwen, Harry Reintsema, Johannes A Langendijk, Pieter U Dijkstra
BACKGROUND: Trismus, a restricted mouth opening in head and neck cancer patients may be caused by tumor infiltration in masticatory muscles, radiation-induced fibrosis or scarring after surgery. It may impede oral functioning severely. The aims of our study were to determine: (1) the incidence of trismus at various time points; and (2) the patient, tumor, and treatment characteristics that predict the development of trismus after radiotherapy in head and neck cancer patients using a large database (n = 641)...
November 2016: Acta Oncologica
Y Pointreau, T Lizée, R-J Bensadoun, P Boisselier, S Racadot, J Thariat, P Graff
Intensity-modulated radiation therapy (IMRT) is the gold standard for head and neck irradiation. It allows better protection to the organs at risk such as salivary glands and mandible, and can reduce the frequency of xerostomia, trismus and osteoradionecrosis. At the time of treatment planning, the mean dose to a single parotid gland should be kept below 26Gy, the mean dose to a single submandibular gland below 39Gy, the mean dose to the mandible below 60 to 65Gy and the D2% to a single temporomandibular joint below 65Gy...
October 2016: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
Benedikt Hofauer, Naglaa Mansour, Clemens Heiser, Ulrich Straßen, Murat Bas, Andreas Knopf
The purpose of this study was to evaluate the utility of acoustic radiation force impulse (ARFI) imaging as a monitoring tool for the effect of a liposomal local therapy in patients with dry mouth symptoms due to primary Sjögren's syndrome (pSS). Fifty patients with pSS, diagnosed according to the American-European Consensus Group (AECG) criteria, were included. Clinical data were collected, and sonographic examination including ARFI imaging of the parotid and submandibular glands was performed. Subjective symptoms were evaluated via visual analogue scales (VAS), and the unstimulated whole salivary flow was measured...
October 2016: Clinical Rheumatology
Nickole Russo, Emily Bellile, Carol Anne Murdoch-Kinch, Min Liu, Avi Eisbruch, Greg T Wolf, Nisha J D'Silva
OBJECTIVE: Approximately one-third of advanced head and neck squamous cell carcinomas (HNSCCs) recur within 2 years of treatment. Due to ease of collection, saliva is of interest to monitor changes that correlate with treatment. Previously this was a challenge due to xerostomia after conventional radiation. The emergence of gland-sparing radiation has made it possible to collect saliva post-treatment. This study investigated changes in cytokines in saliva pre- and post-treatment to provide foundational knowledge for future studies exploring the use of saliva to monitor treatment response...
October 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Travis P Schrank, Kevin Y Zhan, Eric J Lentsch
OBJECTIVE: Major salivary gland large-cell undifferentiated carcinoma (LCUC) is rare and has a poor prognosis. Characterization of patient demographics, tumor characteristics, and predictors of outcome have been limited by low case numbers, as well as grouped analysis with other salivary malignancies. The objective of this study was to address these issues using large-scale national data. STUDY DESIGN: Retrospective case series. METHODS: Data from the National Cancer Database, including cases diagnosed from 1998 to 2012, was analyzed, identifying 247 records of LCUC...
August 22, 2016: Laryngoscope
Sun Hye Jeong, Hyun Sook Hong, Eun Hye Lee
Acoustic structure quantification (ASQ) software was used to analyze statistical information on acquired echo signals, to determine the ability of ASQ to distinguish normal salivary glands of asymptomatic patients from glands of patients with radiation sialadenitis (RS) after radioactive iodine therapy. The ASQ values of 192 salivary glands were compared by multinomial logistic regression analysis, and receiver operating characteristic curves were constructed. Between-observer agreement was assessed by calculating the intra-class correlation coefficient...
November 2016: Ultrasound in Medicine & Biology
XiaoShen Wang, Avraham Eisbruch
Dysphagia and xerostomia are the main sequellae of chemoradiotherapy for head and neck cancer, and the main factors in reducing long-term patient quality of life. IMRT uses advanced technology to focus the high radiation doses on the targets and avoid irradiation of non-involved tissues. The decisions about sparing organs and tissues whose damage causes xerostomia and dysphagia depends on the evidence for dose-response relationships for the organs causing these sequellae. This paper discusses the evidence for the contribution of radiotherapy to xerostomia via damage of the major salivary glands (parotid and submandibular) and minor salivary glands within the oral cavity, and the contribution of radiotherapy-related effect on important swallowing structures causing dysphagia...
August 2016: Journal of Radiation Research
Céleste Rebours, Vincent Couloigner, Louise Galmiche, Odile Casiraghi, Cécile Badoual, Sabah Boudjemaa, Anthony Chauvin, Monique Elmaleh, Brice Fresneau, Sylvie Fasola, Erea-Noël Garabédian, Thierry Van Den Abeele, Daniel Orbach
OBJECTIVES/HYPOTHESIS: To analyze clinical presentations, treatment modalities, and evolution of pediatric cases of salivary gland carcinomas to standardize care for these rare diseases. STUDY DESIGN: Multicentric, retrospective study. METHODS: We included in this retrospective study all children and adolescents (aged ≤18 years) treated from 1992 to 2012 in six pediatric centers in Paris, France. Pathological tumor specimens of these cases were reviewed...
August 6, 2016: Laryngoscope
Benedikt Hofauer, Naglaa Mansour, Clemens Heiser, Markus Wirth, Ulrich Straßen, Denys Loeffelbein, Murat Bas, Andreas Knopf
Acoustic radiation force impulse (ARFI) imaging enables the sonographic measurement of tissue stiffness. The aim of this study was to evaluate if experience in ARFI imaging influences the reproducibility of ARFI imaging of the head and neck. Three experienced sonographers and three inexperienced sonographers performed ARFI imaging of thyroid, submandibular and parotid glands in 10 healthy volunteers. The examination was repeated after 2 wk. Ten single ARFI measurements were done in every gland. Inter-rater and intra-rater reliability was analyzed using the intra-class correlation coefficient (ICC)...
November 2016: Ultrasound in Medicine & Biology
Venla Loimu, Tiina Seppälä, Mika Kapanen, Laura Tuomikoski, Heidi Nurmi, Antti Mäkitie, Mikko Tenhunen, Kauko Saarilahti
BACKGROUND AND PURPOSES: Permanent xerostomia as a result of radiation-induced salivary gland damage remains a common side effect of radiotherapy (RT) of the head and neck. The purpose of this study was to evaluate the usefulness of diffusion-weighted magnetic resonance imaging (DW-MRI) in assessing the post-RT salivary gland function in patients with head and neck cancer (HNC). MATERIALS AND METHODS: In this prospective study, 20 HNC patients scheduled for bilateral neck chemoradiotherapy (CRT) with weekly cisplatin went through diffusion-weighted magnetic resonance imaging (DW-MRI) and salivary gland scintigraphy (SGS) prior to and at a mean of six months after completing the treatment...
July 27, 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
Eli Sapir, Yebin Tao, Felix Feng, Stuart Samuels, Issam El Naqa, Carol A Murdoch-Kinch, Mary Feng, Matthew Schipper, Avraham Eisbruch
OBJECTIVE(S): Dysgeusia is a significant factor reducing quality of life and worsening dysphagia in patients receiving chemoradiation therapy for head and neck cancer. The factors affecting dysgeusia severity are uncertain. We investigated the effects on patient-reported dysgeusia of doses to the oral cavity, salivary output (required to dissolve food particles), and patient-reported xerostomia. METHODS AND MATERIALS: Seventy-three patients with stage III to IV oropharyngeal cancer (OPC) (N=73) receiving definitive intensity modulated radiation therapy concurrently with chemotherapy participated in a prospective, longitudinal study of quality of life (QOL), including assessment of patient-reported gustatory function by taste-related questions from the Head and Neck QOL instrument (HNQOL) and the University of Washington Head and Neck-related QOL instrument (UWQOL), before therapy and periodically after treatment...
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
Liping Xu, Xi Yang, Jiayan Chen, Xiaolin Ge, Qin Qin, Hongcheng Zhu, Chi Zhang, Xinchen Sun
OBJECTIVE: Statins are widely used lipid-lowering drugs, which have pleiotropic effects, such as anti-inflammation, and vascular protection. In our study, we investigated the radioprotective potential of simvastatin (SIM) in a murine model of radiation-induced salivary gland dysfunction. DESIGN: Ninety-six Institute of Cancer Research mice were randomly divided into four groups: solvent + sham irradiation (IR) (Group I), SIM + sham IR (Group II), IR + solvent (Group III), and IR + SIM (Group IV)...
2016: Drug Design, Development and Therapy
Lars Christian Gormsen, Elias Immanuel Sundelin, Jonas Brorson Jensen, Mikkel Holm Vendelbo, Steen Jakobsen, Ole Lajord Munk, Mette Marie Hougaard Christensen, Kim Brøsen, Jørgen Frøkiær, Niels Jessen
: Metformin is the most widely prescribed oral anti-glycemic drug with few adverse effects. However, surprisingly little is known about its human biodistribution and target tissue metabolism. In animal experiments we have shown that metformin can be labelled by (11)C and that (11)C-metformin Positron emission tomography (PET) can be used to measure renal function. Here, we extend these pre-clinical findings by a first-in-human (11)C-metformin PET dosimetry, biodistribution and tissue kinetics study...
July 28, 2016: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"