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https://www.readbyqxmd.com/read/29779202/tumour-stage-and-gender-predict-recurrence-and-second-primary-malignancies-in-head-and-neck-cancer-a-multicentre-study-within-the-inhance-consortium
#1
Emanuele Leoncini, Vladimir Vukovic, Gabriella Cadoni, Luca Giraldi, Roberta Pastorino, Dario Arzani, Livia Petrelli, Victor Wünsch-Filho, Tatiana Natasha Toporcov, Raquel Ayub Moyses, Keitaro Matsuo, Cristina Bosetti, Carlo La Vecchia, Diego Serraino, Lorenzo Simonato, Franco Merletti, Paolo Boffetta, Mia Hashibe, Yuan-Chin Amy Lee, Stefania Boccia
Recurrence and second primary cancer (SPC) continue to represent major obstacles to long-term survival in head and neck cancer (HNC). Our aim was to evaluate whether established demographics, lifestyle-related risk factors for HNC and clinical data are associated with recurrence and SPC in HNC. We conducted a multicentre study by using data from five studies members of the International Head and Neck Cancer Epidemiology consortium-Milan, Rome, Western Europe, Sao Paulo, and Japan, totalling 4005 HNC cases with a median age of 59 (interquartile range 52-67)...
May 19, 2018: European Journal of Epidemiology
https://www.readbyqxmd.com/read/29777595/a-ring-based-compensator-imrt-system-optimized-for-low-and-middle-income-countries-design-and-treatment-planning-study
#2
Jonathon Van Schelt, Daniel Smith, Nicholas Fong, Dolla Toomeh, Patricia A Sponseller, Derek W Brown, Meghan W Macomber, Nina A Mayr, Shilpen Patel, Adam Shulman, G V Subrahmanyam, K Govindarajan, Eric C Ford
PURPOSE: We propose a novel compensator-based IMRT system designed to provide a simple, reliable, and cost-effective adjunct technology, with the goal of expanding global access to advanced radiotherapy techniques. The system would employ easily-reusable tungsten bead compensators that operate independent of a gantry (e.g. mounted in a ring around the patient). Thereby the system can be retrofitted to existing linac and cobalt teletherapy units. This study explores the quality of treatment plans from the proposed system and the dependence on associated design parameters...
May 19, 2018: Medical Physics
https://www.readbyqxmd.com/read/29777587/epidermal-growth-factor-receptor-egfr-density-may-not-be-the-only-determinant-for-the-efficacy-of-egfr-targeted-photoimmunotherapy-in-human-head-and-neck-cancer-cell-lines
#3
Wei Peng, Henriette S de Bruijn, Eric Farrell, Mouldy Sioud, Vida Mashayekhi, Sabrina Oliveira, Go M van Dam, Jan L N Roodenburg, Max J H Witjes, Dominic J Robinson
OBJECTIVE: The aim of this study was to investigate the effects of targeted photoimmunotherapy (PIT) in vitro on cell lines with various expression levels of epidermal growth factor receptor (EGFR) using an anti-EGFR targeted conjugate composed of Cetuximab and IR700DX, phthalocyanine dye. MATERIALS AND METHODS: Relative EGFR density and cell binding assay was conducted in three human head & neck cancer cell lines (scc-U2, scc-U8, and OSC19) and one reference cell line A431...
May 19, 2018: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29776851/treatment-planning-dose-accuracy-improvement-in-the-presence-of-dental-implants
#4
Holly M Parenica, John R Ford, Panayiotis Mavroidis, Ying Li, Nikos Papanikolaou, Sotirios Stathakis
Streaking artifacts in computed tomography (CT) scans caused by metallic dental implants (MDIs) can lead to inaccuracies in dose calculations. This study quantifies and compares the effect of MDIs on dose distributions using the collapsed cone convolution superposition (CCCS) and Monte Carlo (MC) algorithms, with and without correcting for the density of the MDIs. Ion chamber measurements were taken to test the ability of the algorithms in Pinnacle3 and Monaco to calculate dose near high-Z materials. Nine previously treated patients with head and neck cancer were included in this study...
May 15, 2018: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/29776830/pharmacological-modulation-of-radiation-induced-oral-mucosal-complications
#5
S Bockel, A Vallard, A Lévy, S François, M Bourdis, C Le Gallic, D Riccobono, P Annede, M Drouet, Y Tao, P Blanchard, É Deutsch, N Magné, C Chargari
Radiation-induced mucositis is a common toxicity, especially in patients with head and neck cancers. Despite recent technological advances in radiation therapy, such as intensity-modulated radiotherapy, radiation-induced mucositis is still causing treatment disruptions, negatively affecting patients' long and short term quality of life, and impacting medical resources use with economic consequences. The objective of this article was to review the latest updates in the management of radiation-induced mucositis, with a focus on pharmaceutical strategies for the prevention or treatment of mucositis...
May 15, 2018: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/29776418/the-impact-of-contour-variation-on-tumour-control-probability-in-anal-cancer
#6
Michael P Jones, Jarad Martin, Kerwyn Foo, Patrick Estoesta, Lois Holloway, Michael Jameson
BACKGROUND: While intensity modulated radiotherapy (IMRT) has been widely adopted for the treatment of anal cancer (AC), the added contour complexity poses potential risks. This study investigates the impact of contour variation on tumour control probability (TCP) when using IMRT for AC. METHODS: Nine Australian centres contoured a single computed tomography dataset of a patient with AC. The same optimised template-based IMRT planning protocol was applied to each contour set to generate nine representative treatment plans and their corresponding dose volume histograms...
May 18, 2018: Radiation Oncology
https://www.readbyqxmd.com/read/29774993/-preliminary-study-on-the-expression-of-egfrv%C3%A2-and-cxcr4-in-head-and-neck-squamous-cell-carcinoma
#7
H D Zhang, S C Gong, Y Q Liu, S B He, Q X Zhang, M Y Si, Z K Yu
Objective: The aim of this study is to detect the expression of EGFRvⅢ and CXCR4 in HNSCC and to explore its possible mechanism. Method: We selected 60 cases of HNSCC from May 2013 to November 2016 in our hospital for surgical treatment, including 44 cases of laryngeal squamous cell carcinoma, 14 cases of hypopharyngeal squamous cell carcinoma, and 2 cases of nasal squamous cell carcinoma. pTNM staging according to AJCC 2010, Ⅲ stage 17 cases, Ⅳa stage 40 cases, and Ⅳb stage 3 cases; according to tumor differentiation degree: 13 cases of high differentiation, moderately differentiation in 31 cases, and 16 cases of low differentiated; primary tumor, positive lymph node metastasis as the experimental group, and 10 cases of adjacent tissues are taken as control (control group)...
June 5, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29774104/use-of-baseline-18f-fdg-pet-scan-to-identify-initial-sub-volumes-with-local-failure-after-concomitant-radio-chemotherapy-in-head-and-neck-cancer
#8
Floriane Legot, Florent Tixier, Minea Hadzic, Thomas Pinto-Leite, Christelle Gallais, Rémy Perdrisot, Xavier Dufour, Catherine Cheze-Le-Rest
Introduction: Head and neck squamous cell carcinoma (HNSCC) treated by radio-chemotherapy have a significant local recurrence rate. It has been previously suggested that 18F-FDG PET could identify the high uptake areas that can be potential targets for dose boosting. The purpose of this study was to compare the location of initial hypermetabolic regions on baseline scans with the metabolic relapse sites after radio-chemotherapy in HNSCC. Results: The initial functional tumor volume was significantly higher for patients with proven local recurrence or residual disease (23...
April 24, 2018: Oncotarget
https://www.readbyqxmd.com/read/29773816/experimental-investigation-of-radiobiology-in-head-and-neck-cancer-cell-lines-as-a-function-of-hpv-status-by-mtt-assay
#9
Paul Reid, Puthenparampil Wilson, Yanrui Li, Loredana G Marcu, Alexander H Staudacher, Michael P Brown, Eva Bezak
Head and neck cancers (HNCs) are aggressive epithelial tumours frequently treated using radiation. HNC biology shows distinctions dependent on the oncologic involvement of the human papilloma virus (HPV). Clinically, HPV positive HNCs respond better to radiotherapy but few in vitro data demonstrate radiobiological differences explaining differences in clinical outcomes. This pilot study examined radiobiological responses to irradiation and subsequent regeneration in two HNC cell lines (HPV positive and negative)...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29773124/otolaryngology-and-the-global-burden-of-disease
#10
REVIEW
James E Saunders, Zane Rankin, Kathryn Y Noonan
The Global Burden of Disease (GBD) project provides longitudinal analysis of the global burden of otolaryngologic diseases by measuring the all-cause mortality, years of life lost, the years of life lived with disability, and disability-adjusted life years. Hearing loss burden is assessed overall and as sequelae of other diseases, such as otitis media or meningitis. Using these measures, we can appreciate the high prevalence and disability related to hearing loss globally. Other otolaryngologic diseases that contribute to the GBD include otitis media, cleft lip and palate, head and neck cancer, facial trauma, and oral disorders...
June 2018: Otolaryngologic Clinics of North America
https://www.readbyqxmd.com/read/29772524/high-incidence-of-braf-v600-mutation-in-indian-patients-with-head-and-neck-cancer
#11
Ashna Gauthaman, Anbalagan Moorthy
In cancer cells,  BRAF  is frequently mutated at codon 600 (V600 ) leading to the replacement of valine amino acid with other amino acids. The current study was performed to assess the prevalence of  BRAF V600  mutation in Indian patients with head and neck squamous cell carcinoma (HNSCC). Among the patients, 27% were homozygous, and 71% were heterozygous for the mutation and only 2% showed a wild genotype. Since identification of  BRAF V600  mutation in cancer patients is used for selection of the therapeutic agents, this study shows that all Indian patients with HNSCCmust be screened for this mutation...
June 1, 2018: Frontiers in Bioscience (Elite Edition)
https://www.readbyqxmd.com/read/29771842/perceived-esthetic-outcomes-of-face-transplantation-a-survey-of-the-general-public
#12
Alessandra E Cabrera, Laura L Kimberly, Rami S Kantar, Elisa K Atamian, Amit K Manjunath, Lauren K Rangel, Michelle W McQuinn, J Rodrigo Diaz-Siso, Eduardo D Rodriguez
Facial transplantation (FT) has attracted the interest of individuals with facial disfigurement as a path to social reintegration. The perception among face transplant recipients and the reconstructive surgery community appears to be that superior functional and esthetic outcomes can be obtained with FT compared to autologous reconstruction (AR). Although lifelong immunosuppression adds well-known risks to FT, its benefits have proven difficult to quantify, especially because of its non-life-saving nature. Evidence that the general public perceives facial allograft recipients as less disfigured than AR patients may dramatically alter the currently accepted risk/benefit ratio of this novel procedure...
May 15, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29771197/emerging-insights-into-wnt-%C3%AE-catenin-signaling-in-head-and-neck-cancer
#13
K A Alamoud, M A Kukuruzinska
Head and neck cancer presents primarily as head and neck squamous cell carcinoma (HNSCC), a debilitating malignancy fraught with high morbidity, poor survival rates, and limited treatment options. Mounting evidence indicates that the Wnt/β-catenin signaling pathway plays important roles in the pathobiology of HNSCC. Wnt/β-catenin signaling affects multiple cellular processes that endow cancer cells with the ability to maintain and expand immature stem-like phenotypes, proliferate, extend survival, and acquire aggressive characteristics by adopting mesenchymal traits...
June 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/29771196/head-and-neck-cancer-in-the-new-era-of-precision-medicine
#14
J E Nör, J S Gutkind
No abstract text is available yet for this article.
June 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/29771169/associations-between-skin-rash-treatment-outcome-and-single-nucleotide-polymorphisms-in-head-and-neck-cancer-patients-receiving-the-egfr-inhibitor-zalutumumab-results-from-the-dahanca-19-trial
#15
Line Brøndum, Jan Alsner, Brita Singers Sørensen, Christian Maare, Jørgen Johansen, Hanne Primdahl, Jan Folkvard Evensen, Claus Andrup Kristensen, Lisbeth Juhler Andersen, Jens Overgaard, Jesper Grau Eriksen
PURPOSE: To study the associations between development of moderate to severe skin rash, clinical outcome, and single nucleotide polymorphisms (SNPs) in candidate genes in head and neck cancer patients from the DAHANCA 19 trial receiving the EGFR-inhibitor zalutumumab concurrently with radiation treatment. MATERIAL AND METHODS: 310 patients were included from the zalutumumab-arm of the DAHANCA 19 study. Nine SNPs in the candidate genes EGFR, EGF, AREG, FCGR2A, FCGR3A, and CCND1 were successfully determined in 294 patients...
May 17, 2018: Acta Oncologica
https://www.readbyqxmd.com/read/29771090/-the-role-of-%C3%A2-%C3%A2-f-fdg-pet-ct-for-detecting-nodal-metastases-in-cn0-head-neck-cancer-patients%C3%AF-a-meta-analysis
#16
X Y Li, C L Sun, X D Du
Objective: The aim of this study is to evaluate the accuracy of ¹⁸F-fluorodeoxyglucose PET/CT(¹⁸F-FDG PET/CT) for the diagnosis of cervical node metastases in cN0 head neck cancer patients. Method: An electronic database search(PubMed,EMBASE,Cochrane Library,WanFang and CNKI databases)was performed. Updated quality assessment of diagnostic accuracy studies-2(QUADAS-2) was used to assess study quality. Data analyses were performed with Meta-Disc1.4. Result: Eight studies were included in the present Meta-analysis...
May 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29770954/the-relationship-between-physical-impairments-quality-of-life-and-disability-of-the-neck-and-upper-limb-in-patients-following-neck-dissection
#17
Elise M Gane, Steven M McPhail, Anna L Hatton, Benedict J Panizza, Shaun P O'Leary
PURPOSE: The purpose of this study was to examine the relationship between physical impairments, quality of life and disability in patients following neck dissection, with consideration of patient and clinical characteristics. METHODS: Cross-sectional study of patients < 5 years after neck dissection for head and neck cancer. Quality of life and self-reported disability were measured with the Neck Dissection Impairment Index, Quick Disabilities of the Arm, Shoulder and Hand, and Neck Disability Index...
May 16, 2018: Journal of Cancer Survivorship: Research and Practice
https://www.readbyqxmd.com/read/29770876/reliability-and-validity-of-the-eating-assessment-tool-10-greek-adaptation-in-neurogenic-and-head-and-neck-cancer-related-oropharyngeal-dysphagia
#18
Athanasia Printza, Athanasios Kyrgidis, Elena Pavlidou, Stefanos Triaridis, Jannis Constantinidis
PURPOSE: Dysphagia is a symptom associated with significant morbidity and mortality, with profound impact on physical ability and quality of life. Many questionnaires have been used to assess patient-reported dysphagia, but issues related to developmental and measurement properties affect their wide applicability. The purpose of this study was to assess the validity and reliability of the Eating Assessment Tool-10 (EAT-10, Greek adaptation) in neurogenic and head and neck cancer-related dysphagia...
May 17, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29770611/the-changing-aetiology-of-head-and-neck-squamous-cell-cancer-a-tale-of-three-cancers
#19
Steven J Thomas, Chris M Penfold, Andrea Waylen, Andrew R Ness
Head and neck cancers are the sixth most common cancers worldwide and an important cause of ill health.(1) Each year about 9000 cases are reported in the UK.(2) Survival is poor and despite advances in treatment, has not improved until recently.(3) The majority of head and neck cancers are squamous cell carcinomas, affecting the larynx, oropharynx and oral cavity. The aetiology is changing and this has implications for prevention and treatment. Twenty years ago, tobacco and alcohol consumption were considered to be the established risk factors and it was estimated that these risk factors accounted for about 75% of cases...
May 16, 2018: Clinical Otolaryngology
https://www.readbyqxmd.com/read/29770536/combination-of-ifitm1-knockdown-and-radiotherapy-inhibits-the-growth-of-oral-cancer
#20
Jie Yang, Lei Li, Yan Xi, Ruimei Sun, Hu Wang, Yanxin Ren, Liufang Zhao, Xiaoli Wang, Xiaojiang Li
This research aimed to analyze the effect of IFITM1 on the radioresistance of oral neoplasm. IFITM1 emerged using multi-group heat map from GSE9716 analysis of GEO database as the relevant radioresistance gene. IFITM1 was screened by TCGA database before its expression was analyzed. IFITM1 expression was quantified by qRT-PCR and immunohistochemistry in 19 paired oral neoplasm cases. The effects of time and dose of radiation on IFITM1 expression level in CAL27 and TSCC1 cell lines was tested via qRT-PCR. Oral neoplasm cells were transfected with siRNA after radiotherapy to disturb IFITM1 expression...
May 16, 2018: Cancer Science
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