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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
#1
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/29773414/hypofractionated-whole-breast-irradiation-with-or-without-boost-in-elderly-patients-clinical-evaluation-of-an-italian-experience
#2
Maria Carmen De Santis, Francesca Bonfantini, Francesca Di Salvo, Alba Fiorentino, Michela Dispinzieri, Mariangela Caputo, Serena Di Cosimo, Gabriella Mariani, Massimiliano Gennaro, Vito Cosentino, Milena Sant, Emanuele Pignoli, Riccardo Valdagni, Laura Lozza
PURPOSE: To examine local control, disease-free survival (DFS), and toxicity in elderly (≥ 65 years) breast cancer patients treated with hypofractionated radiotherapy (hypo-RT) with or without a boost to the tumor bed. PATIENTS AND METHODS: The study was conducted on 752 patients treated from April 2009 to February 2017. Patients received 42.4 Gy in 16 daily fractions (2.65 Gy per fraction). A boost was only administered in cases of grade 3 primary tumor and close or positive margins...
April 22, 2018: Clinical Breast Cancer
https://www.readbyqxmd.com/read/29771796/a-population-based-cohort-analysis-of-chemoradiation-versus-radiation-alone-for-definitive-treatment-of-stage-i-anal-cancer-in-older-patients
#3
Michael Buckstein, Yotam Arens, Juan Wisnivesky, Michael Gaisa, Stephen Goldstone, Keith Sigel
BACKGROUND: Although the benefit of chemoradiation over radiation therapy alone has been shown in randomized trials for stage II to III squamous cell of the anus, this benefit is not clear for patients with stage I cancer. Nevertheless, most societal recommendations endorse chemoradiation for patients with stage I squamous cell carcinoma of the anus despite the lack of proven benefit and potential increase in toxicity. OBJECTIVE: The purpose of this study was to determine whether outcomes are improved with the addition of chemotherapy versus radiation alone for stage I squamous cell carcinoma of the anus...
May 15, 2018: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/29764588/-correlations-between-ape1-ref-1-icam-1-and-il-17a-levels-in-serum-and-radiation-pneumonitis-for-local-advanced-non-small-cell-lung-cancer-patients
#4
Leiming Guo, Gaofeng Ding, Wencai Xu, Hong Ge, Yue Jiang, Yufei Lu
BACKGROUND: The main manifestations of radiation pneumonitis are injury of alveolar epithelial and endothelial cells, abnormal expression of cytokines, abnormal proliferation of fibroblasts and synthesis of fibrous matrix. The occurrence of radiation pneumonitis is associated with multiplecytokine level abnormality. These cytokines can also be used as bio-markers to predict the occurrence of radiation pneumonitis. This study was to evaluate the correlation between the change of apurinic/apyrimidinic endonuclease 1/redox factor-1 (Ape1/Ref-1), intercellular adhesion molecules 1 (ICAM-1) and interleukin-17A (IL-17A) before and after radiotherapy and radiation pneumonitis for local advanced non-small cell lung cancer (NSCLC) patients with concurrent chemoradiotherapy...
May 20, 2018: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/29764186/patterns-of-symptom-control-and-palliative-care-focused-original-research-articles-in-the-international-journal-of-radiation-oncology-biology-physics-and-the-radiotherapy-and-oncology-journal-2005-2014
#5
Diana D Shi, Julia DiGiovanni, Sonia Skamene, Sarah Noveroske Philbrick, Yanbing Wang, Elizabeth A Barnes, Edward Chow, Adam Sullivan, Tracy A Balboni
BACKGROUND: A significant portion of radiation treatment (30-40%) is delivered with palliative intent. Given the frequency of palliative care (PC) in radiation oncology, we determined the patterns of research focusing on symptom control and palliative care (SCPC) in two prominent radiation oncology journals from 2005-2014. METHODS: Original research manuscripts published from 2005-2014 in the International Journal of Radiation Oncology *Biology* Physics (Red Journal) and the Radiotherapy and Oncology Journal (Green Journal) were reviewed to categorize articles as PC and/or SCPC...
April 2018: Annals of Palliative Medicine
https://www.readbyqxmd.com/read/29761228/patterns-of-care-analysis-for-head-neck-cancer-of-unknown-primary-site-a-survey-inside-the-german-society-of-radiation-oncology-degro
#6
Jens Müller von der Grün, Dimitra Bon, Claus Rödel, Panagiotis Balermpas
BACKGROUND: Due to the absence of randomized trials, the optimal management for squamous cell cancer of unknown primary in the head and neck region (SCCHN CUP) remains controversial. Current strategies are based on retrospective studies, clinical experience, and institutional policies. METHODS: An anonymous questionnaire with a total of 24 questions was created and distributed by the use of an online version (Google Forms®, Google, Mountain View, CA, USA) as well as a printout version as equivalent option...
May 14, 2018: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/29750673/quality-of-life-perception-cognitive-function-and-psychological-status-in-a-real-world-population-of-glioblastoma-patients-treated-with-radiotherapy-and-temozolomide-a-single-center-prospective-study
#7
Giuseppe Lombardi, Eleonora Bergo, Paola Del Bianco, Luisa Bellu, Ardi Pambuku, Mario Caccese, Leonardo Trentin, Vittorina Zagonel
BACKGROUND: Health-related quality of life (HRQoL), cognitive function, and psychological status represent an important focus during the treatment of glioblastoma patients. Nevertheless, few randomized, prospective clinical trials have analyzed these factors, and very little is known in the real-clinical world. We evaluated these characteristics in glioblastoma patients treated with standard first-line therapy outside clinical trials. PATIENTS AND METHODS: In total, 111 newly, histologically diagnosed glioblastoma patients treated at our oncology center with radiotherapy and temozolomide were prospectively enrolled...
May 10, 2018: American Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29749129/plasma-cell-free-dna-as-a-predictive-marker-after-radiotherapy-for-hepatocellular-carcinoma
#8
Sangjoon Park, Eun Jung Lee, Chai Hong Rim, Jinsil Seong
PURPOSE: Cell-free DNA (cfDNA) is gaining attention as a novel biomarker for oncologic outcomes. We investigated the clinical significance of cfDNA in hepatocellular carcinoma (HCC) patients treated with radiotherapy (RT). MATERIALS AND METHODS: Fifty-five patients with HCC who received RT were recruited from two prospective study cohorts: one cohort of 34 patients who underwent conventionally fractionated RT and a second of 21 patients treated with stereotactic body radiation therapy...
June 2018: Yonsei Medical Journal
https://www.readbyqxmd.com/read/29734694/hearing-loss-in-adult-survivors-of-childhood-cancer-treated-with-radiotherapy
#9
Amber Khan, Amy Budnick, Dana Barnea, Darren R Feldman, Kevin C Oeffinger, Emily S Tonorezos
The ototoxic effects of radiotherapy have been poorly characterized. We examined adult survivors of childhood cancer who were treated with radiotherapy, which included the head, before the age of 22 years and between 1952 and 2016. Those who received platinum chemotherapy were excluded. Demographic, diagnosis, and treatment outcomes were captured. Audiograms were graded using the Chang and International Society of Paediatric Oncology ototoxicity (SIOP) scales. Among 276 patients with a history of radiation to sites that included the brain, orbit, nasopharynx, and total body irradiation, the median age at treatment was 10...
May 4, 2018: Children
https://www.readbyqxmd.com/read/29731938/treatment-of-a-patient-with-merkel-cell-skin-carcinoma-using-radiation-therapy-a-case-report
#10
Andrej Petrov, Slavica Kraleva, Katerina Kubelka-Sabit, Deva Petrova
BACKGROUND: Merkel cell carcinoma (MCC) is a rare, very aggressive tumour. The pathogenesis remains unclear, but UV radiation, immunosuppression, and the presence of Merkel cell polyomavirus in the tumour genome appear to have a key role. Merkel cell carcinoma is a highly aggressive tumour that often has a lethal end. CAS REPORT: A patient at 93 years of age comes for an examination by a dermatologist due to a rapidly growing nodular tumour growth in the forehead area...
April 15, 2018: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29728842/patients-characteristics-informing-practice-improving-individualized-nursing-care-in-the-radiation-oncology-setting
#11
Pauline M Rose
PURPOSE: A large number of patients attend for radiotherapy daily. Primary nurses in the study settings aim to individualize care for their patients. The individual characteristics of patients may determine their perceptions of nursing care, and provide guidance in tailoring their care. This study aimed to assess patients' personal characteristics on their perceptions of individualized care (IC) provided by nurses during a course of radiotherapy, and to determine predictor variables that may inform nursing practice...
May 4, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29728233/multifunctional-chitosan-capped-gold-nanoparticles-for-enhanced-cancer-chemo-radiotherapy-an-invitro-study
#12
Mohamed Mahmoud Fathy, Fayrouz S Mohamed, NihalSaad Elbialy, Wael M Elshemey
Over the last decade, chemo-radiotherapy represented a well-established paradigm for cancer treatment. Developing new strategies to promote the therapeutic efficacy while reducing toxic side effects of chemo-radiotherapy is a main research objective in cancer therapy. A promising new oncological strategy for enhancing chemo-radiotherapy against cancer involves the utilization of multifunctional nanoparticles (nanocarriers and radiosensitizers). In this work, Chitosan-Capped Gold Nanoparticles (CS-GNPs) were synthesized and loaded with an anticancer agent, Doxorubicin (CS-GNPs-DOX)...
April 2018: Physica Medica: PM
https://www.readbyqxmd.com/read/29727314/the-university-of-florida-department-of-radiation-oncology-guidelines-for-treatment-of-differentiated-thyroid-cancer-with-i-131-or-external-beam-radiotherapy
#13
Robert J Amdur, Roi Dagan
The purpose of this paper is to summarize the University of Florida Department of Radiation Oncology guidelines for treatment of differentiated thyroid cancer with I-131 or external-beam radiotherapy. This article is not meant to compete with the many excellent book chapters and consensus guidelines that present comprehensive discussions of treatment options. This is a streamlined, "How we do it?" reference without substantial discussion of background or supporting data. To serve as a treatment reference, the great majority of the information is presented in topic-specific tables...
May 4, 2018: American Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29726389/combining-precision-radiotherapy-with-molecular-targeting-and-immunomodulatory-agents-a-guideline-by-the-american-society-for-radiation-oncology
#14
REVIEW
Robert G Bristow, Brian Alexander, Michael Baumann, Scott V Bratman, J Martin Brown, Kevin Camphausen, Peter Choyke, Deborah Citrin, Joseph N Contessa, Adam Dicker, David G Kirsch, Mechthild Krause, Quynh-Thu Le, Michael Milosevic, Zachary S Morris, Jann N Sarkaria, Paul M Sondel, Phuoc T Tran, George D Wilson, Henning Willers, Rebecca K S Wong, Paul M Harari
The practice of radiation oncology is primarily based on precise technical delivery of highly conformal, image-guided external beam radiotherapy or brachytherapy. However, systematic research efforts are being made to facilitate individualised radiation dose prescriptions on the basis of gene-expressssion profiles that reflect the radiosensitivity of tumour and normal tissue. This advance in precision radiotherapy should complement those benefits made in precision cancer medicine that use molecularly targeted agents and immunotherapies...
May 2018: Lancet Oncology
https://www.readbyqxmd.com/read/29726118/gold-nanoparticles-in-radiotherapy-and-recent-progress-in-nanobrachytherapy
#15
REVIEW
Myriam Laprise-Pelletier, Teresa Simão, Marc-André Fortin
Over the last few decades, gold nanoparticles (GNPs) have emerged as "radiosensitizers" in oncology. Radiosensitizers are additives that can enhance the effects of radiation on biological tissues treated with radiotherapy. The interaction of photons with GNPs leads to the emission of low-energy and short-range secondary electrons, which in turn increase the dose deposited in tissues. In this context, GNPs are the subject of intensive theoretical and experimental studies aiming at optimizing the parameters leading to greater dose enhancement and highest therapeutic effect...
May 4, 2018: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29722340/role-of-recursive-partitioning-analysis-and-graded-prognostic-assessment-on-identifying-non-small-cell-lung-cancer-patients-with-brain-metastases-who-may-benefit-from-postradiation-systemic-therapy
#16
Shuai Liu, Peng Chen, Yan-Wei Liu, Xue-Nan Gu, Xiao-Guang Qiu, Bo Li
Background: The role of postradiation systemic therapy in non-small cell lung cancer (NSCLC) patients with brain metastasis (BM) was controversial. Thus, we explored the role of Radiation Therapy Oncology Group recursive partitioning analysis (RTOG-RPA) and graded prognostic assessment (GPA) in identifying population who may benefit from postradiation systemic therapy. Methods: The clinical data of NSCLC patients with documented BM from August 2007 to April 2015 of two hospitals were studied retrospectively...
May 20, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29719815/machine-learning-in-radiation-oncology-opportunities-requirements-and-needs
#17
Mary Feng, Gilmer Valdes, Nayha Dixit, Timothy D Solberg
Machine learning (ML) has the potential to revolutionize the field of radiation oncology, but there is much work to be done. In this article, we approach the radiotherapy process from a workflow perspective, identifying specific areas where a data-centric approach using ML could improve the quality and efficiency of patient care. We highlight areas where ML has already been used, and identify areas where we should invest additional resources. We believe that this article can serve as a guide for both clinicians and researchers to start discussing issues that must be addressed in a timely manner...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29714662/safety-of-concurrent-adjuvant-radiotherapy-and-chemotherapy-for-locally-advanced-soft-tissue-sarcoma
#18
Daniela Greto, Mauro Loi, Calogero Saieva, Cristina Muntoni, Camilla Delli Paoli, Carlotta Becherini, Cinzia Ciabatti, Marco Perna, Domenico Campanacci, Francesca Terziani, Giovanni Beltrami, Guido Scoccianti, Pierluigi Bonomo, Icro Meattini, Isacco Desideri, Gabriele Simontacchi, Monica Mangoni, Lorenzo Livi
INTRODUCTION: This retrospective study analyzes the safety and feasibility of concurrent chemoradiotherapy (CRT) in adjuvant treatment of soft tissue sarcoma (STS). METHODS: A total of 158 patients with STS were retrospectively analyzed. Anthracycline-based computed tomography was performed in high-risk patients. Acute radiotherapy toxicity and chemotherapy-related toxicity were assessed according to the Common Terminology Criteria for Adverse Events 4.0; late radiotherapy toxicity was recorded according to Radiation Therapy Oncology Group/European Organization for Research and Treatment of Cancer criteria...
April 1, 2018: Tumori
https://www.readbyqxmd.com/read/29714086/a-dosimetric-evaluation-on-applying-rtog-based-and-ct-mri-based-delineation-methods-to-brachial-plexus-in-radiotherapy-of-nasopharyngeal-carcinoma-treated-with-helical-tomotherapy
#19
Chi-Him Li, Vincent Wc Wu, George Chiu
OBJECTIVE: In radiotherapy of nasopharyngeal carcinoma (NPC) patients, the brachial plexus (BP) situating at both sides of the neck are often irradiated to high dose. This study was to evaluate different BP delineation methods and analyse the dosimetric consequences when applying BP dose constraints in radiotherapy planning of NPC. METHODS: 15 NPC cases treated radically with helical tomotherapy were recruited. Apart from the original treatment plan (Plan A), two new plans (Plan B & C) with additional BP dose constraints were computed using the same planning computed tomography (CT) images, structures and planning parameters...
May 1, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29705501/quality-of-radiotherapy-services-in-post-soviet-countries-an-iaea-survey
#20
Eduardo Rosenblatt, Elena Fidarova, Sunita Ghosh, Eduardo Zubizarreta, Olga Unterkirhere, Natalia Semikoz, Valery Sinaika, Viktor Kim, Nerses Karamyan, Isa Isayev, Kamal Akbarov, Darejan Lomidze, Oksana Bondareva, Piotr Tuzlucov, Manzura Zardodkhonova, Sergey Tkachev, Marina Kislyakova, Jamshid Alimov, Tetiana Pidlubna, Michael Barton, William Mackillop
BACKGROUND: The quality of radiotherapy services in post-Soviet countries has not yet been studied following a formal methodology. The IAEA conducted a survey using two sets of validated radiation oncology quality indicators (ROIs). METHODS: Eleven post-Soviet countries were assessed. A coordinator was designated for each country and acted as the liaison between the country and the IAEA. The methodology was a one-time cross-sectional survey using a 58-question tool in Russian...
April 25, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
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