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Radiation oncology radiotherapy

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https://www.readbyqxmd.com/read/28223720/is-endoscopic-ultrasound-examination-necessary-in-the-management-of-esophageal-cancer
#1
REVIEW
Tomas DaVee, Jaffer A Ajani, Jeffrey H Lee
Despite substantial efforts at early diagnosis, accurate staging and advanced treatments, esophageal cancer (EC) continues to be an ominous disease worldwide. Risk factors for esophageal carcinomas include obesity, gastroesophageal reflux disease, hard-alcohol use and tobacco smoking. Five-year survival rates have improved from 5% to 20% since the 1970s, the result of advances in diagnostic staging and treatment. As the most sensitive test for locoregional staging of EC, endoscopic ultrasound (EUS) influences the development of an optimal oncologic treatment plan for a significant minority of patients with early cancers, which appropriately balances the risks and benefits of surgery, chemotherapy and radiation...
February 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28217177/an-overview-of-current-practice-in-external-beam-radiation-oncology-with-consideration-to-potential-benefits-and-challenges-for-nanotechnology
#2
REVIEW
Raymond B King, Stephen J McMahon, Wendy B Hyland, Suneil Jain, Karl T Butterworth, Kevin M Prise, Alan R Hounsell, Conor K McGarry
Over the past two decades, there has been a significant evolution in the technologies and techniques employed within the radiation oncology environment. Over the same period, extensive research into the use of nanotechnology in medicine has highlighted a range of potential benefits to its incorporation into clinical radiation oncology. This short communication describes key tools and techniques that have recently been introduced into specific stages of a patient's radiotherapy pathway, including diagnosis, external beam treatment and subsequent follow-up...
2017: Cancer Nanotechnology
https://www.readbyqxmd.com/read/28216622/effects-of-gene-polymorphisms-in-the-endoplasmic-reticulum-stress-pathway-on-clinical-outcomes-of-chemoradiotherapy-in-chinese-patients-with-nasopharyngeal-carcinoma
#3
Xiao-Bin Guo, Wan-le Ma, Li-Juan Liu, Yu-Ling Huang, Jing Wang, Li-Hua Huang, Xiang-Dong Peng, Ji-Ye Yin, Jin-Gao Li, Shao-Jun Chen, Guo-Ping Yang, Hui Wang, Cheng-Xian Guo
There is considerable inter-individual variabil¬ity in chemoradiotherapy responses in nasopharyngeal carcinoma (NPC) patients receiv¬ing the same or similar treatment protocols. In this study we evaluated the association between the gene polymorphisms in endoplasmic reticulum (ER) stress pathway and chemoradiation responses in Chinese NPC patients. A total of 150 patients with histopathologically conformed NPC and treated with concurrent chemoradiotherapy were enrolled. Genotypes in ER stress pathway genes, including VCP (valosin-containing protein) rs2074549, HSP90B1 rs17034943, CANX (calnexin) rs7566, HSPA5 [heat shock protein family A (Hsp70) member 5] rs430397, CALCR (calcitonin receptor) rs2528521, and XBP1 (X-box binding protein 1) rs2269577 were analyzed by Sequenom MassARRAY system...
February 20, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28207586/open-partial-laryngectomy-after-failure-of-chemo-radiation-indications-oncologic-and-functional-outcomes
#4
Geoffrey Mortuaire, Dominique Chevalier, François Mouawad
PURPOSE OF REVIEW: Early-stage squamous cell carcinoma of the larynx can be successfully treated with radiotherapy or surgery (transoral or open approaches). Oncologic results are comparable while functional results may be different according to the volume of resection. In some countries radiotherapy is often preferred as primary treatment. In case of recurrence, surgical salvage is the only option. Careful examination, endoscopic assessment, computed tomography or magnetic resonance imaging are necessary to assess superficial and deep extensions into the larynx, including cartilage framework and to restage the tumor...
February 15, 2017: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/28205026/common-strategic-research-agenda-for-radiation-protection-in-medicine
#5
(no author information available yet)
: Reflecting the change in funding strategies for European research projects, and the goal to jointly improve medical radiation protection through sustainable research efforts, five medical societies involved in the application of ionising radiation (European Association of Nuclear Medicine, EANM; European Federation of Organizations for Medical Physics. EFOMP; European Federation of Radiographer Societies, EFRS; European Society of Radiology, ESR; European Society for Radiotherapy and Oncology, ESTRO) have identified research areas of common interest and developed this first edition of the Common Strategic Research Agenda (SRA) for medical radiation protection...
February 15, 2017: Insights Into Imaging
https://www.readbyqxmd.com/read/28203163/is-the-deep-inspiration-breath-hold-technique-superior-to-the-free-breathing-technique-in-cardiac-and-lung-sparing-while-treating-both-left-sided-post-mastectomy-chest-wall-and-supraclavicular-regions
#6
Anupama Darapu, Rajesh Balakrishnan, Patricia Sebastian, Mohamathu Rafic Kather Hussain, Paul Ravindran, Subhashini John
AIMS: To evaluate the efficacy of the deep inspirational breath-hold (DIBH) technique and its dosimetric advantages over the free breathing (FB) technique in cardiac (heart and left anterior descending artery [LAD]) and ipsilateral lung sparing in left-sided post-mastectomy field-in-field conformal radiotherapy. DIBH is highly reproducible, and this study aims to find out its dosimetric benefits over FB. MATERIALS AND METHODS: Nineteen left-sided mastectomy patients were immobilized using breast boards with both arms positioned above the head...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28199751/impact-of-polymorphisms-in-angiogenesis-related-genes-on-clinical-outcomes-of-radiotherapy-in-patients-with-nasopharyngeal-carcinoma
#7
Wan-Le Ma, Rong Liu, Li-Hua Huang, Chan Zou, Jie Huang, Jing Wang, Shao-Jun Chen, Xiang-Guang Meng, Jing-Ke Yang, Han Li, Guo-Ping Yang, Cheng-Xian Guo
PURPOSE: To assess the relationship between gene polymorphism in angiogenesis-related genes and radiation responses in nasopharyngeal carcinoma (NPC) patients. METHODS: The genotypes of 180 NPC patients were analyzed by Sequenom MassARRAY. The Response Evaluation Criteria in Solid Tumors were used for assessing efficacies. And The criteria of Radiation Therapy Oncology Group or European Organization for Research & Treatment of Cancer were utilized for evaluating acute toxic reactions in response to radiation...
February 15, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28190762/optimal-fractionation-of-preoperative-radiotherapy-and-timing-to-surgery-for-rectal-cancer-stockholm-iii-a-multicentre-randomised-non-blinded-phase-3-non-inferiority-trial
#8
Johan Erlandsson, Torbjörn Holm, David Pettersson, Åke Berglund, Björn Cedermark, Calin Radu, Hemming Johansson, Mikael Machado, Fredrik Hjern, Olof Hallböök, Ingvar Syk, Bengt Glimelius, Anna Martling
BACKGROUND: Radiotherapy reduces the risk of local recurrence in rectal cancer. However, the optimal radiotherapy fractionation and interval between radiotherapy and surgery is still under debate. We aimed to study recurrence in patients randomised between three different radiotherapy regimens with respect to fractionation and time to surgery. METHODS: In this multicentre, randomised, non-blinded, phase 3, non-inferiority trial (Stockholm III), all patients with a biopsy-proven adenocarcinoma of the rectum, without signs of non-resectability or distant metastases, without severe cardiovascular comorbidity, and planned for an abdominal resection from 18 Swedish hospitals were eligible...
February 9, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28188088/high-dose-neural-stem-cell-radiation-may-not-improve-survival-in-glioblastoma
#9
R Achari, M Arunsingh, R K Badgami, A Saha, S Chatterjee, R K Shrimali, I Mallick, B Arun
AIMS: To evaluate the effect of radiotherapy dose-volume parameters of neural stem cell (NSC) compartment on progression-free survival (PFS) and overall survival after post-resection chemoradiation in newly diagnosed glioblastoma. MATERIALS AND METHODS: Sixty-one patients with unifocal glioblastoma were included. Ipsilateral (NSC_Ipsi), contralateral (NSC_Contra) and combined NSC (NSC_Combined) were contoured on radiotherapy planning computerised tomography datasets...
February 8, 2017: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/28181815/onsite-versus-offsite-radiation-treatment-of-malignant-spinal-cord-compression-lessons-from-a-safety-net-health-system
#10
Albert C Chen, Mark D Bonnen, Henry Mok
OBJECTIVE: Metastatic spinal cord compression (MSCC) is an oncologic emergency that often warrants emergent treatment, but it is unclear if radiation treatment can be optimally managed from an offsite radiotherapy facility. METHODS: Patient charts from consecutive MSCC patients that were treated with radiotherapy alone either at an onsite hospital radiation department (from 2008 to 2012) or an offsite radiotherapy center (2012-2015) were reviewed. Patients' clinical parameters were compared across groups with either the Chi-squared test or Fisher's exact test, while survival curves were compared with the log-rank test...
February 9, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28180110/assessing-tumor-oxygenation-for-predicting-outcome-in-radiation-oncology-a-review-of-studies-correlating-tumor-hypoxic-status-and-outcome-in-the-preclinical-and-clinical-settings
#11
REVIEW
Florence Colliez, Bernard Gallez, Bénédicte F Jordan
Tumor hypoxia is recognized as a limiting factor for the efficacy of radiotherapy, because it enhances tumor radioresistance. It is strongly suggested that assessing tumor oxygenation could help to predict the outcome of cancer patients undergoing radiation therapy. Strategies have also been developed to alleviate tumor hypoxia in order to radiosensitize tumors. In addition, oxygen mapping is critically needed for intensity modulated radiation therapy (IMRT), in which the most hypoxic regions require higher radiation doses and the most oxygenated regions require lower radiation doses...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28177326/supracricoid-laryngectomy-for-recurrent-laryngeal-cancer-after-chemoradiotherapy-a-systematic-review-and-meta-analysis
#12
C A Leone, P Capasso, D Topazio, G Russo
Residual or recurrent laryngeal cancer after irradiation is a difficult clinical problem with a rate that ranges from 13% to 36% of cases. Supracricoid laryngectomy (SCL) with cricohyoidopexy (CHP) or cricohyoidoepiglottopexy (CHEP) provide reliable oncological and functional results for selected primary and recurrent patients with glottic and supraglottic carcinomas. We conducted a systematic review and meta-analysis to assess the oncological and functional outcomes of patients treated with open partial horizontal laryngectomy types IIa and IIb (CHEP, CHP) in terms of the recurrence of squamocellular cancer of the larynx after radiotherapy failure...
December 2016: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/28168937/outcomes-of-spatially-fractionated-radiotherapy-grid-for-bulky-soft-tissue-sarcomas-in-a-large-animal-model
#13
Michael W Nolan, Tracy L Gieger, Alexander A Karakashian, Mariana N Nikolova-Karakashian, Lysa P Posner, Donald M Roback, Judith N Rivera, Sha Chang
GRID directs alternating regions of high- and low-dose radiation at tumors. A large animal model mimicking the geometries of human treatments is needed to complement existing rodent systems (eg, microbeam) and clarify the physical and biological attributes of GRID. A pilot study was undertaken in pet dogs with spontaneous soft tissue sarcomas to characterize responses to GRID. Subjects were treated with either 20 Gy (3 dogs) or 25 Gy (3 dogs), delivered using 6 MV X-rays and a commercial GRID collimator. Acute toxicity and tumor responses were assessed 2, 4, and 6 weeks later...
January 1, 2017: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/28161553/lower-incidence-of-esophagitis-in-the-elderly-undergoing-definitive-radiation-therapy-for-lung-cancer
#14
Payal D Soni, Philip S Boonstra, Matthew J Schipper, Latifa Bazzi, Robert T Dess, Martha M Matuszak, Feng-Ming Kong, James A Hayman, Randall K Ten Haken, Theodore S Lawrence, Gregory P Kalemkerian, Shruti Jolly
INTRODUCTION: Most patients with lung cancer are elderly and poorly represented in randomized clinical trials. They are often undertreated because of concerns about their ability to tolerate aggressive treatment. We tested the hypothesis that elderly patients undergoing definitive lung radiation might tolerate treatment differently than younger patients. METHODS: A total of 125 patients who underwent definitive lung radiotherapy were identified from a prospective institutional database (University of Michigan cohort)...
March 2017: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/28156678/patterns-of-symptom-control-and-palliative-care-focused-original-research-articles-in-major-radiation-oncology-journals
#15
Tracy A Balboni, Edward Chow
: 216 Background: National oncology and palliative care organizations recommend greater incorporation of palliative care in clinical care and research in advanced cancer to improve care quality. In radiation oncology, palliative oncology care represents approximately 30-40% of treatment courses. Given the frequency of palliative care in radiation oncology and recommendations for greater research at this intersection, we sought to determine the prevalence and patterns of publication of symptom control and palliative care focused original research articles in two prominent radiation oncology journals from 2004-2015...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28156673/palliative-whole-brain-radiotherapy-predictors-of-prescribing-5-versus-10-fractions
#16
Sarah Baker, Kim Paulson, Brock J Debenham, Sunita Ghosh, David L Ma, Fleur Huang, Karen P Chu, Diane Severin, John Amanie, Tirath Nijjar, Samir Patel, Ericka Wiebe, Brita Lavender Danielson, Bronwen LeGuerrier, Alysa M Fairchild
: 219 Background: The optimal dose for palliative whole brain radiotherapy (WBRT) continues to be debated. Common regimens include 20 Gy in five and 30 Gy in 10 fractions. We aimed to identify factors associated with WBRT dose schedules, hypothesizing that clinical prediction of survival (CPS) would influence prescribing practice. METHODS: Demographic and clinicopathologic data were collected for consecutive patients with brain metastases receiving WBRT through a dedicated palliative radiation oncology clinic...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28156606/role-of-emergent-palliative-radiation-therapy-in-the-care-of-patients-with-cancer
#17
Michael Zhang, Steve E Braunstein, Shannon E Fogh
: 201 Background: Radiation therapy (RT) provides an important role in the palliative care of patients with cancer. For patients with metastatic spinal cord compression not amenable to surgery, the value of timely palliative RT is well established; however, the value of the rapid application of RT for other chief complaints is less clear. The importance of palliative care service (PCS) involvement in patients treated with RT is becoming increasingly recognized and rapidly instituted RT could compromise this involvement...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28156519/thirty-day-mortality-rate-in-oncology-patients-treated-with-palliative-radiotherapy
#18
Tomas Dvorak, Christopher G Morris, Anamaria R Yeung
: 172 Background: Thirty-day mortality is a well-established metric for surgical specialties, but there are limited data available for 30-day mortality after radiation therapy. Our aim was to specifically identify the 30-day mortality of patients treated with palliative radiotherapy for the purposes of establishing a baseline to improve upon. METHODS: We retrospectively reviewed the medical records of all patients treated with external-beam radiotherapy (EBRT) from January 1, 2012, to December 31, 2012, who died within 30 days of their last delivered radiation fraction...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28156509/palliative-care-and-palliative-radiotherapy-education-in-radiation-oncology-a-survey-of-us-radiation-oncology-program-directors
#19
Lauren Colbert, Joshua Adam Jones, Gabrielle Kane, Margarita Racsa-Alamgir, Neha Vapiwala, Kavita Vyas Dharmarajan
: 178 Background: To assess the state of palliative care education curricula in radiation oncology residency programs in the United States. METHODS: We surveyed 90 program directors of radiation oncology residency programs in the United States from September 2015 to November 2015. An electronic survey on palliative care education during residency was sent to all program directors. The survey consisted of questions on perceived relevance of palliative care in radiation oncology residency, formal didactics on domains of palliative care, effective teaching formats for palliative care education, and perceived barriers for integrating palliative care into the residency curriculum...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28156446/acute-pain-management-in-radiation-oncology-quality-of-care-and-the-impact-of-an-integrated-palliative-oncology-service
#20
Tracy A Balboni, Steve E Braunstein, Shannon E Fogh, Wendy Anderson, Steve Pantilat, Allison Taylor, Alexander Spektor, Monica Shalini Krishnan, Daphne A Haas-Kogan, Lauren Michelle Hertan
: 195 Background: Radiotherapy (RT) effectively palliates bone metastases, but relief may take weeks, frequently necessitating acute pain management (APM). NCCN Guidelines for Adult Cancer Pain (V2.2015) recommend initiation/titration of analgesics for patients with pain scale value (PSV) ≥ 4. We sought to evaluate how often symptomatic patients have analgesic regimens assessed and intervened upon at radiation oncology (RO) consult for bone metastases, and the impact of a dedicated palliative RO service on APM...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
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