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Lung cancer radiation

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https://www.readbyqxmd.com/read/28937324/impact-of-2-staged-stereotactic-radiosurgery-for-treatment-of-brain-metastases-%C3%A2-2-cm
#1
Lilyana Angelov, Alireza M Mohammadi, Elizabeth E Bennett, Mahmoud Abbassy, Paul Elson, Samuel T Chao, Joshua S Montgomery, Ghaith Habboub, Michael A Vogelbaum, John H Suh, Erin S Murphy, Manmeet S Ahluwalia, Sean J Nagel, Gene H Barnett
OBJECTIVE Stereotactic radiosurgery (SRS) is the primary modality for treating brain metastases. However, effective radiosurgical control of brain metastases ≥ 2 cm in maximum diameter remains challenging and is associated with suboptimal local control (LC) rates of 37%-62% and an increased risk of treatment-related toxicity. To enhance LC while limiting adverse effects (AEs) of radiation in these patients, a dose-dense treatment regimen using 2-staged SRS (2-SSRS) was used. The objective of this study was to evaluate the efficacy and toxicity of this treatment strategy...
September 22, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28937271/assesment-of-radiation-induced-secondary-cancer-risk-in-the-brazilian-population-from-left-sided-breast-3d-crt-using-mcnpx
#2
Bruno Melo Mendes, Bruno Machado Trindade, Telma Cristina Ferreira Fonseca, Tarcisio Passos Ribeiro de Campos
OBJECTIVE: The aim of this work was to simulate a 6MV conventional breast 3D conformational radiotherapy (3D-CRT) with physical wedges (50Gy/25#) in the left breast, calculate the mean absorbed dose in the body organs using robust models and computational tools and estimate the secondary cancer-incidence risk to the Brazilian population. METHODS: The VW female phantom was used in the simulations. PTV was defined in the left breast. The 6MV parallel-opposed fields breast-RT protocol was simulated with MCNPx code...
September 20, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28936924/expression-of-cross-tolerance-to-a-wide-range-of-conditions-in-a-human-lung-cancer-cell-line-after-adaptation-to-nitric-oxide
#3
Zane Deliu, Timothy Tamas, Juel Chowdhury, Madeeha Aqil, Maaly Bassiony, James A Radosevich
Previously, we have shown that A549, a human lung adenocarcinoma, can be adapted to nitric oxide (NO(●)). NO(●) is a nitrogen-based free radical that is synthesized by a family of enzymes known as nitric oxide synthases. NO(●) has been shown to be overexpressed in patient populations of different cancers. In addition, it has been observed that patients who express high levels of nitric oxide synthases tend to have poorer clinical outcomes than those with low levels of expression. The original cell line A549 (parent) and the adapted A549-HNO (high nitric oxide) cell line serve as a useful model system to investigate the role of NO(●) in tumor progression and prognosis...
September 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28936454/lung-cancer-screening-with-low-dose-ct-and-radiation-harm-from-prediction-models-to-cancer-incidence-data
#4
EDITORIAL
Mario Mascalchi, Lapo Sali
No abstract text is available yet for this article.
September 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28935774/immunotherapy-a-new-and-old-approach-to-treatment-of-soft-tissue-and-bone-sarcomas
#5
REVIEW
Michael J Nathenson, Anthony P Conley, Edward Sausville
Soft tissue and bone sarcomas are a rare and heterogeneous form of cancer. With standard of care treatment options including surgery, radiation, and chemotherapy, the long-term survival is still low for high-risk soft tissue sarcoma patients. New treatment strategies are needed. Immunotherapy offers a new potential treatment paradigm with great promise. Immunotherapy of soft tissue sarcomas dates back to Dr. Coley's first use of toxins in the late 1800s. A variety of strategies of immunotherapy have been tried in soft tissue and bone sarcomas, including various vaccines and cytokines, with limited success...
September 21, 2017: Oncologist
https://www.readbyqxmd.com/read/28935017/-role-of-hippo-signaling-pathway-in-lung-cancer
#6
Yuechao Liu, Ying Xing, Li Cai
Lung cancer is the leading cause of cancer related mortality in the world, with more than 1 million deaths per year, accounting for about one fifth of all cancer deaths worldwide. Over the past years, lung cancer treatment has been based on surgery, radiation therapy, chemotherapy, targeted therapies, and immunotherapy, but the improvement is not very perfect. Therefore, it has become clear that additional therapeutic strategies are urgently required to provide an improved survival benefit for patients. In recent years, Hippo signaling pathway has become a popular direction in the field of cancer research...
September 20, 2017: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/28934968/comparison-of-volumetric-modulated-arc-therapy-using-simultaneous-integrated-boosts-sib-vmat-of-45%C3%A2-gy-55%C3%A2-gy-in-25-fractions-with-conventional-radiotherapy-in-preoperative-chemoradiation-for-rectal-cancers-a-propensity-score-case-matched-analysis
#7
Hideomi Yamashita, Soichiro Ishihara, Hiroaki Nozawa, Kazushige Kawai, Tomomichi Kiyomatsu, Kae Okuma, Osamu Abe, Toshiaki Watanabe, Keiichi Nakagawa
BACKGROUND AND PURPOSE: The aim of this retrospective study was to compare volumetric-modulated arc therapy using simultaneous integrated boosts (SIB-VMAT) of 45 Gy/55 Gy in 25 fractions with three-dimensional conformal radiotherapy (3D-CRT) in preoperative chemoradiation for rectal cancers. METHODS AND MATERIALS: In the propensity score-matching analysis of 1:2, we selected 60 patients from the SIB-VMAT group and 120patients from the 3D-CRT group matched pairings out of 145 patients between 2005 and 2015...
September 21, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28934231/principal-component-analysis-identifies-patterns-of-cytokine-expression-in-non-small-cell-lung-cancer-patients-undergoing-definitive-radiation-therapy
#8
Susannah G Ellsworth, Bryan M Rabatic, Jie Chen, Jing Zhao, Jeffrey Campbell, Weili Wang, Wenhu Pi, Paul Stanton, Martha Matuszak, Shruti Jolly, Amy Miller, Feng-Ming Kong
BACKGROUND/PURPOSE: Radiation treatment (RT) stimulates the release of many immunohumoral factors, complicating the identification of clinically significant cytokine expression patterns. This study used principal component analysis (PCA) to analyze cytokines in non-small cell lung cancer (NSCLC) patients undergoing RT and explore differences in changes after hypofractionated stereotactic body radiation therapy (SBRT) and conventionally fractionated RT (CFRT) without or with chemotherapy...
2017: PloS One
https://www.readbyqxmd.com/read/28929083/emerging-therapies-for-stage-iii-non-small-cell-lung-cancer-stereotactic-body-radiation-therapy-and-immunotherapy
#9
REVIEW
Sameera S Kumar, Kristin A Higgins, Ronald C McGarry
The current standard of care for locally advanced non-small cell lung cancer (NSCLC) includes radiation, chemotherapy, and surgery in certain individualized cases. In unresectable NSCLC, chemoradiation has been the standard of care for the past three decades. Local and distant failure remains high in this group of patients, so dose escalation has been studied in both single institution and national clinical trials. Though initial studies showed a benefit to dose escalation, phase III studies examining dose escalation using standard fractionation or hyperfractionation have failed to show a benefit...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28928841/lung-cancer-requires-multidisciplinary-treatment-to-improve-patient-survival-a-case-report
#10
Aldo Pezzuto, Fabrizio Terzo, Maria Laura Graziani, Alberto Ricci, Pierdonato Bruno, Salvatore Mariotta
The present study reports two cases of lung cancer with the involvement of the pleura. The diagnosis of adenocarcinoma with epidermal growth factor receptor (EGFR) mutation was made following repeated thoracentesis with cytology of pleural fluid and thoracoscopy with pleural biopsies. Talc pleurodesis was successfully performed in both cases subsequent to diagnosis. Following talc pleurodesis, the first patient (62 years old; male; non-smoker) underwent 3 cycles of cisplatin/vinorelbine chemotherapy, with a poor response...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28919394/concomitant-chemotherapy-and-radiotherapy-with-sbrt-boost-for-unresectable-stage-iii-non-small-cell-lung-cancer-a-phase-i-study
#11
Kristin A Higgins, Rathi N Pillai, Zhengjia Chen, Sibo Tian, Chao Zhang, Pretesh Patel, Suchita Pakkala, Jay Shelton, Seth D Force, Felix G Fernandez, Conor E Steuer, Taofeek K Owonikoko, Suresh S Ramalingam, Jeffrey D Bradley, Walter J Curran
PURPOSE: Stereotactic Body Radiation Therapy (SBRT) is now the standard of care in medically inoperable stage I non-small cell lung cancer, yielding high rates of local control. It is unknown if SBRT can be safely utilized in the locally advanced NSCLC setting. This multi-institution phase I study evaluated the safety of 44 Gy conventionally fractionated thoracic radiation with concurrent chemotherapy plus a dose escalated SBRT boost to both the primary tumor and involved mediastinal lymph nodes...
September 12, 2017: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/28919249/dosimetric-predictors-for-acute-esophagitis-during-radiation-therapy-for-lung-cancer-results-of-a-large-statewide-observational-study
#12
Peter Paximadis, Matthew Schipper, Martha Matuszak, Mary Feng, Shruti Jolly, Thomas Boike, Inga Grills, Larry Kestin, Benjamin Movsas, Kent Griffith, Gregory Gustafson, Jean Moran, Teamour Nurushev, Jeffrey Radawski, Lori Pierce, James Hayman
PURPOSE: The purpose of this study is to identify dosimetric variables that best predict for acute esophagitis in patients treated for locally advanced non-small cell lung cancer in a prospectively accrued statewide consortium. METHODS AND MATERIALS: Patients receiving definitive radiation therapy for stage II-III non-small cell lung cancer within the Michigan Radiation Oncology Quality Consortium were included in the analysis. Dose-volume histogram data were analyzed to determine absolute volumes (cc) receiving doses from 10 to 60 Gy (V10, V20, V30, V40, V50, and V60), as well as maximum dose to 2 cc (D2cc), mean dose (MD), and generalized equivalent uniform dose (gEUD)...
July 19, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28919004/stereotactic-body-radiotherapy-for-lung-cancer-patients-with-idiopathic-interstitial-pneumonias
#13
Yuichiro Tsurugai, Atsuya Takeda, Naoko Sanuki, Tatsuji Enomoto, Takeshi Kaneko, Yu Hara, Tomikazu Mizuno, Noriyuki Saeki, Yousuke Aoki, Yohei Oku, Takeshi Akiba, Etsuo Kunieda
PURPOSE: To compare toxicity and survival after stereotactic body radiotherapy (SBRT) between lung cancer patients with or without idiopathic interstitial pneumonias (IIPs), and to investigate the potential value of SBRT for the patients. METHODS: Among lung cancer patients receiving SBRT between 2005 and 2016, we evaluated those treated with a total dose of 40-60Gy in five fractions with curative intent who either were staged as cT1-4N0M0 or experienced postoperative isolated local recurrence...
September 14, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28918206/lung-cancer-randomized-controlled-trials-should-compare-stereotactic-body-radiation-therapy-with-observation-not-surgery
#14
EDITORIAL
Raja M Flores
No abstract text is available yet for this article.
September 1, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28917711/crocodiles-and-alligators-antiamoebic-and-antitumor-compounds-of-crocodiles
#15
Ruqaiyyah Siddiqui, Shareni Jeyamogan, Salwa Mansoor Ali, Fatima Abbas, K A Sagathevan, Naveed Ahmed Khan
Crocodiles exist in unsanitary environments, feed on rotten meat, are often exposed to heavy metals such as arsenic, cadmium, cobalt, chromium, mercury, nickel, lead, selenium, tolerate high levels of radiation, and are amid the very few species to survive the catastrophic Cretaceous-Tertiary extinction event, nonetheless they can live for up to a 100 years. Moreover, as they live in unhygienic conditions, they regularly come across pathogens. Logically, we postulate that crocodiles have established mechanisms to defend themselves from noxious agents as well as protecting themselves from pathogens...
September 13, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28917258/stereotactic-body-radiotherapy-for-early-stage-lung-cancer-historical-developments-and-future-strategies
#16
Kevin L M Chua, Iris Sin, Kam W Fong, Melvin L K Chua, Hiroshi Onishi
The application of radiosurgery dose escalation extra-cranially in a moving target, surrounded by critical normal tissue, presents unique dosimetric and clinical challenges. Building on a strong foundation of robust technological advancements and well-planned clinical studies, lung stereotactic body radiotherapy (SBRT) has firmly established its place in the management of early stage non-small cell lung cancer (NSCLC). Nevertheless, favourable outcomes and long-term survival still evade a substantial proportion of patients, especially for central and larger peripheral lung tumours...
September 2017: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/28917254/stereotactic-radiotherapy-in-oligometastatic-cancer
#17
Thomas A C Kennedy, Mark T Corkum, Alexander V Louie
Oligometastatic cancer describes a disease state somewhere between localized and metastatic cancer. Proposed definitions of oligometastatic disease have typically used a cut-off of five or fewer sites of disease. Treatment of oligometastatic disease should have the goal of long-term local control, and in selected cases, disease remission. While several retrospective cohorts argue for surgical excision of limited metastases (metastasectomy) as the preferred treatment option for several clinical indications, limited randomized data exists for treating oligometastases...
September 2017: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/28916937/the-conversion-of-exposures-due-to-radon-into-the-effective-dose-the-epidemiological-approach
#18
T R Beck
The risks and dose conversion coefficients for residential and occupational exposures due to radon were determined with applying the epidemiological risk models to ICRP representative populations. The dose conversion coefficient for residential radon was estimated with a value of 1.6 mSv year(-1) per 100 Bq m(-3) (3.6 mSv per WLM), which is significantly lower than the corresponding value derived from the biokinetic and dosimetric models. The dose conversion coefficient for occupational exposures with applying the risk models for miners was estimated with a value of 14 mSv per WLM, which is in good accordance with the results of the dosimetric models...
September 15, 2017: Radiation and Environmental Biophysics
https://www.readbyqxmd.com/read/28916844/left-sided-breast-cancer-and-risks-of-secondary-lung-cancer-and-ischemic-heart-disease-effects-of-modern-radiotherapy-techniques
#19
Stefanie Corradini, Hendrik Ballhausen, Helmut Weingandt, Philipp Freislederer, Stephan Schönecker, Maximilian Niyazi, Cristoforo Simonetto, Markus Eidemüller, Ute Ganswindt, Claus Belka
PURPOSE: Modern breast cancer radiotherapy techniques, such as respiratory-gated radiotherapy in deep-inspiration breath-hold (DIBH) or volumetric-modulated arc radiotherapy (VMAT) have been shown to reduce the high dose exposure of the heart in left-sided breast cancer. The aim of the present study was to comparatively estimate the excess relative and absolute risks of radiation-induced secondary lung cancer and ischemic heart disease for different modern radiotherapy techniques. METHODS: Four different treatment plans were generated for ten computed tomography data sets of patients with left-sided breast cancer, using either three-dimensional conformal radiotherapy (3D-CRT) or VMAT, in free-breathing (FB) or DIBH...
September 15, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28916217/stereotactic-body-radiation-therapy-versus-video-assisted-thoracoscopic-surgery-in-stage-i-lung-cancer-honesty-in-the-face-of-uncertainty
#20
EDITORIAL
Biniam Kidane
No abstract text is available yet for this article.
September 1, 2017: Journal of Thoracic and Cardiovascular Surgery
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