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https://www.readbyqxmd.com/read/28325250/radiotherapy-in-the-age-of-cancer-immunology-current-concepts-and-future-developments
#1
REVIEW
Mauro Loi, Isacco Desideri, Daniela Greto, Monica Mangoni, Mariangela Sottili, Icro Meattini, Carlotta Becherini, Francesca Terziani, Camilla Delli Paoli, Emanuela Olmetto, Pierluigi Bonomo, Lorenzo Livi
Major advances in the knowledge of cancer biology and its interactions with tumor immune environment led to the emergence, in the last five years of new immunotherapy-based treatment strategies in cancer patients. At the same time, improvement in radiation technique and progress in radiobiology allowed in the last decade to expand the applications of radiotherapy in a growing number of settings. At present, there are strong theoretical basis to propose immune-enhanced radiation therapy that may represent in the future a new paradigm of treatment, combining the intrinsic power of radiotherapy to elicit a specific, systemic, tumor-directed immune response with modern highly conformal and precise dose delivery, in order to maximize response at the major site of disease and obtain durable disease control...
April 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28325244/perspectives-on-patient-access-to-radiation-oncology-services-in-south-america
#2
REVIEW
Beatriz Amendola, Aldo Quarneti, Arthur Accioly Rosa, Gustavo Sarria, Marco Amendola
Cancer represents a fast-growing challenge worldwide, and is being recognized as an emerging and critical issue in low- and middle-income countries, such most of South America. This subcontinent is unique for its geography, culture, and ethnical diversity. Most of its countries have large expanses of jungle and desert where underserved population groups including indigenous (native Indians), represent a challenge for cancer care. Many indigent patients have no access to preventive care nor early diagnosis. This results in late presentations with advanced disease and frequently incurable cancer...
April 2017: Seminars in Radiation Oncology
https://www.readbyqxmd.com/read/28322154/mechanisms-and-drug-targets-for-pancreatic-cancer-chemoprevention
#3
Deepanshi Dhar, Komal Raina, Rajesh Agarwal
Pancreatic cancer management remains a major challenge to society. Poor prognosis results in dismal survival rates and quality of life for pancreatic cancer patients post chemo/radiation therapies. Although progress has been made in drug development for chemotherapeutics targeting pancreatic cancer, accompanying issues of resistance to these drugs renders the treatment futile. Emerging area of cancer chemoprevention is gaining importance with natural/dietary compounds serving as novel agents with strong anticancer properties; these are pleiotropic agents targeting multiple pathways with minimal toxicities in the surrounding normal tissue...
March 20, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28301689/the-early-adoption-of-intensity-modulated-radiotherapy-and-stereotactic-body-radiation-treatment-among-older-medicare-beneficiaries-with-prostate-cancer
#4
Bruce L Jacobs, Jonathan G Yabes, Samia H Lopa, Dwight E Heron, Chung-Chou H Chang, Florian R Schroeck, Justin E Bekelman, Jeremy M Kahn, Joel B Nelson, Amber E Barnato
BACKGROUND: Several new prostate cancer treatments have emerged since 2000, including 2 radiotherapies with similar efficacy at the time of their introduction: intensity-modulated radiotherapy (IMRT) and stereotactic body radiation therapy (SBRT). The objectives of this study were to compare their early adoption patterns and identify factors associated with their use. METHODS: By using the Surveillance, Epidemiology, and End Results (SEER)-Medicare database, patients who received radiation therapy during the 5 years after IMRT introduction (2001-2005) and the 5 years after SBRT introduction (2007-2011) were identified...
March 16, 2017: Cancer
https://www.readbyqxmd.com/read/28299759/optimizing-the-benefit-of-cns-radiation-therapy-in-the-pediatric-population-part-2-novel-methods-of-radiation-delivery
#5
REVIEW
Lindsay S Rowe, Andra V Krauze, Holly Ning, Kevin A Camphausen, Aradhana Kaushal
Newer approaches in the field of radiation therapy have raised the bar in the treatment of central nervous system (CNS) malignancies, with recognized advances that have aimed to increase the therapeutic index by improving conformality of the radiation dose to the planned target volume. Beyond these advances, the continued evolution of more effective systems for delivery of radiation to the CNS may offer further benefit not only to adults but also to pediatric patients, a cohort of the population that may be more sensitive to the long-term effects of radiation...
March 15, 2017: Oncology (Williston Park, NY)
https://www.readbyqxmd.com/read/28299754/optimizing-the-benefit-of-cns-radiation-therapy-in-the-pediatric-population-part-1-understanding-and-managing-acute-and-late-toxicities
#6
REVIEW
Lindsay S Rowe, Andra V Krauze, Holly Ning, Kevin A Camphausen, Aradhana Kaushal
Radiation therapy continues to be a key component in the management of pediatric malignancies. Increasing the likelihood of cure while minimizing late treatment toxicity in these young patients remains the primary goal. Within the realm of central nervous system neoplasms, efforts to further improve the efficacy of radiation therapy continue, while balancing risks of damage to uninvolved tissue. Radiation therapy can result in second malignancies, as well as cerebrovascular, neurotoxic, neurocognitive, endocrine, psychosocial, and quality-of-life effects...
March 15, 2017: Oncology (Williston Park, NY)
https://www.readbyqxmd.com/read/28297441/comprehensive-dosimetric-planning-comparison-for-early-stage-non-small-cell-lung-cancer-with-sabr-fixed-beam-imrt-versus-vmat-versus-tomotherapy
#7
Ilma Xhaferllari, Omar El-Sherif, Stewart Gaede
Volumetric-modulated arc therapy (VMAT) is emerging as a leading technology in treating early-stage, non-small cell lung cancer (NSCLC) with stereotactic ablative radiotherapy (SABR). However, two other modalities capable of delivering intensity-modulated radiation therapy (IMRT) include fixed-beam and helical TomoTherapy (HT). This study aims to provide an extensive dosimetric comparison among these various IMRT techniques for treating early-stage NSCLC with SABR. Ten early-stage NSCLC patients were retrospectively optimized using three fixed-beam techniques via nine to eleven beams (high and low modulation step-and-shoot (SS), and sliding window (SW)), two VMAT techniques via two partial arcs (SmartArc (SA) and RapidArc (RA)), and three HT techniques via three different fan beam widths (1 cm, 2...
September 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28293526/bilateral-lymphatic-spread-of-metastatic-basal-cell-carcinoma
#8
Richard L Sleightholm, James R Willcockson, Duncan C Watley, Frederick L Durden, Jason M Foster
Herein, we report a case of a patient with an abnormal skin lesion that remained unchecked by medical professionals for approximately 20 years. Upon physical examination in the emergency department for a fractured hip, an infiltrative mass was incidentally discovered. The neoplasm was noted to have progressed from an eraser-sized mass to a 3.5-cm invasive lesion. Initial surgical intervention was believed to have been successful in removal, as margins were clear with the exception of 1 indeterminate segment...
December 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28291059/defense-mechanisms-and-utilization-in-cancer-patients-undergoing-radiation-therapy-a-pilot-study
#9
John H Porcerelli, Phebe Cramer, Daniel J Porcerelli, V Elayne Arterbery
A group of 49 patients who had been diagnosed with cancer during the preceding year and who were receiving radiation therapy were assessed for their use of defense mechanisms, as well as for their level of psychological distress. In addition, their utilization of medical services was determined. It was predicted that the use of services that were under the patients' control-namely, requesting extra outpatient visits and making trips to the emergency department-would be related to the patients' use of defense mechanisms, whereas a treatment option not under the patients' control-overnight hospitalization based on physicians' assessment of condition-would not be related to defense use...
March 13, 2017: Journal of Nervous and Mental Disease
https://www.readbyqxmd.com/read/28287344/ewing-s-sarcoma%C3%A2-of-the-cranial-vault-a-case-report
#10
Jihene Feki, Zeineb Guermazi, Brahim Kammoun, Afef Khanfir, Nabil Toumi, Tahiya Boudawara, Zaher Boudawara, Jamel Daoud, Mounir Frikha
Ewing's sarcoma is a malignant tumor that mainly affects young patients. It represents 10% of primary malignant tumors of the bone and 3% of malignant tumors of the child. Cranial localization is extremely rare representing less than 1% of all the localizations. We report a case of a 10-year-old girl who presented with an intracranial hypertension syndrome with left parietal mass of progressive installation. The X-ray skull showed a lytic lesion with irregular margins involving the left parietal bone. Brain magnetic resonance imaging revealed extensive parietal bone destruction involving both the inner and outer tables...
March 13, 2017: Acta Clinica Belgica
https://www.readbyqxmd.com/read/28274491/stereotactic-body-radiotherapy-for-oligo-metastatic-liver-disease-influence-of-pre-treatment-chemotherapy-and-histology-on-local-tumor-control
#11
R J Klement, M Guckenberger, H Alheid, M Allgäuer, G Becker, O Blanck, J Boda-Heggemann, T Brunner, M Duma, S Gerum, D Habermehl, G Hildebrandt, V Lewitzki, C Ostheimer, A Papachristofilou, C Petersen, T Schneider, R Semrau, S Wachter, N Andratschke
INTRODUCTION: Stereotactic body radiation therapy (SBRT) is applied in the oligometastatic setting to treat liver metastases. However, factors influencing tumor control probability (TCP) other than radiation dose have not been thoroughly investigated. Here we set out to investigate such factors with a focus on the influence of histology and chemotherapy prior to SBRT using a large multi-center database from the German Society of Radiation Oncology. METHODS: 452 SBRT treatments in 363 patients were analyzed after collection of patient, tumor and treatment data in a multi-center database...
March 5, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28271281/the-role-of-radiation-in-treating-glioblastoma-here-to-stay
#12
REVIEW
Christopher D Corso, Ranjit S Bindra, Minesh P Mehta
Despite numerous efforts over the past several decades, few therapeutic breakthroughs in the treatment of GBM have been realized, and even these have yielded only incrementally modest gains. Radiotherapy remains a crucial component in the management of this disease. In this review, the historical basis for inclusion of radiotherapy as part of the therapeutic regimen for GBM is examined. Additionally, an overview of the evidence supporting the modern role of radiotherapy is provided along with a discussion of standard and emerging combined modality therapies...
March 7, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28257912/warfarin-associated-venous-limb-gangrene-in-cancer-related-dvt-case-report
#13
Vladimir Cojocari, Dumitru Casian, Eugen Gutu
INTRODUCTION: Warfarin anticoagulation of oncologic patients with DVT may paradoxically progress to phlegmasia cerulea dolens and limb gangrene, due to cancer-associated disseminated intravascular coagulation. This case report, written in line with the SCARE criteria, endorses venous thrombectomy in selected patients to attempt limb salvage. A young woman's warfarin associated acute ileofemoral phlegmasia that developed over cervical cancer radiation therapy induced DVT, was successfully resolved by clot removal...
January 23, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28256151/the-emerging-potential-of-magnetic-resonance-imaging-in-personalizing-radiotherapy-for-head-and-neck-cancer-an-oncologist-s-perspective
#14
Kee H Wong, Rafal Panek, Shreerang A Bhide, Christopher M Nutting, Kevin J Harrington, Katie L Newbold
Head and neck cancer (HNC) is a challenging tumour site for radiotherapy delivery owing to its complex anatomy and proximity to organs at risk (OARs) such as the spinal cord and optic apparatus. Despite significant advances in radiotherapy planning techniques, radiation-induced morbidities remain substantial. Further improvement would require high-quality imaging and tailored radiotherapy based on intratreatment response. For these reasons, the use of MRI in radiotherapy planning for HNC is rapidly gaining popularity...
March 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28249796/biological-determinants-of-radioresistance-and-their-remediation-in-pancreatic-cancer
#15
REVIEW
Parthasarathy Seshacharyulu, Michael J Baine, Joshua J Souchek, Melanie Menning, Sukhwinder Kaur, Ying Yan, Michel M Ouellette, Maneesh Jain, Chi Lin, Surinder K Batra
Despite recent advances in radiotherapy, a majority of patients diagnosed with pancreatic cancer (PC) do not achieve objective responses due to the existence of intrinsic and acquired radioresistance. Identification of molecular mechanisms that compromise the efficacy of radiation therapy and targeting these pathways is paramount for improving radiation response in PC patients. In this review, we have summarized molecular mechanisms associated with the radio-resistant phenotype of PC. Briefly, we discuss the reversible and irreversible biological consequences of radiotherapy, such as DNA damage and DNA repair, mechanisms of cancer cell survival and radiation-induced apoptosis following radiotherapy...
February 27, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28240522/coping-strategies-and-experiences-in-women-with-a-primary-breast-cancer-diagnosis
#16
Sepideh Hajian, Esmat Mehrabi, Masoomeh Simbar, Mohammad Houshyari
Background: Women with breast cancer experience problems in multiple aspects of their lives, but applying effective strategies can result in enhancing their quality of life and their psychosocial adaptation to the disease. However, there is little information about the strategies that women use to cope with complications associated with their experiences following a breast cancer diagnosis. Objectives: The aim of this study was to explore the experience of coping behavior and the main strategies that women use in dealing with a breast cancer diagnosis...
January 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28236928/endovascular-treatment-of-carotid-blowout-syndrome
#17
REVIEW
Kamila M Bond, Waleed Brinjikji, Mohammed H Murad, Harry J Cloft, Giuseppe Lanzino
BACKGROUND: Carotid blowout syndrome (CBS) is a life-threatening complication of head and neck cancer and radiation therapy. Endovascular techniques have emerged as preferable alternatives to surgical ligation for treatment of CBS. We performed a systematic review and meta-analysis to study periprocedural complications and outcomes of CBS patients treated with coil embolization and covered stents. METHODS: A comprehensive literature search identified studies that reported outcomes of endovascular treatment of CBS published from 2000 to April 2016...
March 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28229399/neurological-complications-of-the-leukemias-across-the-ages
#18
REVIEW
Stephanie Berg, Sucha Nand
PURPOSE OF REVIEW: Acute and chronic leukemias are heterogeneous diseases and can affect any part of the body upon initial discovery. Understanding the sequela of systemic involvement is key for proper diagnosis and treatment. RECENT FINDINGS: Over the decades, new research has emerged regarding neurological complications of the myeloid or lymphoid leukemias. Central nervous system involvement usually confers a poor prognosis and requires emergent treatment. Standard of care still involves systemic therapy, intrathecal administration of chemotherapeutic agents, and cranial radiation...
February 2017: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/28220804/impact-of-symptomatic-skeletal-events-on-health-care-resource-utilization-and-quality-of-life-among-patients-with-castration-resistant-prostate-cancer-and-bone-metastases
#19
R McKay, B Haider, M S Duh, A Valderrama, M Nakabayashi, M Fiorillo, L Ristovska, L Wen, P Kantoff
BACKGROUND: Data regarding the impact of symptomatic skeletal events (SSEs) on health economics and patient-reported outcomes in men with castration-resistant prostate cancer (CRPC) and bone metastases from a clinical setting are lacking. Hence, this study aimed to quantify the effects of SSEs on health-care resource utilization (HRU), health-related quality of life (HRQoL) and pain in men with CRPC metastasized to bone. METHODS: This cohort study included men with CRPC and bone metastasis treated at a tertiary center during December 1996-July 2015...
February 21, 2017: Prostate Cancer and Prostatic Diseases
https://www.readbyqxmd.com/read/28211218/the-integration-of-mri-in-radiation-therapy-collaboration-of-radiographers-and-radiation-therapists
#20
Robba Rai, Shivani Kumar, Vikneswary Batumalai, Doaa Elwadia, Lucy Ohanessian, Ewa Juresic, Lynette Cassapi, Shalini K Vinod, Lois Holloway, Paul J Keall, Gary P Liney
The increased utilisation of magnetic resonance imaging (MRI) in radiation therapy (RT) has led to the implementation of MRI simulators for RT treatment planning and influenced the development of MRI-guided treatment systems. There is extensive literature on the advantages of MRI for tumour volume and organ-at-risk delineation compared to computed tomography. MRI provides both anatomical and functional information for RT treatment planning (RTP) as well as quantitative information to assess tumour response for adaptive treatment...
March 2017: Journal of Medical Radiation Sciences
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