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https://www.readbyqxmd.com/read/29764968/how-to-prevent-and-manage-radiation-induced-coronary-artery-disease
#1
REVIEW
Jason R Cuomo, Sean P Javaheri, Gyanendra K Sharma, Deepak Kapoor, Adam E Berman, Neal L Weintraub
Radiation-induced coronary heart disease (RICHD) is the second most common cause of morbidity and mortality in patients treated with radiotherapy for breast cancer, Hodgkin's lymphoma and other prevalent mediastinal malignancies. The risk of RICHD increases with radiation dose. Exposed patients may present decades after treatment with manifestations ranging from asymptomatic myocardial perfusion defects to ostial, triple-vessel disease and sudden cardiac death. RICHD is insidious, with a long latency and a tendency to remain silent late into the disease course...
May 15, 2018: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29761316/impact-of-visual-feedback-on-dose-volume-histograms-for-organs-at-risk-in-postoperative-radiotherapy-with-deep-inspiration-breath-holding-for-patients-treated-with-breast-conserving-therapy-a-planning-study
#2
Keiko Nemoto Murofushi, Masaru Nakajima, Tetsuya Tomita, Minako Sumi, Yasuo Yoshioka, Masahiko Oguchi, Hideyuki Sakurai
BACKGROUND: We evaluated the effectiveness of visual feedback (VF) on radiotherapy with deep inspiration breath-holding (DIBH), and reviewed the dose for organs at risk (OARs). METHODS: Respiratory motions during DIBH for 15 s were monitored during planning computed tomography (CT)-scanning and simulation for 40 patients after breast-conserving surgery from June 2007 to February 2008. For 22 of 40 patients, a goggle-type liquid crystal display monitor was used for VF...
May 14, 2018: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/29749075/evaluation-of-a-mixed-beam-therapy-for-post-mastectomy-breast-cancer-patients-bolus-electron-conformal-therapy-combined-with-intensity-modulated-photon-radiotherapy-and-volumetric-modulated-photon-arc-therapy
#3
Rui Zhang, David Heins, Mary Sanders, Beibei Guo, Kenneth Hogstrom
PURPOSE: The purpose of this study was to assess the potential benefits and limitations of a mixed beam therapy, which combined bolus electron conformal therapy (BECT) with intensity modulated photon radiotherapy (IMRT) and volumetric modulated photon arc therapy (VMAT), for left-sided post-mastectomy breast cancer patients. METHODS: Mixed beam treatment plans were produced for nine post-mastectomy radiotherapy (PMRT) patients previously treated at our clinic with VMAT alone...
May 10, 2018: Medical Physics
https://www.readbyqxmd.com/read/29748015/association-between-radiation-heart-dosimetric-parameters-myocardial-infarct-and-overall-survival-in-stage-3-non-small-cell-lung-cancer-treated-with-definitive-thoracic-radiotherapy
#4
Chia Ching Lee, Huili Zheng, Yu Yang Soon, Ling Li Foo, Wee Yao Koh, Cheng Nang Leong, Balamurugan Vellayappan, Jeremy Chee Seong Tey, Ivan Weng Keong Tham
OBJECTIVES: The aim of this retrospective observational study is to assess the association between various radiation heart dosimetric parameters (RHDPs) and acute myocardial infarct (AMI) and overall survival (OS) outcomes in stage III non-small cell lung cancer (NSCLC) treated with definitive radiotherapy with or without chemotherapy. MATERIALS AND METHODS: We identified eligible patients treated at two institutions from 2007 to 2014. We linked their electronic medical records to the national AMI and death registries...
June 2018: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/29740663/-estimating-the-long-term-risks-of-breast-cancer-radiotherapy-evidence-for-lungs-and-heart
#5
Marc D Piroth
No abstract text is available yet for this article.
May 8, 2018: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/29736620/cardioprotective-effect-of-zingerone-against-oxidative-stress-inflammation-and-apoptosis-induced-by-cisplatin-or-gamma-radiation-in-rats
#6
Ahmed F Soliman, Lobna M Anees, Doaa M Ibrahim
Despite their clinical benefits in cancer treatment, the deleterious effects on heart following chemo/radiotherapy are of increasing importance. Zingerone, a natural polyphenol, possesses multiple biological activities, such as antioxidant and anti-inflammatory. Thus, the current study was designed to assess the potential cardioprotective effects of zingerone against cisplatin or γ-radiation. Zingerone was given by intragastric intubation (25 mg/kg) daily for three successive weeks prior to the induction of cardiotoxicity using a single dose of cisplatin (20 mg/kg, i...
May 7, 2018: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/29735190/potential-morbidity-reduction-with-proton-radiation-therapy-for-breast-cancer
#7
REVIEW
Lior Z Braunstein, Oren Cahlon
Proton radiotherapy confers significant dosimetric advantages in the treatment of malignancies that arise adjacent to critical radiosensitive structures. To date, these advantages have been most prominent in the treatment of pediatric and central nervous system malignancies, although emerging data support the use of protons among other anatomical sites in which radiotherapy plays an important role. With advances in the overall treatment paradigm for breast cancer, most patients with localized disease now exhibit long-term disease control and, consequently, may manifest the late toxicities of aggressive treatment...
April 2018: Seminars in Radiation Oncology
https://www.readbyqxmd.com/read/29730730/risk-of-ischemic-heart-disease-after-radiotherapy-for-ductal-carcinoma-in-situ
#8
C Wadsten, A-K Wennstig, H Garmo, Greger Nilsson, Carl Blomqvist, Lars Holmberg, Irma Fredriksson, F Wärnberg, M Sund
PURPOSE: The use of adjuvant radiotherapy (RT) in the management of ductal carcinoma in situ (DCIS) is increasing. Left-sided breast irradiation may involve exposure of the heart to ionising radiation, increasing the risk of ischemic heart disease (IHD). We examined the incidence of IHD in a population-based cohort of women with DCIS. METHODS: The Breast Cancer DataBase Sweden (BCBase) cohort includes women registered with invasive and in situ breast cancers 1992-2012 and age-matched women without a history of breast cancer...
May 5, 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29729845/plan-optimization-for-mediastinal-radiotherapy-estimation-of-coronary-arteries-motion-with-ecg-gated-cardiac-imaging-and-creation-of-compensatory-expansion-margins
#9
Mario Levis, Viola De Luca, Christian Fiandra, Simona Veglia, Antonella Fava, Marco Gatti, Mauro Giorgi, Sara Bartoncini, Federica Cadoni, Domenica Garabello, Riccardo Ragona, Andrea Riccardo Filippi, Umberto Ricardi
BACKGROUND AND PURPOSE: Inadvertent heart and coronary arteries (CA) irradiation may increase the risk of coronary artery disease (CAD) in patients receiving thoracic irradiation. To date, the entity of cardiac-related CA displacement and the possible margins to be used for planning organs at risk volume (PRV) have been poorly described. Aim of this study was to quantify CA displacement and to estimate PRV through the use of ECG-gated computed tomography (CT) scans. MATERIAL AND METHODS: Eight patients received an ECG-gated intravenous contrast enhanced CT for non-cancer related reasons...
May 2, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29728221/dosimetric-advantages-afforded-by-a-new-irradiation-technique-dynamic-wavearc-used-for-accelerated-partial-breast-irradiation
#10
Yuka Ono, Michio Yoshimura, Kimiko Hirata, Tomohiro Ono, Hideaki Hirashima, Nobutaka Mukumoto, Mitsuhiro Nakamura, Minoru Inoue, Masahiro Hiraoka, Takashi Mizowaki
PURPOSE: To identify dosimetric advantages of the novel Dynamic WaveArc (DWA) technique for accelerated partial breast irradiation (APBI), compared with non-coplanar three-dimensional conformal radiotherapy (nc3D-CRT) and coplanar tangential volumetric modulated arc therapy (tVMAT) with dual arcs of 45-65°. METHODS: Vero4DRT enables DWA by continuous gantry rotation and O-ring skewing with movement of the multi-leaf collimator. We compared the dose distributions of DWA, nc3D-CRT and tVMAT in 24 consecutive left-sided breast cancer patients treated with APBI (38...
April 2018: Physica Medica: PM
https://www.readbyqxmd.com/read/29724584/stereotactic-body-radiation-therapy-for-heart-base-tumors-in-six-dogs
#11
L M Magestro, T L Gieger, M W Nolan
INTRODUCTION: Heart-base tumors are increasingly treated with radiotherapy, yet safety and efficacy are incompletely understood. This case series describes outcomes after stereotactic body radiation therapy (SBRT) for presumed chemodectoma. ANIMALS: Six pet dogs. METHODS: A retrospective study was performed, including dogs with a clinical diagnosis of chemodectoma and treatment with three-fraction SBRT (30 Gy total). RESULTS: Heart-base tumors, presumed or confirmed to be chemodectomas, were diagnosed via histopathology or imaging...
April 30, 2018: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29723895/anticancer-drug-related-nonvalvular-atrial-fibrillation-challenges-in-management-and-antithrombotic-strategies
#12
Antonella Tufano, Maurizio Galderisi, Luca Esposito, Valentina Trimarco, Daniela Sorriento, Guy Gerusalem, Marco Picardi, Patrizio Lancellotti, Fabrizio Pane
Cancer patients may experience nonvalvular atrial fibrillation (AF) as a manifestation of cardiotoxicity. AF may be a direct effect of a neoplasm or, more often, appear as a postsurgical complication, especially after thoracic surgery. AF may also develop as a consequence of anticancer therapy (chemotherapy or radiotherapy), a condition probably underestimated. Cancer patients with AF require a multidisciplinary approach involving oncologists/hematologists, cardiologists, and coagulation experts. An echocardiogram should be performed to detect possible abnormalities of left ventricular systolic and diastolic function, as well as left atrial dilation and the existence of valvular heart disease, to determine pretest probability of sinus rhythm restoration, and identify the best treatment...
May 3, 2018: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/29707697/joint-segmentation-of-multiple-thoracic-organs-in-ct-images-with-two-collaborative-deep-architectures
#13
Roger Trullo, Caroline Petitjean, Dong Nie, Dinggang Shen, Su Ruan
Computed Tomography (CT) is the standard imaging technique for radiotherapy planning. The delineation of Organs at Risk (OAR) in thoracic CT images is a necessary step before radiotherapy, for preventing irradiation of healthy organs. However, due to low contrast, multi-organ segmentation is a challenge. In this paper, we focus on developing a novel framework for automatic delineation of OARs. Different from previous works in OAR segmentation where each organ is segmented separately, we propose two collaborative deep architectures to jointly segment all organs, including esophagus, heart, aorta and trachea...
September 2017: Deep Learning in Medical Image Analysis and Multimodal Learning for Clinical Decision Support: Third International Workshop, DLMIA 2017, and 7th International Workshop, ML-CDS 2017, Held in Conjunction with MICCAI 2017, Québec City, QC, Canada, Septembe
https://www.readbyqxmd.com/read/29703501/heart-volume-reduction-during-radiotherapy-involving-the-thoracic-region-in-children-an-unexplained-phenomenon
#14
Irma W E M van Dijk, Jorrit Visser, Jan Wiersma, Jessica R van Boggelen, Brian V Balgobind, Elizabeth A M Lieke Feijen, Sophie C Huijskens, Wouter E M Kok, Leontien C M Kremer, Coen R N Rasch, Arjan Bel
BACKGROUND AND PURPOSE: Radiotherapy involving the thoracic region is associated with cardiotoxicity in long-term childhood cancer survivors. We quantified heart volume changes during radiotherapy in children (<18 years) and investigated correlations with patient and treatment related characteristics. MATERIAL AND METHODS: Between 2010 and 2016, 34 children received radiotherapy involving the thoracic region. We delineated heart contours and measured heart volumes on 114 CBCTs...
April 24, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29699582/effects-of-megavoltage-computed-tomographic-scan-methodology-on-setup-verification-and-adaptive-dose-calculation-in-helical-tomotherapy
#15
Jian Zhu, Tong Bai, Jiabing Gu, Ziwen Sun, Yumei Wei, Baosheng Li, Yong Yin
BACKGROUND: To evaluate the effect of pretreatment megavoltage computed tomographic (MVCT) scan methodology on setup verification and adaptive dose calculation in helical TomoTherapy. METHODS: Both anthropomorphic heterogeneous chest and pelvic phantoms were planned with virtual targets by TomoTherapy Physicist Station and were scanned with TomoTherapy megavoltage image-guided radiotherapy (IGRT) system consisted of six groups of options: three different acquisition pitches (APs) of 'fine', 'normal' and 'coarse' were implemented by multiplying 2 different corresponding reconstruction intervals (RIs)...
April 27, 2018: Radiation Oncology
https://www.readbyqxmd.com/read/29698060/dosimetric-comparison-of-five-different-techniques-for-craniospinal-irradiation-across-15-european-centers-analysis-on-behalf-of-the-siop-e-btg-radiotherapy-working-group
#16
Enrica Seravalli, Mirjam Bosman, Yasmin Lassen-Ramshad, Anne Vestergaard, Foppe Oldenburger, Jorrit Visser, Efi Koutsouveli, Chryssa Paraskevopoulou, Gail Horan, Thankamma Ajithkumar, Beate Timmermann, Carolina-Sofia Fuentes, Gillian Whitfield, Thomas Marchant, Laetitia Padovani, Eloise Garnier, Lorenza Gandola, Silvia Meroni, Bianca A W Hoeben, Martijn Kusters, Claire Alapetite, Sandra Losa, Farid Goudjil, Henriette Magelssen, Morten Egeberg Evensen, Frank Saran, Gregory Smyth, Barbara Rombi, Roberto Righetto, Rolf-Dieter Kortmann, Geert O Janssens
PURPOSE: Conventional techniques (3D-CRT) for craniospinal irradiation (CSI) are still widely used. Modern techniques (IMRT, VMAT, TomoTherapy® , proton pencil beam scanning [PBS]) are applied in a limited number of centers. For a 14-year-old patient, we aimed to compare dose distributions of five CSI techniques applied across Europe and generated according to the participating institute protocols, therefore representing daily practice. MATERIAL AND METHODS: A multicenter (n = 15) dosimetric analysis of five different techniques for CSI (3D-CRT, IMRT, VMAT, TomoTherapy® , PBS; 3 centers per technique) was performed using the same patient data, set of delineations and dose prescription (36...
April 26, 2018: Acta Oncologica
https://www.readbyqxmd.com/read/29682708/-early-diagnosis-and-treatment-of-anastomotic-leak-after-rectal-cancer-surgery
#17
Tinghan Yang, Ziqiang Wang
Anastomotic leakage is the most common major complication after mid-low rectal cancer surgery. Due to lack of knowledge regarding the virtual mechanisms of anastomotic leakage, not much can be done to prevent its development. The aim of the present review was to discuss the prevention, early diagnosis, and treatment of anastomotic leakage after rectal cancer surgery. For patients with risk factors, such as anastomotic site within 4 cm from anus, obese men, lack of blood supply of the anastomotic site, neoadjuvant chemo radiotherapy, or patients with severe co-morbidity, aggressive preventive strategy should be adopted...
2018: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/29681771/dosimetry-of-the-left-anterior-descending-coronary-artery-in-left-breast-cancer-patients-treated-with-postoperative-external-radiotherapy
#18
Adela Poitevin-Chacón, Jessica Chávez-Nogueda, Rubí Ramos Prudencio, Alejandro Calvo Fernández, Alejandro Rodríguez Laguna, Jesús Linares, Julio César Martínez
Aim: To evaluate the dose distribution to the left anterior descending (LAD) coronary artery in patients treated with postoperative three-dimensional conformal radiotherapy (3DCRT). Background: Postoperative radiotherapy may increase the risk of heart disease, particularly in patients with left-sided breast cancer. Clinical data on doses to the LAD are limited. Materials and methods: Retrospective study of 14 patients who underwent postoperative 3DCRT for left breast cancer in 2014...
March 2018: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/29681424/contralateral-tissue-sparing-in-lymph-node-positive-breast-cancer-radiotherapy-with-vmat-technique
#19
Maija Rossi, Eeva Boman, Mika Kapanen
The objective of this study was to modify volumetric modulated arc therapy (VMAT) design for breast irradiation with axillary lymph node involvement to enhance normal tissue sparing while maintaining good planning target volume (PTV) coverage. Four VMAT plans were generated retrospectively for 10 patients with breast cancer for comparison. First, 2 partial arcs with an avoidance sector (Pavoid) for the lung and the heart were created. Second, a split-arc design with 2 partial arcs was used, changing the collimator angle by splitting the arcs in the middle, resulting in 4 partial arcs (Psplit)...
April 19, 2018: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/29670854/deep-inspiration-breath-hold-techniques-and-advantages-for-cardiac-sparing-during-breast-cancer-irradiation
#20
REVIEW
Carmen Bergom, Adam Currey, Nina Desai, An Tai, Jonathan B Strauss
Historically, heart dose from left-sided breast radiotherapy has been associated with a risk of cardiac injury. Data suggests that there is not a threshold for the deleterious effects from radiation on the heart. Over the past several years, advances in radiation delivery techniques have reduced cardiac morbidity due to treatment. Deep inspiration breath hold (DIBH) is a technique that takes advantage of a more favorable position of the heart during inspiration to minimize heart doses over a course of radiation therapy...
2018: Frontiers in Oncology
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