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Cardiac Radiotherapy

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https://www.readbyqxmd.com/read/28454466/identification-of-molecular-characteristics-induced-by-radiotherapy-in-rectal-cancer-based-on-microarray-data
#1
Chang Ge, Mengxia Wu, Guifang Chen, Guanying Yu, Dehui Ji, Shaozhao Wang
The present study aimed to reveal the molecular characteristics induced by radiotherapy in rectal cancer at the transcriptome level. Microarray data (ID, GSE26027) downloaded from the Gene Expression Omnibus database were re-analyzed to identify differentially expressed genes (DEGs) between rectal cancer tissues during and prior to radiotherapy. The DEGs were then inputted into the database for annotation, visualization and integrated discovery, an online tool to perform enrichment analyses, and into the search tool for the retrieval of interacting genes/proteins database to identify protein-protein interactions (PPIs)...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28447341/chemotherapy-alone-versus-chemotherapy-plus-radiotherapy-for-adults-with-early-stage-hodgkin-lymphoma
#2
REVIEW
Oliver Blank, Bastian von Tresckow, Ina Monsef, Lena Specht, Andreas Engert, Nicole Skoetz
BACKGROUND: Combined modality treatment consisting of chemotherapy followed by localised radiotherapy is the standard treatment for patients with early stage Hodgkin lymphoma (HL). However, due to long- term adverse effects such as secondary malignancies the role of radiotherapy has been questioned recently and some clinical study groups advocate chemotherapy only for this indication. OBJECTIVES: To assess the effects of chemotherapy alone compared to chemotherapy plus radiotherapy in adults with early stage HL ...
April 27, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28440795/multimodal-chest-surface-motion-data-for-respiratory-and-cardiovascular-monitoring-applications
#3
Ghufran Shafiq, Kalyana Chakravarthy Veluvolu
Chest surface motion is of significant importance as it contains information of respiratory and cardiac systems together with the complex coupling between these two systems. Chest surface motion is not only critical in radiotherapy, but also useful in personalized systems for continuous cardiorespiratory monitoring. In this dataset, a multimodal setup is employed to simultaneously acquire cardiorespiratory signals. These signals include high-density trunk surface motion (from 16 distinct locations) with VICON motion capture system, nasal breathing from a thermal sensor, respiratory effort from a strain belt and electrocardiogram in lead-II configuration...
April 25, 2017: Scientific Data
https://www.readbyqxmd.com/read/28440606/pathogenesis-and-prevention-of-radiation-induced-myocardial-fibrosis
#4
Li Kun Liu, Weiwei Ouyang, Xing Zhao, Sheng Fa Su, Yan Yang, Wen Jin Ding, Da Xian Luo, Zhi Xu He, Bing Lu
Radiation therapy is one of the most important methods for the treatment of malignant tumors. However, in radiotherapy for thoracic tumors such as breast cancer, lung cancer, esophageal cancer, and mediastinal lymphoma, the heart, located in the mediastinum, is inevitably affected by the irradiation, leading to pericardial disease, myocardial fibrosis, coronary artery disease, valvular lesions, and cardiac conduction system injury, which are considered radiation-induced heart diseases. Delayed cardiac injury especially myocardial fibrosis is more prominent, and its incidence is as high as 20–80%...
March 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28432730/assessment-of-voluntary-deep-inspiration-breath-hold-with-cine-imaging-for-breast-radiotherapy
#5
Reuben Patrick Estoesta, Lani Attwood, Diana Naehrig, Elizabeth Claridge-Mackonis, David Odgers, Darren Martin, Melissa Pham, Joanne Toohey, Susan Carroll
Deep Inspiration Breath-Hold (DIBH) techniques for breast cancer radiation therapy (RT) have reduced cardiac dose compared to Free Breathing (FB). Recently, a voluntary deep inspiration breath-hold (vDIBH) technique was established using in-room lasers and skin tattoos to monitor breath-hold. An in-house quality assessment of positional reproducibility during RT delivery with vDIBH in patients with left-sided breast cancer was evaluated. The electronic portal imaging device (EPID) was used in cinematographic (CINE) mode to capture a sequence of images during beam delivery...
April 22, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28426464/comparative-effectiveness-in-urology-a-state-of-the-art-review-utilizing-a-systematic-approach
#6
Jathin Bandari, Charles B Wessel, Bruce L Jacobs
PURPOSE OF REVIEW: Comparative effectiveness research plays a vital role in healthcare delivery by guiding evidence-based practices. We performed a state-of-the-art review of comparative effectiveness research in the urology literature for 2016, utilizing a systematic approach. Seven high-impact papers are reviewed in detail. RECENT FINDINGS: Across the breadth of urology, there were several important studies in comparative effectiveness research, of which we will highlight two randomized controlled trials and five observational trials: radiotherapy, prostatectomy, and active monitoring have equivalent mortality outcomes in patients with localized prostate cancer; the ideal modality of patient education is yet to be determined, and written education has minimal effect on patient perception of prostate specific antigen screening; robotic prostatectomy is associated with higher perioperative complication rates on a population basis; racial disparities exist in incontinence rates after treatment for localized prostate cancer, but not in irritative, bowel, or sexual function; androgen deprivation therapy is associated with higher fracture, peripheral artery disease, and cardiac-related complications than bilateral orchiectomy; robotic and open cystectomy offer comparable cancer-specific mortality and perioperative outcomes; and bonuses for low-cost hospitals can inadvertently reward low-quality hospitals...
April 19, 2017: Current Opinion in Urology
https://www.readbyqxmd.com/read/28426338/causes-of-death-in-long-term-lung-cancer-survivors-a-seer-database-analysis
#7
Omar Abdel-Rahman
BACKGROUND: Long-term (>5 years) lung cancer survivors represent a small but distinct subgroup of lung cancer patients and information about the causes of death of this subgroup is scarce. METHODS: Surveillance, epidemiology and end results (SEER) database (1988-2008) has been utilized to determine the causes of death of long-term survivors of lung cancer. Survival analysis has been conducted through Kaplan Meier analysis and multivariate analysis has been conducted through a Cox proportional hazard model...
April 20, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28424936/preoperative-chemoradiotherapy-versus-perioperative-chemotherapy-for-patients-with-resectable-esophageal-or-gastroesophageal-junction-adenocarcinoma
#8
M C J Anderegg, P C van der Sluis, J P Ruurda, S S Gisbertz, M C C M Hulshof, M van Vulpen, N Haj Mohammed, H W M van Laarhoven, M J Wiezer, M Los, M I van Berge Henegouwen, R van Hillegersberg
BACKGROUND: This study compares neoadjuvant chemoradiotherapy (nCRT) with perioperative chemotherapy (pCT) for patients with resectable esophageal or gastroesophageal junction (GEJ) adenocarcinoma in terms of toxicity, postoperative complications, pathologic response, and survival. METHODS: This study retrospectively analyzed and compared 313 patients with resectable esophageal or GEJ adenocarcinoma treated with either nCRT (carboplatin/paclitaxel 41.4 Gy, n = 176) or pCT (epirubicin, cisplatin and capecitabine, n = 137)...
April 19, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28424841/dosimetric-predictors-of-radiation-induced-pericardial-effusion-in%C3%A2-esophageal-cancer
#9
Ichiro Ogino, Shigenobu Watanabe, Kentaro Sakamaki, Yuka Ogino, Chikara Kunisaki, Kazuo Kimura
PURPOSE: To evaluate the dose-volume parameters of the pericardium and heart in order to reduce the risk of radiation-induced pericardial effusion (PE) and symptomatic PE (SPE) in esophageal cancer patients treated with concurrent chemoradiotherapy. METHODS: In 86 of 303 esophageal cancer patients, follow-up CT was obtained at least 24 months after concurrent chemoradiotherapy. Correlations between clinical factors, including risk factors for cardiac disease, dosimetric factors, and the incidence of PE and SPE after radiotherapy were analyzed using Cox proportional hazard regression analysis...
April 19, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28410144/cardiotoxicity-in-oncology-and-coronary-microcirculation-future-challenges-in-theranostics
#10
Giovanni Peretto, Davide Lazzeroni, Carmem L Sartorio, Paolo G Camici
Many of the patients undergoing chemotherapy or radiotherapy for cancer are at increased risk of developing cardiovascular diseases. Recent evidence suggests that cardiac dysfunction and subsequent heart failure are mainly due to vascular toxicity rather than only to due to myocyte toxicity. However, not all of the vascular toxicity of cancer therapies can be explained by epicardial coronary artery disease. In fact, in the last decades, it has been found that myocardial ischemia may occur as a consequence of structural or functional dysfunction of the complex network of vessels, which cannot be seen by a coronary angiography: the coronary microcirculation...
June 1, 2017: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/28392465/l-carnitine-preserves-cardiac-function-by-activating-p38-mapk-nrf2-signalling-in-hearts-exposed-to-irradiation
#11
Zhigang Fan, Yang Han, Yuanpeng Ye, Chao Liu, Hui Cai
Radiation-induced heart damage (RIHD) is now considered to be one of the causes of mortality in cancer patients undergoing radiotherapy. Cardiac function impairments are clinical manifestations of RIHD. L-carnitine shows protective effects against irradiation and heart disease. This study was aimed to investigate the cardioprotective effects and potential molecular mechanisms of L-carnitine against RIHD. Mouse hearts were exposed to γ-radiation to induce RIHD. L-carnitine at doses of 100mg/Kg and 200mg/Kg was used to treat animals intraperitoneally...
June 5, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28380247/a-new-ct-reconstruction-technique-using-adaptive-deformation-recovery-and-intensity-correction-adric
#12
You Zhang, Jianhua Ma, Puneeth Iyenga, Yuncheng Zhong, Jing Wang
PURPOSE: Sequential same-patient CT images may involve deformation-induced and non-deformation-induced voxel intensity changes. An adaptive deformation recovery and intensity correction (ADRIC) technique was developed to improve the CT reconstruction accuracy, and to separate deformation from non-deformation-induced voxel intensity changes between sequential CT images. MATERIALS AND METHODS: ADRIC views the new CT volume as a deformation of a prior high-quality CT volume, but with additional non-deformation-induced voxel intensity changes...
April 5, 2017: Medical Physics
https://www.readbyqxmd.com/read/28364270/safe-trial-an-ongoing-randomized-clinical-study-to-assess-the-role-of-cardiotoxicity-prevention-in-breast-cancer-patients-treated-with-anthracyclines-with-or-without-trastuzumab
#13
REVIEW
Icro Meattini, Giuseppe Curigliano, Francesca Terziani, Carlotta Becherini, Mario Airoldi, Giacomo Allegrini, Domenico Amoroso, Sandro Barni, Carmelo Bengala, Valentina Guarneri, Paolo Marchetti, Francesca Martella, Pierluigi Piovano, Agnese Vannini, Isacco Desideri, Roberto Tarquini, Giorgio Galanti, Giuseppe Barletta, Lorenzo Livi
Over the years, thanks to the addition of new generation systemic agents, as well as the use of more advanced and precise radiotherapy techniques, it was able to obtain a high curability rate for breast cancer. Anthracyclines play a key role in the treatment of breast disease, with a well-known benefit on disease-free survival of patients with positive nodal status. Trastuzumab have shown a significant outcome advantage after 1-year administration in case of HER2-positive disease. Unfortunately, significant increase in cardiotoxicity has been observed after anthracyclines and trastuzumab therapies...
May 2017: Medical Oncology
https://www.readbyqxmd.com/read/28362511/effect-of-accurate-heart-delineation-on-cardiac-dose-during-the-convert-trial
#14
Nicki Groom, Elena Wilson, Corinne Faivre-Finn
OBJECTIVES: This study investigates the effect of deviation from protocol in heart delineation for the CONVERT Trial ( ClinicalTrials.gov Identifier NCT00433563) quality assurance (QA) programme, and the effect of that on mean cardiac dose and percentage of heart volume receiving ≥5Gy (V5%) and ≥30Gy (V30%). METHODS: CONVERT trial patients with limited-stage small-cell lung cancer (LS SCLC) were randomised to receive 45Gy in 30# BD or 66Gy in 33# OD radiotherapy, with concurrent chemotherapy in both arms...
March 31, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28359488/left-atrial-and-carotid-body-paraganglioma
#15
Khaled Abdelhady, Samarth Durgam, Daniela Orza, Malek G Massad
We report a rare case of left atrial paraganglioma with a synchronous carotid body paraganglioma in a 30-year-old man with succinate dehydrogenase B gene mutation. The patient initially presented with a neck mass and palpitations. Laboratory test results showed elevated catecholamine levels. A cardiac paraganglioma was identified by computed tomography, meta-iodobenzylguanidine scintigraphy, and magnetic resonance imaging. Surgical resection of both paragangliomas were performed on two separate occasions. Serum and urine catecholamine levels returned to normal range...
April 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28353062/self-reported-long-term-cardiac-morbidity-in-breast-cancer-patients-a-retrospective-cohort-study-in-germany-passos-heart-study
#16
Daniel Wollschläger, Hiltrud Merzenich, Lukas Schwentner, Wolfgang Janni, Thomas Wiegel, Detlef Bartkowiak, Achim Wöckel, Marcus Schmidt, Heinz Schmidberger, Maria Blettner
PURPOSE: Improved survival after locoregional breast cancer has increased the concern about late adverse effects after therapy. In particular, radiotherapy was identified as a risk factor for major cardiac events in women treated until the 1990s. While modern radiotherapy with computerized planning based on 3D-imaging can help spare organs at risk, heart exposure may remain substantial. In a retrospective cohort study of women treated for locoregional breast cancer, we investigated whether current radiotherapy is associated with an elevated long-term cardiac morbidity risk...
March 28, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28347625/combination-of-radiotherapy-and-double-blockade-her2-with-pertuzumab-and-trastuzumab-for-her2-positive-metastatic-or-locally-recurrent-unresectable-and-or-metastatic-breast-cancer-assessment-of-early-toxicity
#17
Z Ajgal, S de Percin, V Diéras, J Y Pierga, F Campana, A Fourquet, Y M Kirova
BACKGROUND AND PURPOSES: We evaluate the early toxicity of concurrent use of radiotherapy, pertuzumab and trastuzumab in patients with HER2-positive metastatic or locally recurrent unresectable breast cancer. PATIENTS AND METHODS: A retrospective study was performed in a population of 23 consecutive patients between 2013 and 2015. Radiotherapy was performed on the chest area or metastatic sites during maintenance with pertuzumab and trastuzumab after six cycles of pertuzumab, trastuzumab and docetaxel...
March 24, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28338470/reducing-scan-angle-using-adaptive-prior-knowledge-for-a-limited-angle-intrafraction-verification-live-system-for-conformal-arc-radiotherapy
#18
Yawei Zhang, Fang-Fang Yin, You Zhang, Lei Ren
PURPOSE: To develop an adaptive prior knowledge guided image estimation technique to reduce the scan angle needed in the Limited-Angle Intrafraction Verification (LIVE) system for 4D-CBCT reconstruction. METHOD: The LIVE system has been previously developed to reconstruct 4D volumetric images on-the-fly during arc treatment for intrafraction target verification and dose calculation. In this study, we developed an adaptive constrained free-form deformation reconstruction technique in LIVE to further reduce the scanning angle needed to reconstruct the 4D-CBCT images for faster intrafraction verification...
March 24, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28323733/linear-endobronchial-ultrasound-guided-insertion-of-a-fiducial-marker-a-new-tool-for-tracking-central-lesions
#19
Alessio Casutt, Angela Koutsokera, Nicolas Peguret, Alban Lovis
Stereotactic body radiotherapy (SBRT) is an effective method for the treatment of localized primary lung tumors. Cyberknife, a highly accurate SBRT technique, follows the target during respiratory cycles using a metallic fiducial marker (FM) previously inserted into the lesion. Various methods have been described for the placement of an FM in peripheral pulmonary lesions; however, none of these is appropriate for mediastinal or hilar tumors. The placement of FMs in central lesions to achieve accurate SBRT is particularly relevant due to their higher mobility during respiratory and cardiac cycles...
April 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28319436/estimating-the-risks-of-breast-cancer-radiotherapy-evidence-from-modern-radiation-doses-to-the-lungs-and-heart-and-from-previous-randomized-trials
#20
Carolyn Taylor, Candace Correa, Frances K Duane, Marianne C Aznar, Stewart J Anderson, Jonas Bergh, David Dodwell, Marianne Ewertz, Richard Gray, Reshma Jagsi, Lori Pierce, Kathleen I Pritchard, Sandra Swain, Zhe Wang, Yaochen Wang, Tim Whelan, Richard Peto, Paul McGale
Purpose Radiotherapy reduces the absolute risk of breast cancer mortality by a few percentage points in suitable women but can cause a second cancer or heart disease decades later. We estimated the absolute long-term risks of modern breast cancer radiotherapy. Methods First, a systematic literature review was performed of lung and heart doses in breast cancer regimens published during 2010 to 2015. Second, individual patient data meta-analyses of 40,781 women randomly assigned to breast cancer radiotherapy versus no radiotherapy in 75 trials yielded rate ratios (RRs) for second primary cancers and cause-specific mortality and excess RRs (ERRs) per Gy for incident lung cancer and cardiac mortality...
March 20, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
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