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https://www.readbyqxmd.com/read/29352629/an-in-silico-comparative-dosimetric-study-of-postmastectomy-locoregional-irradiation-using-intensity-modulated-vs-3-dimensional-conventional-radiotherapy
#1
Pooja Khullar, Charu Garg, Sujit Nath Sinha, Inderjit Kaur, Niloy Ranjan Datta
An in silico dosimetric evaluation of intensity-modulated radiation therapy (IMRT) vs 3-dimensional conventional radiation therapy (3D-CRT) treatment plans in postmastectomy radiation therapy (PMRT) to the chest wall and regional lymphatics was conducted. Twenty-five consecutive patients with breast cancer referred for locoregional PMRT, stages T2-4 with N1-3, were planned to receive 50 Gy in 25 fractions with IMRT. Additionally, a 3D-CRT plan was generated using identical contours for the clinical target volumes (CTV), planning target volumes (PTV), and organs at risk (OAR)...
January 15, 2018: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/29351263/twenty-nine-new-limonoids-with-skeletal-diversity-from-the-mangrove-plant-xylocarpus-moluccensis
#2
Jianzhi Zhang, Wanshan Li, Yiguo Dai, Li Shen, Jun Wu
Twenty-nine new limonoids-named xylomolins A₁-A₇, B₁-B₂, C₁-C₂, D-F, G₁-G₅, H-I, J₁-J₂, K₁-K₂, L₁-L₂, and M-N, were isolated from the seeds of the mangrove plant, Xylocarpus moluccensis. Compounds 1-13 are mexicanolides with one double bond or two conjugated double bonds, while 14 belongs to a small group of mexicanolides with an oxygen bridge between C1 and C8. Compounds 15-19 are khayanolides containing a Δ8,14 double bond, whereas 20 and 21 are rare khayanolides containing a Δ14,15 double bond and Δ8,9, Δ14,15 conjugated double bonds, respectively...
January 19, 2018: Marine Drugs
https://www.readbyqxmd.com/read/29350307/living-with-chronic-pain-perceptions-of-breast-cancer-survivors
#3
Ting Bao, Andrew Seidman, Qing Li, Christina Seluzicki, Victoria Blinder, Salimah H Meghani, John T Farrar, Jun J Mao
PURPOSE: Breast cancer treatments may lead to chronic pain. For some breast cancer survivors (BCS), this experience can develop into the perception of living with chronic pain. The majority of BCS are postmenopausal and have hormone receptor-positive (HR+) breast cancer requiring aromatase inhibitors (AIs). Neither the prevalence nor risk factors associated with the perception of living with chronic pain among this population are well defined. METHODS: We conducted a cross-sectional survey among postmenopausal, HR+ BCS who previously took or were currently taking AIs...
January 19, 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29349764/sexual-function-post-breast-cancer
#4
Lauren Streicher, James A Simon
The consequences of estrogen deprivation and therapeutic interventions such as radiation, chemotherapy and surgery have a significant negative impact on libido, sexual arousal, orgasmic function and the ability to have pleasurable intercourse. Evaluation and treatment of female sexual dysfunction is a significant unmet need in the breast cancer survivor in spite of the availability of safe and effective treatments.
2018: Cancer Treatment and Research
https://www.readbyqxmd.com/read/29349760/advancements-and-personalization-of-breast-cancer-treatment-strategies-in-radiation-therapy
#5
Meena S Moran
Significant technologic advances in radiation treatment delivery now allow for more personalized delivery considerations which incorporate individual patient characteristics (such as tumor location and patient anatomy) and more precise delivery in the breast conservation or post-mastectomy setting. The combined advancements with other treatment modalities (i.e., systemic therapy, surgical management) have had direct effects on local-regional management and outcomes such that currently, local-regional relapses after definitive treatment for localized disease are now rarely experienced...
2018: Cancer Treatment and Research
https://www.readbyqxmd.com/read/29349758/is-dcis-overrated
#6
Joshua Feinberg, Rachel Wetstone, Dana Greenstein, Patrick Borgen
Ductal carcinoma in situ (DCIS), the noninvasive form of breast cancer (BC), comprises just over 20% of breast cancer cases diagnosed each year in the USA. Most patients are treated with local excision of the disease followed by whole breast radiation therapy. Total mastectomy is not an uncommon approach, and total mastectomy with a contralateral risk-reducing mastectomy has been on the rise in the past decade. In estrogen receptor-positive disease, patients are often offered endocrine ablative therapy with a selective estrogen receptor modulator or an aromatase inhibitor as both treatment and prevention...
2018: Cancer Treatment and Research
https://www.readbyqxmd.com/read/29349604/quality-of-training-in-radiation-oncology-in-germany-where-do-we-stand-results-from-a%C3%A2-2016-2017-survey-performed-by-the-working-group-young-degro-of-the-german-society-of-radiation-oncology-degro
#7
C T Dietzel, K Jablonska, M Niyazi, T Gauer, N Ebert, C Ostheimer, D Krug
PURPOSE: To evaluate the current situation of young radiation oncologists in Germany with regard to the contents and quality of training and level of knowledge, as well as their working conditions and professional satisfaction. METHODS: From June 2016 to February 2017, a survey was conducted by the young DEGRO (yDEGRO) using an online platform. The questionnaire consisted of 28 items examining a broad range of aspects influencing residency. There were 96 completed questionnaires RESULTS: 83% of participants stated to be very or mostly pleased with their residency training...
January 18, 2018: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/29348858/the-survival-benefit-of-neoadjuvant-chemotherapy-and-pcr-among-patients-with-advanced-stage-triple-negative-breast-cancer
#8
Tithi Biswas, Jimmy T Efird, Shreya Prasad, Charulata Jindal, Paul R Walker
Triple negative breast cancer (TNBC) is an aggressive subtype that accounts for 15-20% of cases, with a higher incidence of relapse/death. Even with adjuvant chemotherapy, the 5 year distant metastasis-free survival rate remains low. A total of 452 tumor registry patients with TNBC and no evidence of metastatic disease were identified over the period of 1996-2011. The median age and follow-up time were 51 (range=21-88) and 3.9 (range=0.14-14) years. Approximately 75% of patients with stage III disease received neoadjuvant chemotherapy (NACT) compared with 47% for stage II...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29347839/brain-metastases-epidemiology-in-a-tunisian-population-trends-and-outcome
#9
Mehdi Benna, Nesrine Mejri, Manel Mabrouk, Houda El Benna, Soumaya Labidi, Nouha Daoud, Hamouda Boussen
AIM: We reported anatomo-clinical features of brain metastases (BMs) collected in a Tunisian medical oncology department. PATIENTS & METHODS: We retrospectively identified all cases of BM within a cohort of 7055 patients, treated for a histologically confirmed nonhematological cancer between 2000 and 2016. Data about age, sex and primary tumor were collected. RESULTS: Incidence was 1.9% and mean age was 54 years with a 1.24 sex ratio. BMs were symptomatic in 73...
January 19, 2018: CNS Oncology
https://www.readbyqxmd.com/read/29346711/early-assessment-of-post-surgical-outcomes-with-pre-pectoral-breast-reconstruction-a-literature-review-and-meta-analysis
#10
Abhishek Chatterjee, Maurice Y Nahabedian, Allen Gabriel, David Macarios, Mousam Parekh, Fang Wang, Leah Griffin, Steven Sigalove
BACKGROUND: Pre-pectoral breast reconstruction is an emerging surgical approach. This study provides an early assessment of outcomes with the technique. METHODS: A comprehensive literature review was performed through searches of PubMed® /MEDLINE® to identify studies on pre-pectoral reconstruction. Patient characteristics and outcomes were extracted from studies and pooled. Linear relationships between complication rates and patient characteristics with pre-pectoral reconstruction were analyzed...
January 18, 2018: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29345149/medical-management-of-brain-metastases-and-leptomeningeal-disease-in-patients-with-breast-carcinoma
#11
Kelsey M Bowman, Priya Kumthekar
Breast cancer is the most common malignancy among women and accounts for the second highest number of cancer-related deaths. With patients surviving longer due to advances in systemic control, the incidence of CNS involvement is increasing; however, the management of CNS metastases has not undergone parallel advancements. The blood-brain barrier limits the efficacy of most systemic chemotherapies, and the utilization of surgery and radiation beyond first-line therapy is limited. We will explore the recent developments in the medical management of breast cancer brain metastasis...
January 18, 2018: Future Oncology
https://www.readbyqxmd.com/read/29345023/the-narrow-treatment-road-to-survival-everyday-life-perspectives-of-women-with-breast-cancer-from-iraq-and-the-former-yugoslavia-undergoing-radiation-therapy-in-sweden
#12
A Holst-Hansson, E Idvall, I Bolmsjö, A Wennick
This study aimed at exploring how women from Iraq and the former Yugoslavia, diagnosed with breast cancer and living in Sweden, experience their everyday life during radiation therapy. A qualitative research design was used comprising interviews with ten women, five originating from Iraq and five from the former Yugoslavia. Striving to survive, the women experienced their everyday life during radiation therapy as extremely challenging. This experience can be placed into three categories: strategies for survival, keeping up appearances and staying in control...
January 18, 2018: European Journal of Cancer Care
https://www.readbyqxmd.com/read/29343723/pharmacological-targeting-of-bet-proteins-attenuates-radiation-induced-lung-fibrosis
#13
Jian Wang, Fangzheng Zhou, Zhenyu Li, Hong Mei, Ye Wang, Hong Ma, Liangliang Shi, Ai Huang, Tao Zhang, Zhenyu Lin, Gang Wu
Radiation-induced lung injury has restricted radiotherapy for thoracic cancer. The purpose of this study was to investigate the radioprotective effects of bromodomain and extra terminal (BET) inhibitor JQ1 in a murine model of pulmonary damage. Chest computed tomography (CT) was performed in a rat model after 20 Gy radiation of the right thorax. And histological evaluation and protein expressions of irradiated tissue were analyzed to confirm the potential anti-fibrosis effect of JQ1 and its underlying mechanisms...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29342302/determination-of-the-appropriate-physical-density-of-internal-metallic-ports-in-temporary-tissue-expanders-for-the-treatment-planning-of-post-mastectomy-radiation-therapy
#14
Norifumi Mizuno, Haruna Takahashi, Jiro Kawamori, Naoki Nakamura, Mami Ogita, Shogo Hatanaka, Ryouhei Yamauchi, Masatsugu Hariu, Kenji Sekiguchi
Some patients undergoing breast reconstruction require post-mastectomy radiation therapy, but the metallic ports used in temporary tissue expanders attenuate the X-rays. In this study, we evaluated by the film method, the attenuation of 4 MV and 6 MV X-rays after passing through a metallic port, with the aim of identifying a useful method for determining the appropriate density to use in the radiation treatment planning system (RTPS), taking into account the distance between the metallic port and the targets...
January 12, 2018: Journal of Radiation Research
https://www.readbyqxmd.com/read/29339047/the-impact-of-semilateral-decubitus-position-on-the-dose-volume-parameters-of-the-heart-and-lung-for-left-sided-breast-cancer-patients-a-comparative-dosimetric-study
#15
Azza Helal, Mohamed Farouk, Sherief H Gamie, Mahran Abdo, Lila Mosa, Amr Abdul Aziz
PURPOSE: When treating breast cancer with radiation therapy, the impact of treatment position on heart and lung dose-volume parameters (DVPs) is largely dependent on the maximal heart distance (MHD) and central lung distance (CLD). We evaluate how much heart and lung sparing can be achieved using the semilateral decubitus (SLD) position without and with breath hold compared with the standard supine position for left-sided breast cancer patients. A secondary aim was to investigate the impact of MHD and CLD on heart and lung DVPs...
December 2, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29338088/margins-in-breast-cancer-how-much-is-enough
#16
REVIEW
Melissa Pilewskie, Monica Morrow
The appropriate negative margin width for women undergoing breast-conserving surgery for both ductal carcinoma in situ (DCIS) and invasive carcinoma is controversial. This review examines the available data on the margin status for invasive breast cancer and DCIS, and highlights the similarities and differences in tumor biology and standard treatments that affect the local recurrence (LR) risk and, therefore, the optimal surgical margin. Consensus guidelines support a negative margin, defined as no ink on tumor, for invasive carcinoma treated with breast-conserving therapy...
January 16, 2018: Cancer
https://www.readbyqxmd.com/read/29337140/characteristics-and-prognostic-factors-for-patients-with-her2-overexpressing-breast-cancer-and-brain-metastases-in-the-era-of-her2-targeted-therapy-an-argument-for-earlier-detection
#17
Aki Morikawa, Rui Wang, Sujata Patil, Adi Diab, Jonathan Yang, Clifford A Hudis, Heather L McArthur, Kathryn Beal, Andrew D Seidman
BACKGROUND: Although brain metastases (BM) are associated with poor prognosis, patients with human epidermal growth factor receptor 2 (HER2) overexpressing (HER2+) breast cancer (BC) with BM who are treated with anti-HER2 therapy have a relatively longer survival after BM diagnosis compared with other subtypes and HER2+ patients previously untreated with anti-HER2 therapy. It is unclear if previously reported prognostic factors are applicable to patients with HER2+ BC in the era of HER2-targeted therapy...
December 21, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/29336987/the-in-vitro-radiosensitizer-potential-of-resveratrol-on-mcf-7-breast-cancer-cells
#18
Isabel Cristina da Costa Araldi, Fernando Primitivo Romero Bordin, Francine Carla Cadoná, Fernanda Barbisan, Verônica Farina Azzolin, Cibele Ferreira Teixeira, Tadeu Baumhardt, Ivana Beatrice Mânica da Cruz, Marta Maria Medeiros Frescura Duarte, Liliane de Freitas Bauermann
Radiation therapy is commonly applied in breast cancer (BC) patients. However, radioresistance and side effects are limiting factors of this practice. Therefore, studying substances that can enhance the radiation effect and, at the same time, protect normal cells is very relevant. Thus, the aim of this work was to assess the radiosensitizer effect of resveratrol (RV) on BC cells (MCF-7). A high cytotoxic and antiproliferative effect was observed in the treatment with 10 μM of RV + 3 Gy ionizing radiation (IR)...
January 11, 2018: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29332344/in-vitro-antitumor-activity-of-guttiferone-a-in-human-breast-cancer-cells-is-mediated-via-apoptosis-mitochondrial-mediated-oxidative-stress-and-reactive-oxygen-species-production
#19
Hai-Ming Wu, Yu-Mei Li
PURPOSE: Breast cancer is the second most frequently diagnosed cancer and is considered as the main cause of cancer related death in females. It is estimated that about one-third of women with breast cancer develop metastases and eventually die of this disease. The main treatment options for breast cancer include surgical interventions followed by chemotherapy, hormonotherapy or radiation. However, the side effects associated with the treatment of breast cancer negatively affects the quality of patient's life...
November 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29332078/magnetic-resonance-guided-high-intensity-focused-ultrasound-for-treating-movement-disorders
#20
Young Goo Kim, Eun Jung Kweon, Won Seok Chang, Hyun Ho Jung, Jin Woo Chang
Transcranial magnetic resonance-guided focused ultrasound (MRgFUS) surgery has recently gained favor as a novel, noninvasive alternative to conventional neurosurgery. In contrast to traditional ablative interventions, transcranial MRgFUS surgery is entirely imaging-guided and uses continuous temperature measurements at the target and surrounding tissue taken in real-time. Unlike Gamma Knife radiosurgery, MRgFUS surgery can make a lesion immediately and does not use ionizing radiation. Moreover, since no metallic device is implanted, MR imaging-based diagnosis is not restricted throughout life...
2018: Progress in Neurological Surgery
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