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https://www.readbyqxmd.com/read/29777945/patterns-of-care-and-outcomes-of-chemoradiation-versus-radiation-alone-for-mgmt-promoter-unmethylated-glioblastoma
#1
Anna Lee, Nikita Malakhov, Niki Sheth, Arthur Wang, Peter Han, David Schreiber
OBJECTIVE: The recommended treatment for O6 -methylguanine-DNA methyltransferase (MGMT) promoter unmethylated glioblastoma (GBM) is radiation therapy with concurrent/adjuvant temozolomide (TMZ). However, it is well known that the clinical benefit from TMZ is lower in these patients. We sought to analyze patterns of care and outcomes of chemoradiation versus radiation alone in this cohort using a large, hospital database. PATIENTS AND METHODS: Patients diagnosed with MGMT promoter unmethylated GBM from 2010 to 2012 who received radiation (RT) or chemoradiation (CRT) were identified in the National Cancer Database...
May 16, 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29777897/robot-assisted-radiofrequency-ablation-of-a-sacral-s1-s2-aggressive-hemangioma
#2
A Kaoudi, C Capel, L Chenin, J Peltier, M Lefranc
Aggressive vertebral hemangiomas are rare tumors of the spine. The treatment management strategy usually consists of vertebroplasty, radiation therapy or in rare cases of surgical strategy. We present a case of a bulging sacral S1-S2 hemangioma in the spinal canal that could not be managed in the usual manner. Here, we demonstrate the usefulness of radiofrequency ablation technique as an alternative treatment as well as robotic assistance for optimal placement of the ablation probe within the lesion.
May 16, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29777301/role-of-the-nrp-1-mediated-vegfr2-independent-pathway-on-radiation-sensitivity-of-non-small-cell-lung-cancer-cells
#3
Chenxi Hu, Panrong Zhu, Youyou Xia, Kaiyuan Hui, Mei Wang, Xiaodong Jiang
PURPOSE: To determine if inhibiting neuropilin-1 (NRP-1) affects the radiosensitivity of NSCLC cells through a vascular endothelial growth factor receptor 2 (VEGFR2)-independent pathway, and to assess the underlying mechanisms. METHODS: The expression of VEGFR2, NRP-1, related signaling molecules, abelson murine leukemia viral oncogene homolog 1 (ABL-1), and RAD51 were determined by RT-PCR and Western blotting, respectively. Radiosensitivity was assessed using the colony-forming assay, and the cell apoptosis were analyzed by flow cytometry...
May 17, 2018: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/29776830/pharmacological-modulation-of-radiation-induced-oral-mucosal-complications
#4
S Bockel, A Vallard, A Lévy, S François, M Bourdis, C Le Gallic, D Riccobono, P Annede, M Drouet, Y Tao, P Blanchard, É Deutsch, N Magné, C Chargari
Radiation-induced mucositis is a common toxicity, especially in patients with head and neck cancers. Despite recent technological advances in radiation therapy, such as intensity-modulated radiotherapy, radiation-induced mucositis is still causing treatment disruptions, negatively affecting patients' long and short term quality of life, and impacting medical resources use with economic consequences. The objective of this article was to review the latest updates in the management of radiation-induced mucositis, with a focus on pharmaceutical strategies for the prevention or treatment of mucositis...
May 15, 2018: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/29776676/two-cases-of-arterioureteral-fistula-in-the-setting-of-previous-radiation-therapy-and-indwelling-ureteral-stents-results-of-endovascular-management
#5
Thenappan Chandrasekar, Neil Pugashetti, Zachary Klaassen, Hanan Goldberg, Paul Dong, Stanley A Yap
No abstract text is available yet for this article.
April 28, 2018: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/29776675/risk-factors-for-near-miss-events-and-safety-incidents-in-pediatric-radiation-therapy
#6
Nimrah Baig, Jiangxia Wang, Shereef Elnahal, Todd McNutt, Jean Wright, Theodore DeWeese, Stephanie Terezakis
BACKGROUND AND PURPOSE: Factors contributing to safety- or quality-related incidents (e.g. variances) in children are unknown. We identified clinical and RT treatment variables associated with risk for variances in a pediatric cohort. MATERIALS AND METHODS: Using our institution's incident learning system, 81 patients age ≤21 years old who experienced variances were compared to 191 pediatric patients without variances. Clinical and RT treatment variables were evaluated as potential predictors for variances using univariate and multivariate analyses...
May 15, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29776598/less-versus-more-radical-surgery-in-stage-ib1-cervical-cancer-a-population-based-study-of-long-term-survival
#7
Jill H Tseng, Alessia Aloisi, Yukio Sonoda, Ginger J Gardner, Oliver Zivanovic, Nadeem R Abu-Rustum, Mario M Leitao
BACKGROUND: Standard surgical treatment for women with stage IB1 cervical cancer consists of radical hysterectomy. This study assesses survival outcomes of those treated with less radical surgery (LRS; conization, trachelectomy, simple hysterectomy) compared to more radical surgery (MRS; modified radical, radical hysterectomy). METHODS: Using the Surveillance, Epidemiology and End Results database, we identified women <45 years with FIGO stage IB1 cervical cancer diagnosed from 1/1998 to 12/2012...
May 15, 2018: Gynecologic Oncology
https://www.readbyqxmd.com/read/29776351/a-computational-study-of-hedgehog-signalling-involved-in-basal-cell-carcinoma-reveals-the-potential-and-limitation-of-combination-therapy
#8
Antoine Buetti-Dinh, Rebecca Jensen, Ran Friedman
BACKGROUND: The smoothened (SMO) receptor is an essential component of the Sonic hedgehog (SHH) signalling, which is associated with the development of skin basal cell carcinoma (BCC). SMO inhibitors are indicated for BCC patients when surgical treatment or radiation therapy are not possible. Unfortunately, SMO inhibitors are not always well tolerated due to severe side effects, and their therapeutical success is limited by resistance mutations. METHODS: We investigated how common are resistance-causing mutations in two genomic databases which are not linked to BCC or other cancers, namely 1000 Genomes and ExAC...
May 18, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29775008/-skull-base-metastasis-from-differentiated-thyroid-carcinoma-3-cases-report-and-review-of-literature
#9
Z Chen, Q H Qiu, Q H Zhang, Z C Zhu, Y Peng, H Liu
Skull base metastasis from differentiated thyroid carcinoma (DTC), including papillary and follicular thyroid carcinoma, is a rare manifestation and easily misdiagnosed. In this study, we reported three cases whose initial clinical presentation was skull base metastasis complaints with the presence of silent primary sites. Based on the thyroid ultrasound and histopathology (identifying skull base and primary thyroid tumor), the final diagnoses of DTC metastasis to skull base were confirmed. Two patients underwent removal of metastasizing tumors in the skull base and primary thyroid cancer, and have respectively survived 58 months and 4 months since then...
June 5, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29774875/-clinical-efficacy-of-stereotactic-radiation-therapy-combined-with-temozolomide-on-recurrent-brain-glioma
#10
Huiping Zhao, Sha Liu, Chengchuan Jiang, Xiangjun Li, Sanyuan Tang
To investigate the clinical efficacy of stereotactic radiation therapy combined with temozolomide on recurrent glioma.
 Methods: A total of 36 patients with recurrent glioma were retrospectively analyzed and divided into a control group (n=12), who received stereotactic radiation therapy, and an experimental group (n=24), who received stereotactic radiation therapy plus temozolomide. The clinical efficacy and adverse reactions for the 2 groups were compared.
 Results: Total effective rate and local control rate for clinical treatment were 66...
April 28, 2018: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29774792/hypofractionated-radiotherapy-is-superior-to-conventional-fractionation-in-an-orthotopic-model-of-anaplastic-thyroid-cancer
#11
Ayman J Oweida, Andy Phan, Benjamin Vancourt, Tyler Robin, Mohammad K Hararah, Shilpa Bhatia, Dallin Milner, Shelby Lennon, Laura Pike, David Raben, Bryan R Haugen, Nikita Pozdeyev, Rebecca E Schweppe, Sana D Karam
Anaplastic thyroid cancer is an aggressive and highly lethal disease with poor outcomes and resistance to therapy. Despite multimodality treatment including radiation therapy and chemotherapy, response rates remain below 15% with a median time to progression of less than 3 months. Recent advances in radiotherapy delivery and gene-expression profiling may help guide patient selection for personalized therapy. The purpose of this study was to characterize the response to radiation in a panel of ATC cell lines and to test alternative radiotherapy fractionation schedules for overcoming radioresistance...
May 18, 2018: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/29774779/image-guided-radiation-therapy-for-post-operative-gynaecologic-cancer-patient-set-up-verification-with-and-without-implanted-fiducial-markers
#12
Donna H Murrell, Andrew Warner, Quinn Benwell, Wendy Wells, Danielle Scott, Vikram Velker, George Hajdok, David P D'Souza
BACKGROUND: Intensity modulated radiotherapy (IMRT) is increasingly being used to treat gynaecological malignancies in the postoperative setting. The purpose of this study was to evaluate the use of image-guided radiotherapy (IGRT) using cone-beam computed tomography (CBCT) with fiducial markers for daily localization. MATERIAL AND METHODS: A single institution study was performed of consecutive cervical or endometrial cancer patients receiving adjuvant external beam radiotherapy (n = 15)...
May 18, 2018: Acta Oncologica
https://www.readbyqxmd.com/read/29774423/diagnosis-and-management-of-gynecomastia-for-urologists
#13
REVIEW
Lee Baumgarten, Ali A Dabaja
PURPOSE OF REVIEW: Our aim is to review the steps of diagnosis and management of gynecomastia with a special focus on treatment of gynecomastia associated with androgen deprivation therapy for prostate cancer. RECENT FINDINGS: Recent studies investigating tamoxifen and radiation therapy for both therapy and prophylaxis of bicalutamide-induced gynecomastia are reviewed. Gynecomastia is a common clinical problem, affecting between one and two thirds of middle-aged men...
May 17, 2018: Current Urology Reports
https://www.readbyqxmd.com/read/29774168/evaluating-the-potential-for-maximized-t-cell-redistribution-entropy-to-improve-abscopal-responses-to-radiotherapy
#14
Rachel Walker, Jonathan D Schoenfeld, Shari Pilon-Thomas, Jan Poleszczuk, Heiko Enderling
The potential for local radiation therapy to elicit systemic (abscopal) anti-tumor immune responses has been receiving a significant amount of attention over the last decade. We recently developed a mathematical framework designed to simulate the systemic dissemination of activated T cells among multiple metastatic sites. This framework allowed the identification of non-intuitive patterns of T cell redistribution after localized therapy, and offered suggestions as to the optimal site to irradiate in order to increase the magnitude of an immune-mediated abscopal response...
September 2017: Convergent Science Physical Oncology
https://www.readbyqxmd.com/read/29774098/establishment-of-primary-cell-culture-and-an-intracranial-xenograft-model-of-pediatric-ependymoma-a-prospect-for-therapy-development-and-understanding-of-tumor-biology
#15
Lorena Favaro Pavon, Tatiana Tais Sibov, Silvia Regina Caminada de Toledo, Daniela Mara de Oliveira, Francisco Romero Cabral, Jean Gabriel de Souza, Pamela Boufleur, Luciana C Marti, Jackeline Moraes Malheiros, Edgar Ferreira da Cruz, Fernando F Paiva, Suzana M F Malheiros, Manoel A de Paiva Neto, Alberto Tannús, Sérgio Mascarenhas de Oliveira, Nasjla Saba Silva, Andrea Maria Cappellano, Antonio Sérgio Petrilli, Ana Marisa Chudzinski-Tavassi, Sérgio Cavalheiro
Background: Ependymoma (EPN), the third most common pediatric brain tumor, is a central nervous system (CNS) malignancy originating from the walls of the ventricular system. Surgical resection followed by radiation therapy has been the primary treatment for most pediatric intracranial EPNs. Despite numerous studies into the prognostic value of histological classification, the extent of surgical resection and adjuvant radiotherapy, there have been relatively few studies into the molecular and cellular biology of EPNs...
April 24, 2018: Oncotarget
https://www.readbyqxmd.com/read/29773446/effects-of-preparatory-coaching-and-home-practice-for-deep-inspiration-breath-hold-on-cardiac-dose-for-left-breast-radiation-therapy
#16
A Kim, A M Kalet, N Cao, D S Hippe, L C Fang, L Young, J Meyer, E V Lang, N A Mayr
AIMS: Deep inspiration breath hold (DIBH) reduces cardiac radiation exposure by creating cardiac-chest wall separation in breast cancer radiotherapy. DIBH requires sustaining chest wall expansion for up to 40 s and involves complex co-ordination of thoraco-abdominal muscles, which may not be intuitive to patients. We investigated the effect of in-advance preparatory DIBH coaching and home practice on cardiac doses. MATERIALS AND METHODS: Successive patients from 1 February 2015 to 31 December 2016 with left-sided breast cancer who underwent tangential field radiotherapy utilising the DIBH technique were included...
May 14, 2018: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/29773414/hypofractionated-whole-breast-irradiation-with-or-without-boost-in-elderly-patients-clinical-evaluation-of-an-italian-experience
#17
Maria Carmen De Santis, Francesca Bonfantini, Francesca Di Salvo, Alba Fiorentino, Michela Dispinzieri, Mariangela Caputo, Serena Di Cosimo, Gabriella Mariani, Massimiliano Gennaro, Vito Cosentino, Milena Sant, Emanuele Pignoli, Riccardo Valdagni, Laura Lozza
PURPOSE: To examine local control, disease-free survival (DFS), and toxicity in elderly (≥ 65 years) breast cancer patients treated with hypofractionated radiotherapy (hypo-RT) with or without a boost to the tumor bed. PATIENTS AND METHODS: The study was conducted on 752 patients treated from April 2009 to February 2017. Patients received 42.4 Gy in 16 daily fractions (2.65 Gy per fraction). A boost was only administered in cases of grade 3 primary tumor and close or positive margins...
April 22, 2018: Clinical Breast Cancer
https://www.readbyqxmd.com/read/29772993/shoulder-lesion-in-a-69-year-old-woman
#18
Andrew J Hayden, Srinivas Kolla, Adele L Boskey, Steven Burekhovich, Chuanyong Lu, Michael Stracher, Aditya V Maheshwari
Milwaukee Shoulder Syndrome (MSS) is a painful progressive arthropathy in which hydroxyapatite crystal deposition in synovial tissue induces lysosomal release of collagenase and neutral proteases. These enzymes are destructive to periarticular tissue, including the synovium, articular cartilage, rotator cuff muscles, and the intrasynovial cortical bone. MSS predominantly occurring in women (90%) over the age of 70 years of age with a clinical history marked by recurrent joint effusions and pain, which classically worsens at night...
2018: Journal of Long-term Effects of Medical Implants
https://www.readbyqxmd.com/read/29772881/geographic-access-to-radiation-therapy-facilities-and-disparities-of-early-stage-breast-cancer-treatment
#19
Yan Lin, Michael C Wimberly, Patricia Da Rosa, Joseph Hoover, William F Athas
Few studies of breast cancer treatment have focused on the Northern Plains of the United States, an area with a high mastectomy rate. This study examined the association between geographic access to radiation therapy facilities and receipt of breast cancer treatments among early-stage breast cancer patients in South Dakota. Based on 4,209 early-stage breast cancer patients diagnosed between 2001 and 2012 in South Dakota, the study measured geographic proximity to radiation therapy facilities using the shortest travel time for patients to the closest radiation therapy facility...
May 7, 2018: Geospatial Health
https://www.readbyqxmd.com/read/29772621/-a-case-of-choroidal-and-brain-metastases-from-castration-resistant-prostate-cancer
#20
Shuko Yoneyama, Takahiko Watanabe, Tatsuaki Onuki, Kazuro Yabuki, Kotaro Suzuki
Choroidal and central nervous system metastases from prostate cancer are extremely rare. We report a case of choroidal and brain metastases from castration-resistant prostate cancer (CRPC). A 75-year-old male patient with metastatic CRPC presented with a 1-week history of a decrease in visual acuity in his left eye. An ophthalmoscopic examination revealed a choroidal tumor, 4 disc diameters across with serious retinal detachment. He was diagnosed with metastatic choroidal tumor from examination and patient's background...
April 2018: Hinyokika Kiyo. Acta Urologica Japonica
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