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https://www.readbyqxmd.com/read/28643755/prognostic-significance-of-tumor-volume-as-determined-on-3d-ultrasound-scan-in-uterine-cervix-cancer-treated-by-radiotherapy
#1
Shelly Srivastava, Surendra Kumar Saini, Awadhesh Kumar Dixit, Deepti Dwivedi
AIMS: The aim of this prospective study is to evaluate prognostic significance of tumor volume determined by three-dimensional (3D) ultrasound scan in uterine cervix cancer patients treated by radiotherapy. PATIENTS AND METHODS: A total of 67 patients of Stage IB2-IIIB were studied and analyzed. Cervical tumor volume was determined by 3D ultrasound scan. Two groups were made on the basis of volume on ultrasound scan (Group 1 <40 cc = 36 and Group 2 >40 cc = 31)...
April 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28643745/adjuvant-hypofractionated-radiation-in-carcinoma-breast-photon-versus-electron-comparison-of-treatment-outcome
#2
G Prameela Chelakkot, Rahul Ravind, K Sruthi, Namrata Chigurupati, Sanketh Kotne, Raghavendra Holla, Ram Madhavan, M Dinesh
BACKGROUND: Breast cancer tissue is sensitive to hypofractionation. This is an analysis of patients treated with hypofractionated protocols since 2009, at our tertiary cancer center. METHODS: Details of breast cancer patients treated with adjuvant hypofractionated external beam radiation therapy (EBRT) from January 2009 to December 2014 were retrieved and analyzed. RESULTS: One thousand seven hundred and eighty patients received adjuvant EBRT during this period...
April 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28643452/emerging-nanotechnology-and-advanced-materials-for-cancer-radiation-therapy
#3
REVIEW
Guosheng Song, Liang Cheng, Yu Chao, Kai Yang, Zhuang Liu
Radiation therapy (RT) including external beam radiotherapy (EBRT) and internal radioisotope therapy (RIT) has been widely used for clinical cancer treatment. However, owing to the low radiation absorption of tumors, high doses of ionizing radiations are often needed during RT, leading to severe damages to normal tissues adjacent to tumors. Meanwhile, the RT efficacies are limited by different mechanisms, among which the tumor hypoxia-associated radiation resistance is a well-known one, as there exists hypoxia inside most solid tumors while oxygen is essential to enhance radiation-induced DNA damages...
June 23, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28638669/external-beam-radiation-and-brachytherapy-for-prostate-cancer-is-it-a-possible-trigger-of-large-cell-neuroendocrine-carcinoma-of-the-urinary-bladder
#4
Ali Zakaria, Bayan Al Share, Sri Kollepara, Cynthia Vakhariya
Neuroendocrine tumors commonly involve the respiratory and gastrointestinal systems. Primary genitourinary neuroendocrine tumors are rare, accounting for less than 1% of all bladder carcinomas. Four histopathologic subtypes have been described. Among those, large cell neuroendocrine carcinoma (LCNEC) is the least common, is more aggressive, and generally presents in an advanced stage with poor prognosis compared to transitional cell bladder carcinoma. There is no standardized treatment regimen because of the rarity of the disease...
2017: Case Reports in Oncological Medicine
https://www.readbyqxmd.com/read/28633781/beaming-in-charcot-arthropathy-intramedullary-fixation-for%C3%A2-complicated-reconstructions-a-cadaveric-study
#5
Corey M Fidler, Benjamin C Watson, Christopher W Reb, Christopher F Hyer
In the modern treatment of Charcot neuroarthropathy, beam screw fixation is an alternative to plate and screw fixation. Exposure is minimized for implantation, and this technique supports the longitudinal columns of the foot as a rigid load-sharing construct. A published data review identified a paucity of data regarding metatarsal intramedullary canal morphology relevant to beam screw fixation. The purpose of the present study was to describe metatarsal diaphyseal morphology qualitatively and quantitatively in an effort to provide data that can be used by surgeons when selecting axially based intramedullary fixation...
July 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28631720/contemporary-management-of-men-with-high-risk-localized-prostate-cancer-in-the-united-states
#6
A B Weiner, R S Matulewicz, E M Schaeffer, S L Liauw, J M Feinglass, S E Eggener
BACKGROUND: Surgery and radiation-based therapies are standard management options for men with clinically localized high-risk prostate cancer (PCa). Contemporary patterns of care are unknown. We hypothesize the use of surgery has steadily increased in more recent years. METHODS: Using the National Cancer Data Base for 2004-2013, all men diagnosed with high-risk localized PCa were identified using National Comprehensive Cancer Network criteria. Temporal trends in initial management were assessed...
June 20, 2017: Prostate Cancer and Prostatic Diseases
https://www.readbyqxmd.com/read/28626920/experimental-verification-of-egsnrc-monte-carlo-calculated-depth-doses-within-a-realistic-parallel-magnetic-field-in-a-polystyrene-phantom
#7
Andrei Ghila, Stephen Steciw, B Gino Fallone, Satyapal Rathee
PURPOSE: Integrating a linac with a magnetic resonance imager (MRI) will revolutionize the accuracy of external beam radiation treatments. Irradiating in the presence of a strong magnetic field, however, will modify the dose distribution. These dose modifications have been investigated previously, mainly using Monte Carlo simulations. The purpose of this work is to experimentally verify the use of the EGSnrc Monte Carlo (MC) package for calculating percent depth doses (PDDs) in a homogeneous phantom, in the presence of a realistic parallel magnetic field...
June 19, 2017: Medical Physics
https://www.readbyqxmd.com/read/28625534/predictors-of-urinary-and-rectal-toxicity-after-external-conformed-radiation-therapy-in-prostate-cancer-correlation-between-clinical-tumour-and-dosimetric-parameters-and-radical-and-postoperative-radiation-therapy
#8
C M Martínez-Arribas, C González-San Segundo, P Cuesta-Álvaro, F A Calvo-Manuel
OBJECTIVE: To determine rectal and urinary toxicity after external beam radiation therapy (EBRT), assessing the results of patients who undergo radical or postoperative therapy for prostate cancer (pancreatic cancer) and their correlation with potential risk factors. METHOD: A total of 333 patients were treated with EBRT. Of these, 285 underwent radical therapy and 48 underwent postoperative therapy (39 cases of rescue and 9 of adjuvant therapy). We collected clinical, tumour and dosimetric variable to correlate with toxicity parameters...
June 15, 2017: Actas Urologicas Españolas
https://www.readbyqxmd.com/read/28624835/cbct-location-of-the-fusion-between-the-buccal-and-lingual-cortical-in-the-mandibular-ramus-importance-to-sagittal-split-osteotomy
#9
L Scomparin, M-Q-S Soares, C-M-F Rubira, R-Y-F Yaedú, T-S-N Imada, B-S Centurion, E-S Tolentino, J-R-P Lauris, I-R-F Rubira-Bullen
BACKGROUND: Mandibular Sagittal Split Osteotomy (MSSO) is a popular technique in orthognathic surgery used both to advance and to retreat the mandible. However, MSSO may incur in important complications, such as bad splits and sensorineural injuries. Knowing the location of the fusion between the buccal and lingual cortical (FBLC) in the mandibular ramus and the bone thickness in the region where osteotomies will be performed is determinant in MSSO planning to avoid complications. The aim of this study was to document and evaluate possible differences between sexes regarding the location of the FBLC in relation to the superior cortical of mandibular foramen (MF) and bone thickness in the region of interest for MSSO in a Brazilian population...
June 18, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28621619/histopathological-prognostic-factors-of-recurrence-following-definitive-therapy-for-atypical-and-malignant-meningiomas
#10
Daniel Kim, Andrzej Niemierko, William L Hwang, Anat O Stemmer-Rachamimov, William T Curry, Fred G Barker, Robert L Martuza, Kevin S Oh, Jay S Loeffler, Helen A Shih
OBJECTIVE Patients with atypical and malignant (WHO Grade II and III) meningiomas have a worse prognosis than patients with benign (WHO Grade I) meningiomas. However, there is limited understanding of the pathological risk factors that affect long-term tumor control following combined treatment with surgery and radiation therapy. Here, the authors identify clinical and histopathological risk factors for the progression and/or recurrence (P/R) of high-grade meningiomas based on the largest series of patients with atypical and malignant meningiomas, as defined by the 2007 WHO classification...
June 16, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28620815/radiation-related-toxicities-and-outcomes-in-endometrial-cancer-are-obese-women-at-a-disadvantage
#11
A Smits, J McGrane, A Lopes, E Kent, R Bekkers, L Massuger, N Simpson, K Galaal
OBJECTIVE: To assess the impact of body mass index (BMI) on radiotherapy toxicities in endometrial cancer patients. METHODS: This was a retrospective cohort study of women diagnosed with endometrial cancer between January 2006 and December 2014 at the Royal Cornwall Hospital Trust. Women who received radiotherapy as part of their treatment, including external beam radiotherapy (EBRT) and/or vaginal brachytherapy were included. Radiation-related toxicities were graded according to the Radiation Therapy Oncology Group (RTOG) guidelines...
June 15, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28620751/impact-of-a-rectal-and-bladder-preparation-protocol-on-prostate-cancer-outcome-in-patients-treated-with-external-beam-radiotherapy
#12
A Maggio, D Gabriele, E Garibaldi, S Bresciani, E Delmastro, A Di Dia, A Miranti, M Poli, T Varetto, M Stasi, P Gabriele
PURPOSE AND OBJECTIVE: To test the hypothesis that a rectal and bladder preparation protocol is associated with an increase in prostate cancer specific survival (PCSS), clinical disease free survival (CDFS) and biochemical disease free survival (BDFS). PATIENTS AND METHODS: From 1999 to 2012, 1080 prostate cancer (PCa) patients were treated with three-dimensional conformal radiotherapy (3DCRT). Of these patients, 761 were treated with an empty rectum and comfortably full bladder (RBP) preparation protocol, while for 319 patients no rectal/bladder preparation (NRBP) protocol was adopted...
June 15, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28619756/alpha-particle-enhanced-blood-brain-tumor-barrier-permeabilization-in-glioblastomas-using-integrin-alpha-v-beta-3-targeted-liposomes
#13
Anirudh Sattiraju, Xiaobing Xiong, Darpan N Pandya, Thaddeus J Wadas, Ang Xuan, Yao Sun, Youngkyoo Jung, Kiran Kumar Solingapuram Sai, Jay F Dorsey, King C Li, Akiva Mintz
<span style="font-size: 11.0pt; line-height: 200%; color: windowtext;">Glioblastoma (GBM) is the most common primary malignant astrocytoma characterized by extensive invasion, angiogenesis, hypoxia and micrometastasis. Despite the relatively leaky nature of GBM blood vessels, effective delivery of anti-tumor therapeutics has been a major challenge due to the complications caused by the blood brain barrier (BBB) and the highly torturous nature of newly formed tumor vasculature (blood tumor barrier-BTB)...
June 15, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28619396/robot-assisted-laparoscopic-implantation-of-brachytherapy-catheters-in-bladder-cancer
#14
Judith Bosschieter, André N Vis, Henk G van der Poel, Luc M Moonen, Simon Horenblas, Bas W G van Rhijn, Bradley R Pieters, Jakko A Nieuwenhuijzen, Kees Hendricksen
BACKGROUND: Robot-assisted laparoscopic (RAL) implantation of brachytherapy catheters (BTCs) can be a minimally invasive alternative to open retropubic implantation. Descriptions of the surgical technique and outcomes are sparse. OBJECTIVE: To describe our technique and perioperative outcomes for RAL BTC implantation in urothelial carcinoma (UC) and urachal carcinoma (UraC). DESIGN, SETTING AND PARTICIPANTS: Between June 2011 and May 2016, 26 patients with cN0M0 solitary T1G3 or T2G1-3 UC of ≤5cm or cN0M0 UraC were scheduled for external beam radiotherapy (20×2Gy), RAL BTC implantation, and pulsed-dose (29×1...
June 12, 2017: European Urology
https://www.readbyqxmd.com/read/28618498/magnetohydrodynamics-of-laser-produced-high-energy-density-plasma-in-a-strong-external-magnetic-field
#15
Kazuki Matsuo, Hideo Nagatomo, Zhe Zhang, Philippe Nicolai, Takayoshi Sano, Shohei Sakata, Sadaoki Kojima, Seung Ho Lee, King Fai Farley Law, Yasunobu Arikawa, Youichi Sakawa, Taichi Morita, Yasuhiro Kuramitsu, Shinsuke Fujioka, Hiroshi Azechi
Recent progress in the generation in the laboratory of a strong (>100-T) magnetic field enables us to investigate experimentally unexplored magnetohydrodynamics phenomena of a high-energy-density plasma, which an external magnetic field of 200-300 T notably affects due to anisotropic thermal conduction, even when the magnetic field pressure is much lower than the plasma pressure. The external magnetic field reduces electron thermal conduction across the external magnetic field lines because the Larmor radius of the thermal electrons in the external magnetic field is much shorter than the mean free path of the thermal electrons...
May 2017: Physical Review. E
https://www.readbyqxmd.com/read/28618234/successful-treatment-of-acute-radiation-proctitis-with-aloe-vera-a-preliminary-randomized-controlled-clinical-trial
#16
Adeleh Sahebnasagh, Arash Ghasemi, Jafar Akbari, Abbas Alipour, Hossein Lashkardoost, Shahram Ala, Ebrahim Salehifar
BACKGROUND: Acute radiation proctitis (ARP) is a common side-effect that affects up to 50% of patients receiving radiotherapy. The aim of this study was to evaluate the role of a topical preparation of Aloe vera in the treatment of ARP induced by radiotherapy of pelvic area. SUBJECTS AND INTERVENTIONS: In this double-blind placebo-controlled trial, 20 consecutive patients with ARP after external-beam radiation therapy (46-72 Gy) of pelvic malignancies were randomized to receive either Aloe vera 3% or placebo ointment, 1 g twice daily for 4 weeks...
June 15, 2017: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
https://www.readbyqxmd.com/read/28616295/malignant-tracheal-necrosis-and-fistula-formation-following-palliative-chemoradiotherapy-a-case-report
#17
In Ae Kim, Hyeon Kang Koh, Sun Jong Kim, Kwang Ha Yoo, Kye Young Lee, Hee Joung Kim
Concurrent chemoradiotherapy is an essential treatment strategy for inoperable locally advanced non-small cell lung cancer (NSCLC). Although supportive care has improved, unexpected complications due to the disease or treatment can occur. Tracheomediastinal fistulas are very rare but can be a serious problem. Herein, we report a case of severe chondronecrosis of the distal trachea with formation of a fistula into a metastatic lymphadenopathy in a patient with stage IIIB NSCLC. The patient received external beam radiotherapy with a total dose of 35 Gy in 14 fractions, which was approximately half of the conventional therapeutic radiotherapy dose, along with concurrent cisplatin based chemotherapy...
May 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28615058/long-term-prognostic-significance-of-rising-psa-levels-following-radiotherapy-for-localized-prostate-cancer-focus-on-overall-survival
#18
Carla Freiberger, Vanessa Berneking, Thomas-Alexander Vögeli, Ruth Kirschner-Hermanns, Michael J Eble, Michael Pinkawa
BACKGROUND: The aim of this study was to evaluate the long-term prognostic significance of rising PSA levels, particularly focussing on overall survival. METHODS: Two hundred ninety-five patients with localized prostate cancer were either treated with low-dose-rate (LDR) brachytherapy with I-125 seeds as monotherapy (n = 94; 145Gy), high-dose-rate (HDR) brachytherapy with Ir-192 as a boost to external beam RT (n = 66; 50.4Gy in 1.8Gy fractions EBRT + 18Gy in 9Gy fractions HDR) or EBRT alone (70...
June 14, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28614035/personalized-care-of-patients-with-adrenocortical-carcinoma-a-comprehensive-approach
#19
Barbra S Miller, Tobias Else
A concerted effort has been made in the past decade to better differentiate benign from malignant adrenocortical tumors. Of those tumors found to be adrenocortical carcinomas (ACCs) and through the use of multiple modalities including biochemical, radiologic, and genomic analysis, significant strides have been made in understanding what drives ACC development, how various treatments may result in different outcomes, which ACCs are more likely to respond to various treatments, and overall prognosis. While most patients will have recurrence of their ACC and succumb to their disease, the disease course is highly variable; it is therefore imperative that each patient is treated with individualized attention paid to their particular ACC...
June 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28613934/standard-fractionation-external-beam-radiotherapy-with-and-without-intraoperative-radiotherapy-for-locally-recurrent-rectal-cancer-the-role-of-local-therapy-in-patients-with-a-high-competing-risk-of-death-from-distant-disease
#20
Amar U Kishan, Justin C Voog, Jonathan Wiseman, Ryan R Cook, Marek Ancukiewicz, Percy Lee, David P Ryan, Jeffrey W Clark, David L Berger, James C Cusack, Jennifer Y Wo, Theodore S Hong
OBJECTIVES: We sought to evaluate the effectiveness and safety of utilizing radiotherapy (RT) with standard fractionation, with or without intraoperative radiotherapy (IORT), to treat locally recurrent rectal cancer (LRRC). METHODS: Retrospective review of 25 patients with LRRC treated with standard fractionation RT from 2005-2011. Fifteen patients (60%) had prior pelvic RT and ten (40%) had synchronous metastases. The median equivalent dose in 2 Gy fractions was 30 Gy and 49...
June 14, 2017: British Journal of Radiology
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