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Radiation therapy

F Casas, I Henríquez, A Bejar, X Maldonado, A Alvarez, C González-Sansegundo, A Boladeras, F Ferrer, A Hervás, I Herruzo, M Caro, I Rodriguez, C Ferrer
PURPOSE: We compared biochemical control and quality of life with intermittent (6 months) versus continuous (36 months) androgen deprivation therapy (ADT) in a non-inferiority randomized phase 3 trial in patients with biochemical failure (BF) after external beam radical radiotherapy (EBRT). MATERIALS AND METHODS: Patients were stratified according to the Gleason score (GS) and were classified as low risk with a GS < 6 and 7 (3 + 4) and high risk with a GS of 7 (4 + 3) and >7...
October 21, 2016: Clinical & Translational Oncology
Alice Indini, Elisabetta Schiavello, Veronica Biassoni, Luca Bergamaschi, Maria Chiara Magni, Nadia Puma, Stefano Chiaravalli, Federica Pallotti, Ettore Seregni, Barbara Diletto, Emilia Pecori, Lorenza Gandola, Geraldina Poggi, Maura Massimino
To assess the long-term safety of administering growth hormone (GH) in patients with GH deficiency due to treatment for childhood medulloblastoma and primitive neuroectodermal tumor (PNET). Data were retrospectively retrieved on children receiving GH supplementation, assessing their disease-free and overall survival outcomes and risk of secondary malignancies using Kaplan-Meier and Cox models. Overall 65 children were consecutively collected from May 1981 to April 2013. All patients had undergone craniospinal irradiation (total dose 18-39 Gy), and subsequently received GH for a median (interquartile range, IQR) of 81 (50...
October 21, 2016: Journal of Neuro-oncology
Giulia Marvaso, Barbara Vischioni, Barbara Alicja Jereczek-Fossa, Delia Ciardo, Piero Fossati, Tommaso Giandini, Sara Morlino, Mauro Carrara, Paola Romanelli, Elvio Russi, Francesca Valvo, Riccardo Valdagni, Roberto Orecchia
Hadrontherapy has been in constant progress in the past decades. Due to the increasing interest in this field and the spreading of the technique in Italy and worldwide, the Italian Society of Radiation Oncology surveyed (by an online survey) its members regarding their perception of hadrontherapy. The survey outline addressed different items all related to hadrontherapy, such as: demographics (3 items), personal knowledge (5 items), actual use in clinical practice (5 items), and future perspectives and development (5 items)...
October 21, 2016: La Radiologia Medica
Antony George Francis Thottian, Sushmita Pathy, Ajeet Kumar Gandhi, Prabhat Malik, Aruna Nambirajan
Small cell lung cancer (SCLC) is known for its metastatic potential. The most common sites are liver, adrenal, bone and brain. We report a case of a 37year old female patient, diagnosed with SCLC, presenting with gingival metastasis, an unusual metastatic site. Radiation therapy to the metastatic lesion to a dose of 20 Gray in 5 fractions over 5days was delivered which achieved haemostasis and good palliation. However, the patient expired in 2months owing to systemic metastasis.
October 18, 2016: Journal of the Egyptian National Cancer Institute
J-E Bibault, A Pernet, V Mollo, L Gourdon, O Martin, P Giraud
PURPOSE: With the increase of treatment complexity, enhancing safety is a key concern in radiation oncology. Beyond the involvement of the healthcare professional, patient involvement and empowerment could play a major role in that setting. We explored how patients perceived and fulfilled that role during their radiation treatment. MATERIALS AND METHODS: A voluntary and anonymous questionnaire was administered to all patients treated in our department between November 2013 and May 2014...
October 18, 2016: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
Jeong-Eun Rah, Gwe-Ya Kim, Do Hoon Oh, Tae Hyun Kim, Jong Won Kim, Dae Yong Kim, Sung Yong Park, Dongho Shin
BACKGROUND: The purpose of this study is to evaluate the dosimetric benefits of a proton arc technique for treating tumors of the para-aortic lymph nodes (PALN). METHOD: In nine patients, a proton arc therapy (PAT) technique was compared with intensity modulated radiation therapy (IMRT) and proton beam therapy (PBT) techniques with respect to the planning target volume (PTV) and organs at risk (OAR). PTV coverage, conformity index (CI), homogeneity index (HI) and OAR doses were compared...
October 21, 2016: Radiation Oncology
Gokoulakrichenane Loganadane, Florent Martinetti, Olaf Mercier, Samar Krhili, François-Georges Riet, Rodrigue Mbagui, Hanh To, Cécile Le Péchoux, Antonin Levy
Stereotactic ablative radiation therapy (SABR) has become the standard treatment for peripheral medically non-operable patients with early stage non-small cell lung cancer (NSCLC). Previous attempts of trials to compare SABR and surgery have failed and new randomized studies (SABRtooth, STABLEMATES, and VALOR) are ongoing. While predictive factors of relapse have been extensively studied in patients receiving surgery, there is scarce data on such putative factors in SABR patients. The purpose of this review is to analyze such predictive factors through a critical review of the literature...
October 13, 2016: Cancer Treatment Reviews
Vivian L Bishay, Derek M Biederman, Thomas J Ward, Imramsjah Martijn J van der Bom, Rahul S Patel, Edward Kim, Francis S Nowakowski, Robert A Lookstein, Aaron M Fischman
OBJECTIVE: The transradial approach (TRA) has been shown to reduce the morbidity and mortality associated with arterial coronary interventions. Selective internal radiation therapy (SIRT) performed via the TRA can enhance patient comfort, compared with the traditional transfemoral approach (TFA), by allowing immediate ambulation and precluding potential complications associated with the TFA, such as closure device injury or retroperitoneal hematoma. We report our initial experience with and technique for using the TRA for SIRT...
November 2016: AJR. American Journal of Roentgenology
Kai-Che Wei, Kuo-Chung Yang, Lee-Wei Chen, Wen-Chung Liu, Wen-Chieh Chen, Wen-Yen Chiou, Ping-Chin Lai
With increasing use of cardiac fluoroscopic intervention, the incidence of fluoroscopy-induced radiation ulcer is increasing. Radiation ulcer is difficult to manage and currently there are no treatment guidelines. To identify the optimal treatment approaches for managing cardiac fluoroscopy-induced radiation ulcers, we retrospectively reviewed medical records of 13 patients with fluoroscopy-induced radiation ulcers receiving surgical interventions and following up in our hospital from 2012 to 2015. Conventional wound care and hyperbaric oxygen therapy were of little therapeutic benefit...
October 21, 2016: Scientific Reports
Hideomi Yamashita, Ryousuke Takenaka, Kae Okuma, Kuni Ootomo, Keiichi Nakagawa
BACKGROUND: A prospective study was performed on the use of chemoradiotherapy (CRT) for esophageal cancer (EC) with involved-field radiation therapy (IFRT), based on 18-fluorodeoxyglucose positron-emission tomography. Prognostic factors for overall survival (OS) were analyzed. METHODS: Eligible patients included 63 adults with newly diagnosed, untreated, inoperable stage I-IV EC with lymph node metastases. Patients received 80 mg/m(2) nedaplatin per day on day 1, 800 mg/m(2) 5-fluorouracil on days 1-4 intravenously repeated every 28 days for two to four cycles, and combined IFRT...
September 2016: Thoracic Cancer
David Y Lee, Annabelle Teng, Rose C Pedersen, Farees R Tavangari, Vikram Attaluri, Elisabeth C McLemore, Stacey L Stern, Anton J Bilchik, Melanie R Goldfarb
INTRODUCTION: Stage II-III rectal cancer requires multidisciplinary cancer care, and adolescents and young adults (AYA, ages 15-39 years) often do not receive optimal cancer therapy. METHODS: Overall, 3295 AYAs with clinical stage II-III rectal cancer were identified in the National Cancer Database. Factors associated with the receipt of adjuvant and surgical therapies, as well as overall survival (OS), were examined. RESULTS: The majority of patients were non-Hispanic White (72...
October 20, 2016: Annals of Surgical Oncology
Melissa Pilewskie, Cristina Olcese, Sujata Patil, Kimberly J Van Zee
BACKGROUND: Identifying DCIS patients at low risk for disease progression could obviate need for standard therapy. The LORIS (surgery versus active monitoring for low-risk DCIS) trial is studying the safety of monitoring low-risk DCIS, although ipsilateral breast tumor recurrence (IBTR) rates in patients meeting enrollment criteria after complete surgical excision are unknown. METHODS: Women with pure DCIS treated with breast-conserving surgery (BCS) with/without radiation therapy (RT) from 1/1996-1/2011 were included from a prospectively maintained database...
October 20, 2016: Annals of Surgical Oncology
Yasin Gocgun
We study radiation therapy scheduling problem where dynamically and stochastically arriving patients of different types are scheduled to future days. Unlike similar models in the literature, we consider cancellation of treatments. We formulate this dynamic multi-appointment patient scheduling problem as a Markov Decision Process (MDP). Since the MDP is intractable due to large state and action spaces, we employ a simulation-based approximate dynamic programming (ADP) approach to approximately solve our model...
October 20, 2016: Health Care Management Science
Annabelle South, Wendy R Parulekar, Matthew R Sydes, Bingshu E Chen, Mahesh K Parmar, Noel Clarke, Padraig Warde, Malcolm Mason
BACKGROUND: Recent trials have shown that the addition of external beam radiotherapy (EBRT) to androgen deprivation therapy (ADT) improves survival among men with locally advanced prostate cancer. OBJECTIVE: To examine the potential impact of these trials on changes in clinical practice and life-years saved. DESIGN SETTING AND PARTICIPANTS: A model was developed to examine the impact of changes in clinical practice in the UK. A survey of clinicians who treat men with prostate cancer in the UK and Canada was performed...
August 2016: European Urology Focus
Tatsuaki Daimon, Takeo Kosaka, Mototsugu Oya
Docetaxel chemotherapy for metastatic castration resistant prostate cancer patients has been thought palliative because the radiological response rate is low and durable response is rare. The patient was a 64-year-old man who was diagnosed with cT3aN0M0 prostate cancer and underwent external beam radiation therapy as the initial treatment. He underwent androgen deprivation therapy and 8 cycles of docetaxel chemotherapy. His PSA level decreased and became undetectable and the disease was confirmed to be stable by radiological examination...
2016: American Journal of Clinical and Experimental Urology
Britta Langen, Nils Rudqvist, Khalil Helou, Eva B Forssell-Aronsson
INTRODUCTION: Targeted α-therapy is a promising treatment option for various types of malignant tumors. Radiolabeled cancer-seeking agents, however, undergo degradation resulting in a certain percentage of free radionuclide in the body. The radiohalogen (211)At accumulates in various tissues with specifically high uptake in the thyroid. When normal thyroid function is disturbed due to ionizing radiation (IR) exposure, deleterious effects can occur in tissues that depend on thyroid hormone (TH) regulation for normal physiological function...
October 20, 2016: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
Kihong Son, Jin Sung Kim, Hoyeon Lee, Seungryong Cho
This study investigates dose distribution due to kV cone-beam computed tomography (CBCT) for the patients undergoing CBCT-based image-guided radiation therapy (IGRT). The kV-CBCT provides an efficient image-guidance tool for acquiring the latest volumetric image of a patient's anatomy, and has been being routinely used in clinics for an accurate treatment setup. Imaging radiation doses resulting from six different acquisition protocols of the on-board imager (OBI) were calculated using a Geant4 Application for Tomographic Emission (GATE) Monte Carlo simulation toolkit, and the absorbed doses by various organs were analyzed for the adult and pediatric numerical XCAT phantoms in this study...
October 20, 2016: Radiation Protection Dosimetry
Kemal Ekici, Eda K Pepele, Bahaddin Yaprak, Oztun Temelli, Aysun F Eraslan, Nadir Kucuk, Ayse Y Altınok, Pelin A Sut, Ozlem D Alpak, Cemil Colak, Alpaslan Mayadagli
Various radiotherapy planning methods for T1N0 laryngeal cancer have been proposed to decrease normal tissue toxicity. We compare helical tomotherapy (HT), linac-based intensity-modulated radiation therapy (IMRT), volumetric-modulated arc therapy (VMAT), and 3-D conformal radiotherapy (3D-CRT) techniques for T1N0 laryngeal cancer. Overall, 10 patients with T1N0 laryngeal cancer were selected and evaluated. Furthermore, 10 radiotherapy treatment plans have been created for all 10 patients, including HT, IMRT, VMAT, and 3D-CRT...
October 17, 2016: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
Adepitan A Owosho, SaeHee K Yom, Zhiqiang Han, Kevin Sine, Nancy Y Lee, Joseph M Huryn, Cherry L Estilo
OBJECTIVE: The purpose of this study was to compare the dosimetric distribution of ipsilateral proton beam radiation therapy (PBRT) with intensity-modulated radiation therapy (IMRT) in the tooth-bearing region of the mandible in patients with head and neck cancer (HNC). STUDY DESIGN: The mandibular dosimetric distribution in patients with head and neck cancer treated with ≥60 Gy relative biologic equivalent PBRT was evaluated. The mean radiation doses were calculated in 5 regions: ipsilateral molar, ipsilateral premolar, anterior, contralateral premolar, and contralateral molar (CM) regions...
November 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
C Mozet, T Kuhnt, B Sattler, J Remmele, U Thome, H Stepan, R Kluge, A Dietz, M Knoedler
Objective: The diagnosis of cancer in pregnancy is rare, but might become more relevant even for head and neck cancer patients due to a shift of age of primipara towards the last third of reproductive years. Unsureness exists about the risk and benefit of diagnostic and therapeutic cancer modalities for the unborn and established recommendations are still missing. But, according to recent data, even multimodal therapeutic approaches (e. g. surgery, radiation, chemotherapy) seem possible in face of pregnancy and should be traded against the risk of prematurity...
October 2016: Laryngo- Rhino- Otologie
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