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Reirradiation

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https://www.readbyqxmd.com/read/29306203/use-of-pulsed-low-dose-rate-radiotherapy-in-refractory-malignancies
#1
Jing Yan, Ju Yang, Yang Yang, Wei Ren, Juan Liu, Shanbao Gao, Shuangshuang Li, Weiwei Kong, Lijing Zhu, Mi Yang, Xiaoping Qian, Baorui Liu
BACKGROUND: Most tumor cell lines exhibited low-dose hyperradiosensitivity (LDHRS) to radiation doses lower than 0.3 Gy. Pulsed low-dose rate radiotherapy (PLDR) took advantage of LDHRS and maximized the tumor control process. In this study, we retrospectively analyzed patients receiving PLDR for refractory malignancies. PATIENTS AND METHODS: In total, 22 patients were included in our study: 9 females and 13 males. The median age was 61 years old. All the patients previously received multiline treatments and failed with an estimated survival less than 6 months...
January 3, 2018: Translational Oncology
https://www.readbyqxmd.com/read/29280457/reirradiation-for-recurrent-pediatric-central-nervous-system-malignancies-a-multi-institutional-review
#2
Avani D Rao, Arif S Rashid, Qinyu Chen, Rosangela C Villar, Daria Kobyzeva, Kristina Nilsson, Karin Dieckmann, Alexey Nechesnyuk, Ralph Ermoian, Sara Alcorn, Shannon M MacDonald, Matthew M Ladra, Eric C Ford, Brian A Winey, Maria Luisa S Figueiredo, Michael J Chen, Stephanie A Terezakis
PURPOSE: Reirradiation has been proposed as an effective modality for recurrent central nervous system (CNS) malignancies in adults. We evaluated the toxicity and outcomes of CNS reirradiation in pediatric patients. METHODS AND MATERIALS: The data from pediatric patients <21 years of age at the initial diagnosis who developed a recurrent CNS malignancy that received repeat radiation therapy (RT) across 5 facilities in an international pediatric research consortium were retrospectively reviewed...
November 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29275869/image-guided-interstitial-high-dose-rate-brachytherapy-for-locally-recurrent-uterine-cervical-cancer-a-single-institution-study
#3
Rei Umezawa, Naoya Murakami, Satoshi Nakamura, Akihisa Wakita, Hiroyuki Okamoto, Keisuke Tsuchida, Tairo Kashihara, Kazuma Kobayashi, Ken Harada, Kana Takahashi, Koji Inaba, Yoshinori Ito, Hiroshi Igaki, Koji Masui, Ken Yoshida, Keiichi Jingu, Nikolaos Tselis, Jun Itami
PURPOSE: The aim of this study was to investigate the efficacy and safety of image-guided high-dose-rate (HDR) interstitial brachytherapy (ISBT) for reirradiation of locally recurrent uterine cervical cancer. METHODS AND MATERIALS: Between 2008 and 2015, patients receiving reirradiation using HDR-ISBT for local gross recurrence of uterine cervical cancer after definitive or postoperative radiotherapy were analyzed retrospectively. The prescription doses per fraction ranged 2...
December 21, 2017: Brachytherapy
https://www.readbyqxmd.com/read/29273890/subventricular-zone-involvement-at-recurrence-is-a-strong-predictive-factor-of-outcome-following-high-grade-glioma-reirradiation
#4
J Attal, L Chaltiel, V Lubrano, J C Sol, C Lanaspeze, L Vieillevigne, I Latorzeff, E Cohen-Jonathan Moyal
We aimed to assess the efficacy of stereotactic irradiation for patients with recurrent high-grade glioma (HGG) and identify predictive factors of progression-free survival (PFS) and overall survival (OS) following reirradiation. We identified 32 patients with recurrent brain HGG who had been treated with either single-dose (stereotactic radiosurgery) or fractionated stereotactic radiotherapy between April 2008 and October 2015. Median follow up was 21.4 months (range 12.9-23.2) and median PFS was and 3.3 months (95% CI [2...
December 22, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29249780/palliative-reirradiation-for-painful-bone-metastases-clinical-cases-and-literature-review
#5
Gen Suzuki, Hideya Yamazaki, Norihiro Aibe, Koji Masui, Naomi Sasaki, Kotoha Tatekawa, Daisuke Shimizu, Takuya Kimoto, Takeshi Nishimura, Akihiro Nakashima, Kei Yamada
Reirradiation to previously irradiated peripheral bone metastases for pain has been shown to be safe and effective, but no specific trial has been completed to define the indications for reirradiation of patients with recurrent symptoms of metastatic bone disease. Thus, we aimed to assess the effectiveness and prognostic factors of reirradiation for painful bone metastases. To do so, we reviewed the cases of 14 patients with painful bone metastases who had undergone reirradiation at our hospital. A favorable pain response after reirradiation wasachieved in 50% (7/14) of the patients...
December 15, 2017: Kurume Medical Journal
https://www.readbyqxmd.com/read/29229328/outcomes-after-reirradiation-for-recurrent-pediatric-intracranial-ependymoma
#6
Derek S Tsang, Elizabeth Burghen, Paul Klimo, Frederick A Boop, David W Ellison, Thomas E Merchant
PURPOSE: To determine the long-term outcomes and the optimal dose and volume for reirradiation of recurrent pediatric ependymoma. METHODS AND MATERIALS: Patients with recurrent ependymoma treated with a second course of fractionated radiation therapy (RT2) were reviewed retrospectively. Eligible patients had localized, intracranial ependymoma at initial diagnosis that was treated with focal radiation (RT1) without craniospinal irradiation (CSI) and were aged ≤21 years at the time of RT2...
October 13, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29217134/reirradiation-with-concurrent-bevacizumab-for-recurrent-high-grade-gliomas-in-adult-patients
#7
A Schernberg, F Dhermain, S Ammari, S N Dumont, J Domont, A Patrikidou, J Pallud, É Dezamis, É Deutsch, G Louvel
PURPOSE: To analyse feasibility, prognostic factors and patterns of recurrence after concurrent reirradiation and bevacizumab for recurrent high-grade gliomas. PATIENTS AND METHODS: Between 2009 and 2015, 35 patients (median 57-year-old; 21 men, 14 women) with WHO grade III (n=11) or grade IV (n=24) gliomas were included in this retrospective and consecutive single-centre study. All patients received bevacizumab (median number of treatments: 12) concomitant with reirradiation (median dose: 45Gy, median number of fractions: 18) for recurrence with median 22 months (range: 5...
December 4, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/29204840/survival-outcomes-in-pediatric-recurrent-high-grade-glioma-results-of-a-20-year-systematic-review-and-meta-analysis
#8
Cassie Kline, Erin Felton, I Elaine Allen, Peggy Tahir, Sabine Mueller
Recurrent pediatric high-grade glioma is a leading cause of cancer-related death in children. We report results of a systematic review and meta-analysis investigating survival outcome in pediatric patients with recurrent high-grade glioma over the last 20 years. MEDLINE/PubMed, EMBASE, Web of Science and Cochrane Review databases were searched for relevant studies reporting on survival outcomes for pediatric patients with recurrent high-grade glioma treated between 1996 and 2016. Progression-free survival (PFS) and overall survival (OS) were calculated cumulatively over all studies, by therapy subgroup, and by decade of treatment...
December 4, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29174938/plesiobrachytherapy-for-chest-wall-recurrences-of-breast-cancer-after-mastectomy-and-radiotherapy-for-breast-cancer
#9
Nadia Besson, Christophe Hennequin, Sophie Guillerm, Ingrid Fumagalli, Valentine Martin, Sophie Michaud, Luis Texeira, Laurent Quero
PURPOSE: The purpose of the study was to evaluate the results of high-dose-rate plesiobrachytherapy for local relapse after mastectomy and radiotherapy in terms of both local control and survival. METHODS: We reviewed retrospectively 43 patients who experienced a chest wall relapse of breast cancer after local excision (22 patients) or not (21 patients). Patients were treated with an individually designed mold with four to six fractions of 3-6 Gy high-dose-rate brachytherapy, two fractions per week...
November 23, 2017: Brachytherapy
https://www.readbyqxmd.com/read/29173756/proton-therapy-for-head-and-neck-cancers
#10
REVIEW
Pierre Blanchard, Gary Brandon Gunn, Alexander Lin, Robert L Foote, Nancy Y Lee, Steven J Frank
Because of its sharp lateral penumbra and steep distal fall-off, proton therapy offers dosimetric advantages over photon therapy. In head and neck cancer, proton therapy has been used for decades in the treatment of skull-base tumors. In recent years the use of proton therapy has been extended to numerous other disease sites, including nasopharynx, oropharynx, nasal cavity and paranasal sinuses, periorbital tumors, skin, and salivary gland, or to reirradiation. The aim of this review is to present the physical properties and dosimetric benefit of proton therapy over advanced photon therapy; to summarize the clinical benefit described for each disease site; and to discuss issues of patient selection and cost-effectiveness...
January 2018: Seminars in Radiation Oncology
https://www.readbyqxmd.com/read/29130584/long-term-outcomes-after-reirradiation-in-nasopharyngeal-carcinoma-with-intensity-modulated-radiotherapy-a-meta-analysis
#11
REVIEW
Yiat Horng Leong, Yu Yang Soon, Khai Mun Lee, Lea Choung Wong, Ivan Weng Keong Tham, Francis Cho Hao Ho
BACKGROUND: The purpose of this clinical review was to summate the published data for the long-term outcomes of reirradiation with intensity-modulated radiotherapy (IMRT) for locally recurrent nasopharyngeal carcinoma (NPC). METHODS: We searched biomedical literature databases for eligible studies published from January 2005 to September 2016. Outcomes of interests were 5-year local failure-free survival, distant failure-free survival, overall survival (OS), and toxicities...
November 11, 2017: Head & Neck
https://www.readbyqxmd.com/read/29128197/reirradiation-of-gliomas-under-stereotactic-conditions-prognostic-factors-for-survival-without-relapse-or-side-effects-a-retrospective-study-at-tours-regional-university-hospital-france
#12
S Lévy, S Chapet, N Scher, K Debbi, A Ruffier, G Bernadou, Y Pointreau, G Calais
PURPOSE: To search for factors correlated with relapse-free survival following stereotactic reirradiation in patients with recurrent glioma following radiochemotherapy and evaluate tolerance to this treatment. PATIENTS AND METHODS: Initial radiotherapy was given according to the protocol of Stupp and al. Reirradiation was performed using the CyberKnife(®) system. Patients could have had surgical resection initially and at the time of recurrence. We analysed 13 patients treated between July 2010 and September 2014...
November 8, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/29114615/risk-of-carotid-blowout-after-reirradiation-with-particle-therapy
#13
Jon Espen Dale, Silvia Molinelli, Elisa Ciurlia, Mario Ciocca, Maria Bonora, Viviana Vitolo, Alfredo Mirandola, Stefania Russo, Roberto Orecchia, Olav Dahl, Piero Fossati
Purpose: Carotid blowout (CB) is a serious complication in retreatment of neoplasms in the head and neck (H&N) region. Rates seem to increase in hypofractionated or accelerated hyperfractionated regimens. In this study, we investigate the CB rate and the cumulative doses received by the carotid artery (CA) in a cohort of patients who were reirradiated at CNAO with particle therapy in the H&N region. Methods and materials: The dosimetric information, medical records, and tumor characteristics of 96 patients were analyzed...
July 2017: Advances in Radiation Oncology
https://www.readbyqxmd.com/read/29114606/estimating-prognosis-at-the-time-of-repeat-whole-brain-radiation-therapy-for-multiple-brain-metastases-the-reirradiation-score
#14
Natalie Logie, Rachel B Jimenez, Natalie Pulenzas, Kelly Linden, Denise Ciafone, Sunita Ghosh, Yuhui Xu, Shilo Lefresne, Erin Wong, Christina H Son, Helen A Shih, William W Wong, Scott Tyldesley, Kristopher Dennis, Edward Chow, Alysa M Fairchild
Purpose: Whole brain radiation therapy (WBRT) remains the standard of care for patients with multiple brain metastases, but more than half of treated patients will develop intracranial progression. Because there is no clear consensus on the optimal therapeutic approach, a prognostic index would be helpful to guide treatment options at progression. We explored whether the recursive partitioning analysis (RPA) score prior to repeat WBRT is predictive of survival. Methods and materials: This multi-institutional pooled analysis included patients with 2 or more brain metastases from any solid primary tumor that was treated with 2 courses of WBRT...
July 2017: Advances in Radiation Oncology
https://www.readbyqxmd.com/read/29102648/investigating-the-effect-of-reirradiation-or-systemic-therapy-in-patients-with-glioblastoma-after-tumor-progression-a-secondary-analysis-of-nrg-oncology-radiation-therapy-oncology-group-trial-0525
#15
Wenyin Shi, Molly Scannell Bryan, Mark R Gilbert, Minesh P Mehta, Deborah T Blumenthal, Paul D Brown, Egils Valeinis, Kirsten Hopkins, Luis Souhami, David W Andrews, Tzahala Tzuk-Shina, Steve P Howard, Emad F Youssef, Nathalie Lessard, James J Dignam, Maria Werner-Wasik
PURPOSE: To determine the impact on overall survival with different salvage therapies, including no treatment, reirradiation, systemic therapy, or radiation and systemic therapy, in participants of a phase 3 clinical trial evaluating dose-dense versus standard-dose temozolomide for patients with newly diagnosed glioblastoma. METHODS AND MATERIALS: This analysis of patients from Trial RTOG 0525 investigated the effect of reirradiation or systemic treatment after tumor progression...
September 4, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29080990/reirradiation-of-skull-base-tumors-with-advanced-highly-conformal-techniques
#16
REVIEW
Jennifer C Ho, Jack Phan
PURPOSE OF REVIEW: Skull base reirradiation is challenging due to complex anatomy, enrichment of treatment-resistant clonogens, and increased risk of severe treatment complications. Without local therapy, early mortality is certain and tumor progression can result in debilitating symptoms. Modern radiotherapy advancements, such as image-guided radiation therapy (IGRT), intensity-modulated radiation therapy (IMRT), particle therapy, and stereotactic radiation therapy (SRT), are attractive for skull base reirradiation...
October 28, 2017: Current Oncology Reports
https://www.readbyqxmd.com/read/29057779/reirradiation
#17
Ryoong-Jin Oh
No abstract text is available yet for this article.
2017: Nihon Hoshasen Gijutsu Gakkai Zasshi
https://www.readbyqxmd.com/read/29029888/reirradiation-using-permanent-interstitial-brachytherapy-a-potentially-durable-technique-for-salvaging-recurrent-pelvic-malignancies
#18
Jonathan Feddock, Dennis Cheek, Cole Steber, Jason Edwards, Stacey Slone, Wei Luo, Marcus Randall
PURPOSE: To present a time-to-failure (TTF) analysis for all patients treated with permanent interstitial brachytherapy (PIB) at our institution, with additional analyses to correlate successful reirradiation and to identify the frequency of severe grade 3 to 4 toxicity. METHODS AND MATERIALS: Forty-two previously irradiated patients received curative or palliative intent PIB for a recurrent pelvic malignancy between January 2009 and August 2016. Minimum follow-up was 6 months after the PIB procedure...
August 26, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29029887/long-term-clinical-safety-of-high-dose-proton-radiation-therapy-delivered-with-pencil-beam-scanning-technique-for-extracranial-chordomas-and-chondrosarcomas-in-adult-patients-clinical-evidence-of-spinal-cord-tolerance
#19
Sonja Stieb, James W Snider, Lorenzo Placidi, Ulrike Kliebsch, Anthony J Lomax, Ralf A Schneider, Damien C Weber
PURPOSE: To assess the radiation dose tolerance of the spinal cord by reviewing our institutional experience regarding the incidence of radiation-induced spinal cord toxicity after high-dose pencil beam scanning proton therapy (PBSPT). METHODS AND MATERIALS: Seventy-six patients (median age 53 years; range, 23-79 years) treated for spinal chordoma (n=55) or chondrosarcoma (n=21) met the following criteria and were retrospectively analyzed: PBSPT only, no reirradiation or concomitant chemotherapy, maximum dose (Dmax) to the spinal cord of ≥45 Gy(relative biological effectiveness [RBE]), ≥18 years of age, and follow-up of ≥12 months...
September 4, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28990255/role-of-surgery-in-the-treatment-of-osteoradionecrosis-and-its-complications-after-radiotherapy-for-nasopharyngeal-carcinoma
#20
Wen Bo Huang, Stanley Thian Sze Wong, Jimmy Yu Wai Chan
BACKGROUND: The purpose of this study was to review the efficacy of surgery for patients with osteoradionecrosis (ORN) after radiotherapy for nasopharyngeal carcinoma (NPC). METHODS: Between 2000 and 2016, we identified 162 patients with skull base ORN, among which 58 patients required surgery. A retrospective medical chart review was performed and the indications and results of surgical interventions were recorded. RESULTS: All surgeries were performed for the treatment of secondary complications of ORN, including central nervous system (CNS) infection (48...
October 9, 2017: Head & Neck
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