From radiobiological model investigations it is deduced that hyperfractionated irradiation can render possible a better tumor regression than conventional fractionation with the same complication rate in tumors growing not too quick.
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JCO Glob Oncol
January 2025
Department of Radiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.
Purpose: Head and neck cancers (HNCs) are in general treated with conventional fractionation regimen of 1.8-2 Gy per fraction. Altered fractionation (ALFT) strategies such as hypofractionation radiotherapy (HYPO-RT), accelerated fractionation radiotherapy (AFRT), and hyperfractionation radiotherapy (HFRT) have not been practiced uniformly across centers in different parts of the world.
View Article and Find Full Text PDFSci Rep
January 2025
Universite Claude Bernard Lyon 1, INL, UMR5270, CNRS, INSA Lyon, Ecole Centrale de Lyon, CPE Lyon, 69622, Villeurbanne, France.
Synchrotron microbeam radiotherapy (MRT), which has entered the clinical transfer phase, requires the development of appropriate quality assurance (QA) tools due to very high dose rates and spatial hyperfractionation. A microstrip plastic scintillating detector system with associated modules was proposed in the context of real-time MRT QA. A prototype of such a system with 105 scintillating microstrips was developed and tested under MRT conditions.
View Article and Find Full Text PDFFront Immunol
December 2024
Department of Hematology, Peking Union Medical College Hospital, Beijing, China.
Background: Bridging therapy can prevent patients from disease progression while waiting for CAR-T cell preparation. Hyper-fractionated radiotherapy can achieve an effective target dose within a short period, minimize radiation damage, and may modify immune environment compared to conventional radiotherapy.
Aims: This study aims to investigate the efficacy and safety of bridging hyper-fractionated radiotherapy in combination with CAR-T therapy for relapsed/refractory diffuse large B-cell lymphoma.
N Am Spine Soc J
December 2024
Department of Neurosurgery, University of Iowa Carver, College of Medicine, Iowa City, IA, United States.
Background: Chordomas are rare, slow growing, locally aggressive malignant bone tumors that arise from remnants of the embryonic notochord with variable presenting symptoms depending on tumor location.
Methods: All patients with craniospinal chordoma managed at our institution between 1982 and 2023 were retrospectively reviewed. Demographics, tumor characteristics, clinical course and treatment, and long-term neurological and survival outcomes were collected.
Strahlenther Onkol
October 2024
Department of Radiation Oncology, Münster University Hospital, Albert-Schweitzer-Campus 1, Building A1, 48149, Münster, Germany.
Purpose: This study aimed to analyze treatment-related risk factors for sensorineural hearing loss (SNHL) and an indication for hearing aids (IHA) in medulloblastoma patients after craniospinal radiotherapy (CSRT) and platin-based chemotherapy (PCth).
Methods: A total of 58 patients (116 ears) with medulloblastoma and clinically non-relevant pre-treatment hearing thresholds were included. Cranial radiotherapy and PCth were applied sequentially according to the HIT 2000 study protocol or post-study recommendations, the NOA-07 protocol, or the PNET (primitive neuroectodermal tumor) 5 MB therapy protocol.
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