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Savagner J, Ducassou A, Cabarrou B, Hangard G, Gambart M, Bertozzi AI, Baudou E, Boetto S, Larrieu D, Laprie A. Helical tomotherapy craniospinal irradiation in primary brain tumours: Toxicities and outcomes in a peadiatric and adult population. Clin Transl Radiat Oncol 2024; 46:100777. [PMID: 38628594 PMCID: PMC11019098 DOI: 10.1016/j.ctro.2024.100777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 03/30/2024] [Accepted: 04/04/2024] [Indexed: 04/19/2024] Open
Abstract
Objective As craniospinal irradiation (CSI) is delivered more frequently by helical tomotherapy (HT) with few reports about late effects, we analysed all patients treated in our centre over an 11-year period. Methods and materials Our study included all patients that underwent CSI by HT, between September 2009 and January 2020, in the Department of Radiation Oncology of the Toulouse Cancer Institute. Acute radiotherapy toxicities were reported and medium- to long-term outcomes analysed. Results Among the 79 patients included, 70.9 % were younger than 18 years at diagnosis, the median age was 13 (range: 1-52) at the time of radiation therapy, 67.1 % of patients had medulloblastoma. Half of them (49.4 %) had a metastatic disease at diagnosis. The median dose of CSI was 36 Gy (range, 18-36). Seventy-seven patients received a radiation boost to the original location of the primary tumour (97.5 %), 32 patients also received a boost to their metastatic sites (40.5 %). Median follow-up was 55.5 months (95 %CI = [41.2; 71.8]). The 3-year event-free survival rate was 66.3 % (95 %CI = [54.2; 75.9]). Most patients presented with acute haematological toxicities during CSI (85.9 %), predominantly severe thrombocytopenia (39.7 %). Among the 64 patients assessed for medium- and long-term outcomes, 52 survived and 47 were alive and disease-free at the latest follow-up visit on record. There were 3.8 % secondary tumours: two meningiomas and one diffuse intrinsic pontine glioma. Adult and paediatric patients respectively presented with secondary cataract (4.3 % vs 22.0 %), persistent hearing disorders (26.1 % vs 29.3 %), pulmonary or cardiac late effects (4.3 % vs 2.4 %), hormonal pituitary gland deficiencies (30.0 % vs 56.8 %) and psycho-cognitive disorders (56.5 % vs 53.7 %). Conclusion CSI dispensed by HT, did not result in any additional acute or late toxicities when compared to 3D-CSI. There was no increase in the secondary tumour rate compared to that reported in the literature.
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Affiliation(s)
- Julie Savagner
- Department of Paediatric Neurology, Children’s Hospital of Toulouse, 330 Avenue de Grande Bretagne, 31300 Toulouse, France
| | - Anne Ducassou
- Department of Radiation Oncology, Toulouse Cancer Institute (IUCT), 1 avenue Irene Joliot-Curie, 31100 Toulouse, France
| | - Bastien Cabarrou
- Department of Biostatistics, Toulouse Cancer Institute (IUCT), 1 avenue Irene Joliot-Curie, 31100 Toulouse, France
| | - Gregory Hangard
- Department of Radiation Oncology, Toulouse Cancer Institute (IUCT), 1 avenue Irene Joliot-Curie, 31100 Toulouse, France
| | - Marion Gambart
- Department of Paediatric Oncology, Children’s Hospital of Toulouse, 330 Avenue de Grande Bretagne, 31300 Toulouse, France
| | - Anne-Isabelle Bertozzi
- Department of Paediatric Oncology, Children’s Hospital of Toulouse, 330 Avenue de Grande Bretagne, 31300 Toulouse, France
| | - Eloise Baudou
- Department of Paediatric Neurology, Children’s Hospital of Toulouse, 330 Avenue de Grande Bretagne, 31300 Toulouse, France
| | - Sergio Boetto
- Department of Neurosurgery, Toulouse University Hospital, Pierre-Paul Riquet Hospital, Place du Docteur Baylac, Toulouse, France
| | - Delphine Larrieu
- Department of Oncology, Toulouse Cancer Institute (IUCT), 1 avenue Irene Joliot-Curie, 31100 Toulouse, France
| | - Anne Laprie
- Department of Radiation Oncology, Toulouse Cancer Institute (IUCT), 1 avenue Irene Joliot-Curie, 31100 Toulouse, France
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Turcas A, Kelly SM, Clementel E, Cernea D. Tomotherapy for Cranio-Spinal Irradiation. Clin Transl Radiat Oncol 2022; 38:96-103. [PMID: 36407491 PMCID: PMC9672131 DOI: 10.1016/j.ctro.2022.11.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 10/30/2022] [Accepted: 11/05/2022] [Indexed: 11/13/2022] Open
Abstract
Tomotherapy is safe and effective for cranio-spinal irradiation, both in paediatric patients and in adults, with similar disease-specific outcomes and toxicities as other techniques such as 3DCRT or IMRT/VMAT. Tomotherapy offers several technical advantages when compared to other radiotherapy techniques such as higher target conformity and better dose homogeneity. Helical Tomotherapy provides good organ-at-risk sparing for several structures, especially the vertebrae, parotids, and optic system. Reported treatment time/ beam-on-time is longer with helical Tomotherapy compared to other techniques.
Tomotherapy is a method of delivering rotational IMRT offering various advantages, notably for complex and large targets such as the cranio-spinal axis. This systematic literature review reports on main clinical outcomes and toxicities in patients with various cancer types that received whole craniospinal axis irradiation (CSI) using Tomotherapy and offers a comprehensive comparison between Tomotherapy and other radiotherapy delivery techniques. Databases including PubMed, PubMed Central, Embase, and Cochrane were searched using the keywords “tomotherapy” AND “craniospinal”. Fifty-six papers were included in the review. Patient population was adult in 9 papers, paediatric in 26 papers and mixed in 14 papers. Patients treated with helical Tomotherapy had similar disease-specific clinical outcomes and toxicities as patients treated using other techniques. Compared to any other technique, Tomotherapy provides better target coverage, homogeneity, and conformity in 23, 34 and 22 reports. Tomotherapy showed better organ-at-risk sparing for the thyroid, parotids, cochlea, eyes, heart and esophagus. Beam-On-Time (BOT) was reported to be longer for Tomotherapy in most studies (Median BOT: HT = 11 min, VMAT = 5.49 min, 3DCRT = 1.46 min). In conclusion, Tomotherapy offers good cranio-spinal axis coverage with improved homogeneity and conformity compared to other techniques, but with a considerably longer treatment time. Clinical outcome and toxicities suggest using Tomotherapy for CSI is efficient and safe.
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Pediatric radiotherapy for thoracic and abdominal targets: organ motion, reported margin sizes, and delineation variations – a systematic review. Radiother Oncol 2022; 173:134-145. [DOI: 10.1016/j.radonc.2022.05.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 05/09/2022] [Accepted: 05/26/2022] [Indexed: 11/21/2022]
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Veiga C, Lim P, Anaya VM, Chandy E, Ahmad R, D'Souza D, Gaze M, Moinuddin S, Gains J. Atlas construction and spatial normalisation to facilitate radiation-induced late effects research in childhood cancer. Phys Med Biol 2021; 66. [PMID: 33735848 PMCID: PMC8112163 DOI: 10.1088/1361-6560/abf010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 03/18/2021] [Indexed: 11/12/2022]
Abstract
Reducing radiation-induced side effects is one of the most important challenges in paediatric cancer treatment. Recently, there has been growing interest in using spatial normalisation to enable voxel-based analysis of radiation-induced toxicities in a variety of patient groups. The need to consider three-dimensional distribution of doses, rather than dose-volume histograms, is desirable but not yet explored in paediatric populations. In this paper, we investigate the feasibility of atlas construction and spatial normalisation in paediatric radiotherapy. We used planning computed tomography (CT) scans from twenty paediatric patients historically treated with craniospinal irradiation to generate a template CT that is suitable for spatial normalisation. This childhood cancer population representative template was constructed using groupwise image registration. An independent set of 53 subjects from a variety of childhood malignancies was then used to assess the quality of the propagation of new subjects to this common reference space using deformable image registration (i.e. spatial normalisation). The method was evaluated in terms of overall image similarity metrics, contour similarity and preservation of dose-volume properties. After spatial normalisation, we report a dice similarity coefficient of 0.95 ± 0.05, 0.85 ± 0.04, 0.96 ± 0.01, 0.91 ± 0.03, 0.83 ± 0.06 and 0.65 ± 0.16 for brain and spinal canal, ocular globes, lungs, liver, kidneys and bladder. We then demonstrated the potential advantages of an atlas-based approach to study the risk of second malignant neoplasms after radiotherapy. Our findings indicate satisfactory mapping between a heterogeneous group of patients and the template CT. The poorest performance was for organs in the abdominal and pelvic region, likely due to respiratory and physiological motion and to the highly deformable nature of abdominal organs. More specialised algorithms should be explored in the future to improve mapping in these regions. This study is the first step toward voxel-based analysis in radiation-induced toxicities following paediatric radiotherapy.
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Affiliation(s)
- Catarina Veiga
- Centre for Medical Image Computing, Department of Medical Physics and Biomedical Engineering, University College London, London, United Kingdom
| | - Pei Lim
- Department of Oncology, University College London Hospital NHS Foundation Trust, London, United Kingdom
| | - Virginia Marin Anaya
- Radiotherapy Physics Services, University College London Hospital NHS Foundation Trust, London, United Kingdom
| | - Edward Chandy
- Centre for Medical Image Computing, Department of Medical Physics and Biomedical Engineering, University College London, London, United Kingdom.,UCL Cancer Institute, University College London, London, United Kingdom
| | - Reem Ahmad
- Centre for Medical Image Computing, Department of Medical Physics and Biomedical Engineering, University College London, London, United Kingdom
| | - Derek D'Souza
- Radiotherapy Physics Services, University College London Hospital NHS Foundation Trust, London, United Kingdom
| | - Mark Gaze
- Department of Oncology, University College London Hospital NHS Foundation Trust, London, United Kingdom
| | - Syed Moinuddin
- Radiotherapy, University College London Hospital NHS Foundation Trust, London, United Kingdom
| | - Jennifer Gains
- Department of Oncology, University College London Hospital NHS Foundation Trust, London, United Kingdom
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Salfelder MEA, Kessel KA, Thiel U, Burdach S, Kampfer S, Combs SE. Prospective evaluation of multitarget treatment of pediatric patients with helical intensity-modulated radiotherapy. Strahlenther Onkol 2020; 196:1103-1115. [PMID: 32748147 PMCID: PMC7686189 DOI: 10.1007/s00066-020-01670-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 07/07/2020] [Indexed: 02/06/2023]
Abstract
Background and purpose Radiotherapy (RT) is persistently gaining significance in the treatment of pediatric tumors. However, individual features of a growing body and multifocal stages complicate this approach. Tomotherapy offers advantages in the treatment of anatomically complex tumors with low risks of side effects. Here we report on toxicity incidence and outcome of tomotherapy with a focus on multitarget RT (mtRT). Materials and methods From 2008 to 2017, 38 children diagnosed with sarcoma were treated with tomotherapy. The median age was 15 years (6–19 years). Toxicity was graded according to the Common Terminology Criteria for Adverse Events v.4.03 and classified into symptoms during RT, acutely (0–6 months) and late (>6 months) after RT, and long-term sideeffects (>24 months). Results The main histologies were Ewing sarcoma (n = 23 [61%]) and alveolar rhabdomyosarcoma (n = 5 [13%]). RT was performed with a median total dose of 54 Gy (40.5–66.0 Gy) and a single dose of 2 Gy (1.80–2.27 Gy). Twenty patients (53%) received mtRT. Median follow-up was 29.7 months (95% confidence interval 15.3–48.2 months) with a 5-year survival of 55.2% (±9.5%). The 5‑year survival rate of patients with mtRT (n = 20) was 37.1 ± 13.2%, while patients who received single-target RT (n = 18) had a 5-year survival rate of 75 ± 10.8%. Severe toxicities (grade 3 and 4) emerged in 14 patients (70%) with mtRT and 7 patients (39%) with single-target RT. Two non-hematological grade 4 toxicities occurred during RT: one mucositis and one radiodermatitis. After mtRT 5 patients had grade 3 toxicities acute and after single-target RT 4 patients. One patient had acute non-hematological grade 4 toxicities (gastritis, pericarditis, and pericardial effusion) after mtRT. Severe late effects of RT occurred in 2 patients after mtRT and in none of the single-target RT patients. No severe long-term side effects appeared. Conclusion Our results showed acceptable levels of acute and late toxicities, considering the highly advanced diseases and multimodal treatment. Hence, tomotherapy is a feasible treatment method for young patients with anatomically complex tumors or multiple targets. Especially mtRT is a promising and innovative treatment approach for pediatric sarcomas, delivering unexpectedly high survival rates for patients with multifocal Ewing sarcomas in this study, whereby the limited number of patients should invariably be considered in the interpretation. Electronic supplementary material The online version of this article (10.1007/s00066-020-01670-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Maria-Elena A. Salfelder
- Department of Radiation Oncology, Technical University Munich (TUM), Ismaninger Straße 22, 81675 Munich, Germany
| | - Kerstin A. Kessel
- Department of Radiation Oncology, Technical University Munich (TUM), Ismaninger Straße 22, 81675 Munich, Germany
- DKTK Partner Site Munich, Deutsches Konsortium für Translationale Krebsforschung (DKTK), Munich, Germany
- Institute of Radiation Medicine (IRM), Helmholtz Zentrum München, Ingolstädter Landstraße 1, Neuherberg, Germany
| | - Uwe Thiel
- Department of Pediatrics and Children’s Cancer Research Center, Kinderklinik München Schwabing, Technical University of Munich School for Medicine, Munich, Germany
| | - Stefan Burdach
- Department of Pediatrics and Children’s Cancer Research Center, Kinderklinik München Schwabing, Technical University of Munich School for Medicine, Munich, Germany
| | - Severin Kampfer
- Department of Radiation Oncology, Technical University Munich (TUM), Ismaninger Straße 22, 81675 Munich, Germany
| | - Stephanie E. Combs
- Department of Radiation Oncology, Technical University Munich (TUM), Ismaninger Straße 22, 81675 Munich, Germany
- DKTK Partner Site Munich, Deutsches Konsortium für Translationale Krebsforschung (DKTK), Munich, Germany
- Institute of Radiation Medicine (IRM), Helmholtz Zentrum München, Ingolstädter Landstraße 1, Neuherberg, Germany
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Hill-Kayser CE, Tochner Z, Li Y, Kurtz G, Lustig RA, James P, Balamuth N, Womer R, Mattei P, Grupp S, Mosse YP, Maris JM, Bagatell R. Outcomes After Proton Therapy for Treatment of Pediatric High-Risk Neuroblastoma. Int J Radiat Oncol Biol Phys 2019; 104:401-408. [PMID: 30738983 DOI: 10.1016/j.ijrobp.2019.01.095] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 01/04/2019] [Accepted: 01/31/2019] [Indexed: 10/27/2022]
Abstract
PURPOSE Patients with high-risk neuroblastoma (HR-NBL) require radiation to the primary tumor site and sites of persistent metastatic disease. Proton radiation therapy (PRT) may promote organ sparing, but long-term outcomes have not been studied. METHODS AND MATERIALS Sequential patients with HR-NBL received PRT: 2160 cGy (relative biological effectiveness) to primary tumor bed and persistent metastatic sites, with 3600 cGy (relative biological effectiveness) to gross residual disease. RESULTS From September 2010 through September 2015, 45 patients with HR-NBL received PRT after systemic therapy, primary tumor resection, and high-dose chemotherapy with stem cell rescue. Median age was 46 months at the time of PRT (range, 10 months to 12 years); 23 patients (51%) were male. Primary tumors were adrenal in 40 (89%); 11 (24%) received boost. Ten metastatic sites in 8 patients were radiated. Double scattered proton beams were used for 19 (42%) patients, in combination with x-rays for 2 (5%). The remaining 26 (58%) received pencil beam scanning, available since January 2013. We observed 97% freedom from primary site recurrence at 3, 4, and 5 years. Overall survival rates were 89%, 80%, and 80% and disease-free survival rates were 77%, 70%, and 70%, at 3, 4, and 5 years, respectively. With median follow-up of 48.7 months from diagnosis (range, 11-90 months) for all patients (57.4 months for those alive), 37 (82%) patients are alive, and 32 (71%) are without evidence of disease. One patient experienced locoregional recurrence; the remaining 12 (27%) experienced relapse at distant, nonradiated sites. Acute toxicities during treatment were mainly grade 1. No patient has experienced World Health Organization grade 3 or 4 long-term renal or hepatic toxicity. Pencil beam scanning plans required less planning time and resources than double scattered plans. CONCLUSIONS We observe excellent outcomes in patients treated with PRT for HR-NBL from 2010 through 2015, with 82% of patients alive and 97% free of primary site recurrence. No patient has experienced long-term renal or liver toxicity. This treatment maximizes normal tissue preservation and is appropriate for this patient population.
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Affiliation(s)
- Christine E Hill-Kayser
- Department of Radiation Oncology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.
| | - Zelig Tochner
- Department of Radiation Oncology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Yimei Li
- Department of Pediatrics, Division of Oncology, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania; Department of Biostatics, Epidemiology and Informatics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Goldie Kurtz
- Department of Radiation Oncology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Robert A Lustig
- Department of Radiation Oncology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Paul James
- Department of Radiation Oncology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Naomi Balamuth
- Department of Pediatrics, Division of Oncology, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Richard Womer
- Department of Pediatrics, Division of Oncology, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Peter Mattei
- Department of Surgery, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Stephen Grupp
- Department of Pediatrics, Division of Oncology, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Yael P Mosse
- Department of Pediatrics, Division of Oncology, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - John M Maris
- Department of Pediatrics, Division of Oncology, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Rochelle Bagatell
- Department of Pediatrics, Division of Oncology, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
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Wong KK, Ragab O, Tran HN, Pham A, All S, Waxer J, Olch AJ. Acute toxicity of craniospinal irradiation with volumetric-modulated arc therapy in children with solid tumors. Pediatr Blood Cancer 2018; 65:e27050. [PMID: 29630782 DOI: 10.1002/pbc.27050] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 01/30/2018] [Accepted: 02/14/2018] [Indexed: 12/27/2022]
Abstract
BACKGROUND Craniospinal irradiation (CSI) is an important part of curative radiation therapy (RT) for many types of pediatric brain or solid tumors. After conventional CSI, long term survivors may experience sequelae due to unintended dose to normal tissue. Volumetric modulated arc therapy (VMAT) CSI reduces off-target doses at the cost of greater complexity and error risk, and we describe our initial experience in a group of pediatric patients with solid tumors presenting with disseminated or recurrent disease. PROCEDURE Pediatric patients with brain tumors were identified at Children's Hospital Los Angeles from 2013 to 2015. Clinical characteristics, acute toxicity, and radiotherapy data were abstracted from their medical records. We identified 19 patients who received VMAT CSI. Quality assurance was performed with a cylindrical detector array and ion chamber measurements at the arc junctions. RESULTS Patients had medulloblastoma or supratentorial primitive neuro-ectodermal tumor (n = 14, 11 high risk), germ cell tumors (two), relapsed neuroblastoma (two), and atypical teratoid/rhabdoid tumor (one). The most common acute toxicity was hematologic, including leukopenia (11% grade [Gr] 2, 26% Gr 3, and 63% Gr 4), anemia (89% Gr 2), and thrombocytopenia (16% Gr 1-2, 26% Gr 3, and 37% Gr 4). Despite leukopenia, we encountered only two Gr 3 infections (urinary tract and lung). The majority required blood products (89% red blood cells and 68% platelets). Weight loss was also common (47% Gr 1 and 26% Gr 2). CONCLUSIONS VMAT CSI, along with chemotherapy and anesthesia, is feasible with supportive care. Daily image-guided RT improves accuracy and reduces the risk of spinal cord overdose without increasing treatment time. Further research is needed to determine whether reducing doses to organs, such as thyroid, heart, or hippocampus, offsets the risk of increased volume of low-dose irradiation.
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Affiliation(s)
- Kenneth K Wong
- Department of Radiation Oncology, Keck School of Medicine of the University of Southern California, Los Angeles, California.,Children's Center for Cancer and Blood Diseases, Children's Hospital Los Angeles, Los Angeles, California
| | - Omar Ragab
- Department of Radiation Oncology, Keck School of Medicine of the University of Southern California, Los Angeles, California
| | - Hung N Tran
- Pediatric Neuro-Oncology, Department of Pediatrics, Kaiser Permanente, Los Angeles, California
| | - Anthony Pham
- Department of Radiation Oncology, Keck School of Medicine of the University of Southern California, Los Angeles, California
| | - Sean All
- College of Medicine, University of Central Florida, Orlando, Florida
| | - Jonathan Waxer
- School of Medicine, Tulane University, New Orleans, Louisiana
| | - Arthur J Olch
- Department of Radiation Oncology, Keck School of Medicine of the University of Southern California, Los Angeles, California.,Children's Center for Cancer and Blood Diseases, Children's Hospital Los Angeles, Los Angeles, California
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Zhang R, Howell RM, Taddei PJ, Giebeler A, Mahajan A, Newhauser WD. A comparative study on the risks of radiogenic second cancers and cardiac mortality in a set of pediatric medulloblastoma patients treated with photon or proton craniospinal irradiation. Radiother Oncol 2014; 113:84-8. [PMID: 25128084 PMCID: PMC4256116 DOI: 10.1016/j.radonc.2014.07.003] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Revised: 07/09/2014] [Accepted: 07/10/2014] [Indexed: 12/30/2022]
Abstract
PURPOSE To compare the risks of radiogenic second cancers and cardiac mortality in 17 pediatric medulloblastoma patients treated with passively scattered proton or field-in-field photon craniospinal irradiation (CSI). MATERIAL/METHODS Standard of care photon or proton CSI treatment plans were created for all 17 patients in a commercial treatment planning system (TPS) (Eclipse version 8.9; Varian Medical Systems, Palo Alto, CA) and prescription dose was 23.4 or 23.4 Gy (RBE) to the age specific target volume at 1.8 Gy/fraction. The therapeutic doses from proton and photon CSI plans were estimated from TPS. Stray radiation doses were determined from Monte Carlo simulations for proton CSI and from measurements and TPS for photon CSI. The Biological Effects of Ionization Radiation VII report and a linear model based on childhood cancer survivor data were used for risk predictions of second cancer and cardiac mortality, respectively. RESULTS The ratios of lifetime attributable risk (RLARs) (proton/photon) ranged from 0.10 to 0.22 for second cancer incidence and ranged from 0.20 to 0.53 for second cancer mortality, respectively. The ratio of relative risk (RRR) (proton/photon) of cardiac mortality ranged from 0.12 to 0.24. The RLARs of both cancer incidence and mortality decreased with patient's age at exposure (e), while the RRRs of cardiac mortality increased with e. Girls had a significantly higher RLAR of cancer mortality than boys. CONCLUSION Passively scattered proton CSI provides superior predicted outcomes by conferring lower predicted risks of second cancer and cardiac mortality than field-in-field photon CSI for all medulloblastoma patients in a large clinically representative sample in the United States, but the magnitude of superiority depends strongly on the patients' anatomical development status.
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Affiliation(s)
- Rui Zhang
- The University of Texas Graduate School of Biomedical Sciences at Houston, USA; Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Rebecca M Howell
- The University of Texas Graduate School of Biomedical Sciences at Houston, USA; Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Phillip J Taddei
- The University of Texas Graduate School of Biomedical Sciences at Houston, USA; Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, USA; Department of Radiation Oncology, American University of Beirut Medical Center, Lebanon
| | - Annelise Giebeler
- The University of Texas Graduate School of Biomedical Sciences at Houston, USA; Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, USA; Current address is: Scripps Proton Therapy Center, San Diego, CA, USA
| | - Anita Mahajan
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Wayne D Newhauser
- The University of Texas Graduate School of Biomedical Sciences at Houston, USA; Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, USA; Medical Physics Program, Department of Physics and Astronomy, Louisiana State University, Baton Rouge, USA.
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Petersson K, Gebre-Medhin M, Ceberg C, Nilsson P, Engström P, Knöös T, Kjellén E. Haematological toxicity in adult patients receiving craniospinal irradiation--indication of a dose-bath effect. Radiother Oncol 2014; 111:47-51. [PMID: 24680378 DOI: 10.1016/j.radonc.2014.01.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 01/23/2014] [Accepted: 01/26/2014] [Indexed: 01/10/2023]
Abstract
BACKGROUND AND PURPOSE The purpose of this study was to investigate the correlation between the haematological toxicity observed in patients treated with craniospinal irradiation, and the dose distribution in normal tissue, specifically the occurrence of large volumes exposed to low dose. MATERIALS AND METHODS Twenty adult male patients were included in this study; eight treated with helical tomotherapy (HT), and twelve with three-dimensional conformal radiation therapy. The relative volume of red bone marrow and body that was exposed to low dose (i.e. the so-called dose bath) was evaluated and correlated with nadir blood values during treatment, i.e. the severity of anaemia, leukopaenia, and thrombocytopaenia. The correlation was tested for different dose levels representing the dose bath using the Pearson product-moment correlation method. RESULTS We found a significant correlation between the volume of red bone marrow exposed to low dose and the severity of thrombocytopaenia during treatment. Furthermore, for the HT patients, a significant correlation was found between the relative volume of the body exposed to low dose and the severity of anaemia and leukopenia. CONCLUSIONS The severity of haematological toxicity correlated with the fraction of red bone marrow or body that was exposed to low dose.
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Affiliation(s)
- Kristoffer Petersson
- Department of Medical Radiation Physics, Clinical Sciences, Lund University, Lund, Sweden.
| | | | - Crister Ceberg
- Department of Medical Radiation Physics, Clinical Sciences, Lund University, Lund, Sweden
| | - Per Nilsson
- Department of Oncology, Skåne University Hospital, Lund, Sweden
| | - Per Engström
- Department of Medical Radiation Physics, Clinical Sciences, Lund University, Lund, Sweden; Radiation Physics, Skåne University Hospital, Lund, Sweden
| | - Tommy Knöös
- Department of Medical Radiation Physics, Clinical Sciences, Lund University, Lund, Sweden; Radiation Physics, Skåne University Hospital, Lund, Sweden
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10
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Treatment of high-risk neuroblastoma in children: recent clinic trial results. ACTA ACUST UNITED AC 2013. [DOI: 10.4155/cli.13.90] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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11
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Hill-Kayser C, Tochner Z, Both S, Lustig R, Reilly A, Balamuth N, Womer R, Maris J, Grupp S, Bagatell R. Proton versus photon radiation therapy for patients with high-risk neuroblastoma: the need for a customized approach. Pediatr Blood Cancer 2013; 60:1606-11. [PMID: 23737005 DOI: 10.1002/pbc.24606] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Accepted: 04/29/2013] [Indexed: 12/25/2022]
Abstract
BACKGROUND Proton therapy for treatment for high-risk neuroblastoma may offer sparing of organs at risk (OAR) when compared to intensity-modulated X-ray therapy (IMXT). PROCEDURE Double-scattered proton plans and IMXT plans delivering 2,160 cGy to the primary tumor site and other residual disease were developed for 13 consecutive HR-NBL patients. Radiation doses to target volumes and OAR were calculated to determine the optimal modality for each. RESULTS All patients received radiation (5/13 ≥ 2 sites). No patient has experienced local recurrence or clinical organ toxicity. Coverage was excellent using both protons and IMXT: median % dose delivered to 95% clinical target volume was 99% and 100%, respectively. For nine patients with lateralized disease, proton therapy offered sparing of the contralateral kidney both with regard to median dose and dose to 20% (median <1 cGy vs. 362 cGy, P = 0.01; median 100 cGy vs. 634 cGy, P = 0.02, respectively). Proton therapy did not reduce ipsilateral kidney dose, and for 2 select patients with lateralized disease IMXT improved overall bilateral renal sparing. Proton therapy improved median bowel (median 33 cGy vs. 590 cGy, P = 0.01), total body (median <1 cGy vs. 30 cGy, P = 0.15), and liver dose (median <1 cGy vs. 529, P < 0.001). When chest RT was required, proton therapy decreased median heart dose and mean lung dose. CONCLUSIONS For most patients (11/13), proton therapy offered the optimal combination of target coverage and organ sparing, and is a feasible treatment for HR-NBL. We recommend a customized approach with careful evaluation of renal dosimetry; IMXT may be preferred for select patients.
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Affiliation(s)
- Christine Hill-Kayser
- Department of Radiation Oncology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA.
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Outcome and toxicity using helical tomotherapy for craniospinal irradiation in pediatric medulloblastoma. Clin Transl Oncol 2013; 16:96-101. [PMID: 23632814 DOI: 10.1007/s12094-013-1048-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Accepted: 04/16/2013] [Indexed: 01/30/2023]
Abstract
PURPOSE The objective of this study is to evaluate the tolerability and outcome of craniospinal irradiation (CSI) with helical tomotherapy (HT) in the treatment of medulloblastoma. METHODS We evaluated 19 consecutive patients with primary medulloblastoma who were treated with HT from 2007 through 2010. HT regimens to the neuroaxis included: 23.4 Gy at 1.8 Gy/fraction (N = 10), 36 Gy at 1.8 Gy/fraction (N = 7), and 39 Gy bid at 1.3 Gy/fraction (N = 2). The tumor bed received 54-60 Gy. Potential associations between patient, treatment, and toxicity factors and overall survival (OS) were assessed in univariate analyses using the Cox proportional hazards model. Spearman's rank correlation coefficient was used to correlate potential risk factors with the grade of acute toxicity. RESULTS The median age at diagnosis was 5 years (range 2-14) and the median follow-up for alive patients (N = 14) 40 months (range 10-62). Two- and three-year overall survival was 75 and 68 %, respectively. The most common acute toxicity was hematological (79 %), being grade 2 and grade 3 in 4 (21 %) and 11 (58 %) cases, respectively. No grade ≥2 late toxicities were observed. Higher grades of acute body toxicity were found in older children (P = 0.004). Longer time between diagnosis and radiation therapy was correlated with shorter OS (P = 0.03). In addition, higher grades of acute thrombocytopenia were associated with shorter OS (P = 0.03). CONCLUSIONS CSI delivered with HT for medulloblastoma is well tolerated with low rates of severe acute toxicity. Further research is necessary to assess late toxicity with a longer follow-up.
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