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Zukauskaite R, Kristensen MH, Eriksen JG, Johansen J, Samsøe E, Johnsen L, Lønkvist CK, Grau C, Hansen CR. Comparison of 3-year local control using DAHANCA radiotherapy guidelines before and after implementation of five millimetres geometrical GTV to high-dose CTV margin. Radiother Oncol 2024; 196:110284. [PMID: 38636711 DOI: 10.1016/j.radonc.2024.110284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/26/2024] [Accepted: 04/11/2024] [Indexed: 04/20/2024]
Abstract
INTRODUCTION Treatment planning using a five-millimetre geometrical margin from GTV to high-dose CTV (CTV1) has been used in DAHANCA treatment centres since 2013. We aimed to evaluate changes in CTV1 volumes, local control (LC), and recurrence pattern after the implementation of five-millimetre geometrical margins nationally. MATERIALS AND METHODS 1,948 patients with pharyngeal, and laryngeal squamous cell carcinomas completed definitive IMRT-based treatment in 2010-2012 and 2013-2015 in three centres. The patient-specific margin was calculated as median surface distance from primary tumour GTV (GTV-T) to CTV1. Radiologically verified local recurrences were analysed using a centre of mass (COM) of the delineated recurrence volume, measuring the shortest distance between COM to GTV-T and CTV1 boundaries. RESULTS Median GTV-CTV1 was 0.9 (0.0-0.97) and 0.47 cm (0.4-0.5) for 2010-2012 and 2013-2015, respectively. Median CTV1 changed in three centres from 76, 28, 42 cm3 to 61, 53, 62 cm3 for 2010-2012 and 2013-2015, respectively. Local failures occurred at 247 patients during first three years after radiotherapy. The 3-year LC rate for 2010-2012 and 2013-2015 was 0.84 and 0.87 (p = 0.06). Out of 146 radiology-verified analysable local recurrences, 102 (69.9%) were inside the CTV1. In 74.6% and 91% of cases, the LRs were covered by 95% isodose in 2010-2012 and 2013-2015, respectively. CONCLUSION DAHANCA radiotherapy guidelines based on a geometrically generated isotropic CTV1 margin led to less variation in treatment volumes and between centres than previous guidelines. The transition towards consensus GTV-CTV1 margins did not influence local tumour control. The majority of local recurrences were inside CTV1 and covered by the prescription dose.
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Affiliation(s)
- Ruta Zukauskaite
- Department of Oncology, Odense University Hospital, Odense, Denmark.
| | | | - Jesper Grau Eriksen
- Department of Experimental Clinical Oncology, Aarhus University Hospital, Aarhus, Denmark
| | - Jørgen Johansen
- Department of Oncology, Odense University Hospital, Odense, Denmark
| | - Eva Samsøe
- Department of Oncology, Zealand University Hospital, Næstved, Denmark
| | - Lars Johnsen
- Laboratory of Radiation Physics, Odense University Hospital, Odense, Denmark
| | - Camilla Kjær Lønkvist
- Department of Oncology, Herlev and Gentofte Hospital, University of Copenhagen, Denmark
| | - Cai Grau
- Danish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
| | - Christian Rønn Hansen
- Laboratory of Radiation Physics, Odense University Hospital, Odense, Denmark; Danish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Research, University of Southern Denmark, Odense, Denmark
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Yang F, Wong RJ, Zakeri K, Singh A, Estilo CL, Lee NY. Osteoradionecrosis Rates After Head and Neck Radiation Therapy: Beyond the Numbers. Pract Radiat Oncol 2024:S1879-8500(24)00084-5. [PMID: 38649030 DOI: 10.1016/j.prro.2024.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 02/14/2024] [Accepted: 02/20/2024] [Indexed: 04/25/2024]
Abstract
PURPOSE Osteoradionecrosis (ORN) is a severe late complication of head and neck radiation therapy shown to have profound negative effect on the quality of life of cancer survivors. Over the past few decades, improvements in radiation delivery techniques have resulted in a decrease in the incidence of ORN. However, even with modern radiation therapy techniques, ORN remains an important clinical concern. In recent literature, there is a wide range of reported ORN rates from 0% to as high as 20%. With such a high level of variability in the reported incidence of ORN, oncologists often encounter difficulties estimating the risk of this serious radiation therapy toxicity. METHODS AND MATERIALS In this review, the authors present a summary of the factors that contribute to the high level of variability in the reported incidence of ORN. RESULTS Variable definition, variable grading, and heterogeneity of both study inclusion criteria and treatment parameters can each significantly influence the reporting of ORN rates. CONCLUSIONS Given numerous factors can affect the reported incidence of ORN, a thorough understanding of the clinical context behind the reported ORN rates is needed to comprehend the true risk of this important radiation therapy toxicity.
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Affiliation(s)
- Fan Yang
- Departments of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Richard J Wong
- Departments of Head and Neck Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Kaveh Zakeri
- Departments of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Annu Singh
- Departments of Dentistry, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Cherry L Estilo
- Departments of Dentistry, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Nancy Y Lee
- Departments of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York.
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Kutuk T, Atak E, Villa A, Kalman NS, Kaiser A. Interdisciplinary Collaboration in Head and Neck Cancer Care: Optimizing Oral Health Management for Patients Undergoing Radiation Therapy. Curr Oncol 2024; 31:2092-2108. [PMID: 38668058 PMCID: PMC11049200 DOI: 10.3390/curroncol31040155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 03/29/2024] [Accepted: 04/03/2024] [Indexed: 04/28/2024] Open
Abstract
Radiation therapy (RT) plays a crucial role in the treatment of head and neck cancers (HNCs). This paper emphasizes the importance of effective communication and collaboration between radiation oncologists and dental specialists in the HNC care pathway. It also provides an overview of the role of RT in HNC treatment and illustrates the interdisciplinary collaboration between these teams to optimize patient care, expedite treatment, and prevent post-treatment oral complications. The methods utilized include a thorough analysis of existing research articles, case reports, and clinical guidelines, with terms such as 'dental management', 'oral oncology', 'head and neck cancer', and 'radiotherapy' included for this review. The findings underscore the significance of the early involvement of dental specialists in the treatment planning phase to assess and prepare patients for RT, including strategies such as prophylactic tooth extraction to mitigate potential oral complications. Furthermore, post-treatment oral health follow-up and management by dental specialists are crucial in minimizing the incidence and severity of RT-induced oral sequelae. In conclusion, these proactive measures help minimize dental and oral complications before, during, and after treatment.
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Affiliation(s)
- Tugce Kutuk
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL 33176, USA; (T.K.)
| | - Ece Atak
- Department of Radiation Oncology, Akdeniz University Faculty of Medicine, Antalya 07070, Turkey;
| | - Alessandro Villa
- Oral Medicine and Oral Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL 33176, USA;
| | - Noah S. Kalman
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL 33176, USA; (T.K.)
- Department of Radiation Oncology, Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA
| | - Adeel Kaiser
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL 33176, USA; (T.K.)
- Department of Radiation Oncology, Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA
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Northway SK, Vallejo BM, Liu L, Hansen EE, Tang S, Mah D, MacEwan IJ, Urbanic JJ, Chang C. A quantitative framework for patient-specific collision detection in proton therapy. J Appl Clin Med Phys 2024; 25:e14247. [PMID: 38131514 PMCID: PMC11005990 DOI: 10.1002/acm2.14247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/28/2023] [Accepted: 12/04/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Beam modifying accessories for proton therapy often need to be placed in close proximity of the patient for optimal dosimetry. However, proton treatment units are larger in size and as a result the planned treatment geometry may not be achievable due to collisions with the patient. A framework that can accurately simulate proton treatment geometry is desired. PURPOSE A quantitative framework was developed to model patient-specific proton treatment geometry, minimize air gap, and avoid collisions. METHODS The patient's external contour is converted into the International Electrotechnique Commission (IEC) gantry coordinates following the patient's orientation and each beam's gantry and table angles. All snout components are modeled by three-dimensional (3D) geometric shapes such as columns, cuboids, and frustums. Beam-specific parameters such as isocenter coordinates, snout type and extension are used to determine if any point on the external contour protrudes into the various snout components. A 3D graphical user interface is also provided to the planner to visualize the treatment geometry. In case of a collision, the framework's analytic algorithm quantifies the maximum protrusion of the external contour into the snout components. Without a collision, the framework quantifies the minimum distance of the external contour from the snout components and renders a warning if such distance is less than 5 cm. RESULTS Three different snout designs are modeled. Examples of potential collision and its aversion by snout retraction are demonstrated. Different patient orientations, including a sitting treatment position, as well as treatment plans with multiple isocenters, are successfully modeled in the framework. Finally, the dosimetric advantage of reduced air gap enabled by this framework is demonstrated by comparing plans with standard and reduced air gaps. CONCLUSION Implementation of this framework reduces incidence of collisions in the treatment room. In addition, it enables the planners to minimize the air gap and achieve better plan dosimetry.
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Affiliation(s)
- Stephen K. Northway
- Department of Radiation Medicine and Applied SciencesUniversity of California at San DiegoLa JollaCaliforniaUSA
- California Protons Cancer Therapy CenterSan DiegoCaliforniaUSA
| | - Bailey M. Vallejo
- Department of Radiation Medicine and Applied SciencesUniversity of California at San DiegoLa JollaCaliforniaUSA
- California Protons Cancer Therapy CenterSan DiegoCaliforniaUSA
| | - Lawrence Liu
- Department of Radiation Medicine and Applied SciencesUniversity of California at San DiegoLa JollaCaliforniaUSA
- California Protons Cancer Therapy CenterSan DiegoCaliforniaUSA
| | - Emily E. Hansen
- Department of Radiation Medicine and Applied SciencesUniversity of California at San DiegoLa JollaCaliforniaUSA
- California Protons Cancer Therapy CenterSan DiegoCaliforniaUSA
| | - Shikui Tang
- Texas Center for Proton TherapyIrvingTexasUSA
| | - Dennis Mah
- ProCure Proton Therapy CenterSomersetNew JerseyUSA
| | - Iain J. MacEwan
- Department of Radiation Medicine and Applied SciencesUniversity of California at San DiegoLa JollaCaliforniaUSA
- California Protons Cancer Therapy CenterSan DiegoCaliforniaUSA
| | - James J. Urbanic
- Department of Radiation Medicine and Applied SciencesUniversity of California at San DiegoLa JollaCaliforniaUSA
- California Protons Cancer Therapy CenterSan DiegoCaliforniaUSA
| | - Chang Chang
- Department of Radiation Medicine and Applied SciencesUniversity of California at San DiegoLa JollaCaliforniaUSA
- California Protons Cancer Therapy CenterSan DiegoCaliforniaUSA
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Youssef I, Mohamed N, Kallini D, Zakeri K, Lin H, Han D, Qi H, Nosov A, Riaz N, Chen L, Yu Y, Dunn LA, Sherman EJ, Wray R, Schöder H, Lee NY. An Analysis of Positron Emission Tomography Maximum Standard Uptake Value Among Patients With Head and Neck Cancer Receiving Photon and Proton Radiation. Int J Radiat Oncol Biol Phys 2024:S0360-3016(24)00428-0. [PMID: 38499254 DOI: 10.1016/j.ijrobp.2024.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 02/23/2024] [Accepted: 03/07/2024] [Indexed: 03/20/2024]
Abstract
PURPOSE One main advantage of proton therapy versus photon therapy is its precise radiation delivery to targets without exit dose, resulting in lower dose to surrounding healthy tissues. This is critical, given the proximity of head and neck tumors to normal structures. However, proton planning requires careful consideration of factors, including air-tissue interface, anatomic uncertainties, surgical artifacts, weight fluctuations, rapid tumor response, and daily variations in setup and anatomy, as these heterogeneities can lead to inaccuracies in targeting and creating unwarranted hotspots to a greater extent than photon radiation. In addition, the elevated relative biological effectiveness at the Bragg peak's distal end can also increase hot spots within and outside the target area. METHODS AND MATERIALS The purpose of this study was to evaluate for a difference in positron emission tomography (PET) standard uptake value (SUV) after definitive treatment, between intensity modulated proton therapy (IMPT) and intensity modulated photon therapy (IMRT). In addition, we compared the biologic dose between PET areas of high and low uptake within the clinical target volume-primary of patients treated with IMPT. This work is assuming that the greater SUV may potentially result in greater toxicities. For the purposes of this short communication, we are strictly focusing on the SUV and do not have correlation with toxicity outcomes. To accomplish this, we compared the 3- and 6-month posttreatment fluorodeoxyglucose PET scans for 100 matched patients with oropharyngeal cancer treated definitively without surgery using either IMPT (n = 50) or IMRT (n = 50). RESULTS Our study found a significant difference in biologic dose between the high- and low-uptake regions on 3-month posttreatment scans of IMPT. However, this difference did not translate to a significant difference in PET uptake in the clinical target volume-primary at 3 and 6 months' follow-up between patients who received IMPT versus IMRT. CONCLUSIONS Studies have proposed that proton's greater relative biological effectiveness at the Bragg peak could lead to tissue inflammation. Our study did not corroborate these findings. This study's conclusion underscores the need for further investigations with ultimate correlation with clinical toxicity outcomes.
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Affiliation(s)
- Irini Youssef
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York; New York Proton Center, New York, New York
| | - Nader Mohamed
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Daniel Kallini
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Kaveh Zakeri
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Haibo Lin
- New York Proton Center, New York, New York
| | - Dong Han
- New York Proton Center, New York, New York
| | - Hang Qi
- New York Proton Center, New York, New York
| | - Anton Nosov
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Nadeem Riaz
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Linda Chen
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Yao Yu
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Lara Ann Dunn
- Department of Medical Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Eric J Sherman
- Department of Medical Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Rick Wray
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Heiko Schöder
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Nancy Y Lee
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York; New York Proton Center, New York, New York.
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Lim YX, D'Silva NJ. HPV-associated oropharyngeal cancer: in search of surrogate biomarkers for early lesions. Oncogene 2024; 43:543-554. [PMID: 38191674 PMCID: PMC10873204 DOI: 10.1038/s41388-023-02927-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 12/14/2023] [Accepted: 12/20/2023] [Indexed: 01/10/2024]
Abstract
The incidence of oropharyngeal cancer (OPSCC) has escalated in the past few decades; this has largely been triggered by high-risk human papillomavirus (HPV). Early cancer screening is needed for timely clinical intervention and may reduce mortality and morbidity, but the lack of knowledge about premalignant lesions for OPSCC poses a significant challenge to early detection. Biomarkers that identify individuals at high risk for OPSCC may act as surrogate markers for precancer but these are limited as only a few studies decipher the multistep progression from HPV infection to OPSCC development. Here, we summarize the current literature describing the multistep progression from oral HPV infection, persistence, and tumor development in the oropharynx. We also examine key challenges that hinder the identification of premalignant lesions in the oropharynx and discuss potential biomarkers for oropharyngeal precancer. Finally, we evaluate novel strategies to improve investigations of the biological process that drives oral HPV persistence and OPSCC, highlighting new developments in the establishment of a genetic progression model for HPV + OPSCC and in vivo models that mimic HPV + OPSCC pathogenesis.
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Affiliation(s)
- Yvonne X Lim
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, 1011 N. University Ave, Ann Arbor, MI, USA
| | - Nisha J D'Silva
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, 1011 N. University Ave, Ann Arbor, MI, USA.
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI, USA.
- Rogel Cancer Center, University of Michigan, 1500 E Medical Center Dr, Ann Arbor, MI, USA.
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Meiller TF, Fraser CM, Grant-Beurmann S, Humphrys M, Tallon L, Sadzewicz LD, Jabra-Rizk MA, Alfaifi A, Kensara A, Molitoris JK, Witek M, Mendes WS, Regine WF, Tran PT, Miller RC, Sultan AS. A Longitudinal Metagenomic Comparative Analysis of Oral Microbiome Shifts in Patients Receiving Proton Radiation versus Photon Radiation for Head and Neck Cancer. JOURNAL OF CANCER & ALLIED SPECIALTIES 2024; 10:579. [PMID: 38259673 PMCID: PMC10793722 DOI: 10.37029/jcas.v10i1.579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 12/01/2023] [Indexed: 01/24/2024]
Abstract
Introduction Due to the radiation-sparing effects on salivary gland acini, changes in the composition of the oral microbiome may be a driver for improved outcomes in patients receiving proton radiation, with potentially worse outcomes in patients exposed to photon radiation therapy. To date, a head-to-head comparison of oral microbiome changes at a metagenomic level with longitudinal sampling has yet to be performed in these patient cohorts. Methods and Materials To comparatively analyze oral microbiome shifts during head and neck radiation therapy, a prospective pilot cohort study was performed at the Maryland Proton Treatment Center and the University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center. A longitudinal metagenomic comparative analysis of oral microbiome shifts was performed at three time points (pre-radiation, during radiation, and immediately post-radiation). Head and neck cancer patients receiving proton radiation (n = 4) were compared to photon radiation (n = 4). Additional control groups included healthy age- and sex-matched controls (n = 5), head and neck cancer patients who never received radiation therapy (n = 8), and patients with oral inflammatory disease (n = 3). Results Photon therapy patients presented with lower microbial alpha diversity at all timepoints, and there was a trend towards reduced species richness as compared with proton therapy. Healthy controls and proton patients exhibited overall higher and similar diversity. A more dysbiotic state was observed in patients receiving photon therapy as compared to proton therapy, in which oral microbial homeostasis was maintained. Mucositis was observed in 3/4 photon patients and was not observed in any proton patients during radiation therapy. The bacterial de novo pyrimidine biosynthesis pathway and the nitrate reduction V pathway were comparatively higher following photon exposure. These functional changes in bacterial metabolism may suggest that photon exposure produces a more permissive environment for the proliferation of pathogenic bacteria. Conclusion Oral microbiome dysbiosis in patients receiving photon radiation may be associated with increased mucositis occurrence. Proton radiation therapy for head and neck cancer demonstrates a safer side effect profile in terms of oral complications, oral microbiome dysbiosis, and functional metabolic status.
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Affiliation(s)
- Timothy F. Meiller
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, United States
- University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, United States
| | - Claire M. Fraser
- Department of Medicine, University of Maryland School of Medicine, Baltimore, United States
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, United States
| | - Silvia Grant-Beurmann
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, United States
| | - Mike Humphrys
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, United States
| | - Luke Tallon
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, United States
| | - Lisa D. Sadzewicz
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, United States
| | - Mary Ann Jabra-Rizk
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, United States
- Department of Microbiology and Immunology, School of Medicine, University of Maryland, Baltimore, United States
| | - Areej Alfaifi
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, United States
- Department of Restorative and Prosthetic Dental Sciences, College of Dentistry King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Anmar Kensara
- Department of Advanced Oral Sciences and Therapeutics, School of Dentistry, University of Maryland, Baltimore, United States
- Department of Restorative Dentistry, College of Dentistry, Umm Al Qura University, Makkah, Saudi Arabia
| | - Jason K. Molitoris
- University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, United States
- Department of Radiation Oncology, University of Maryland Medical Center, Baltimore, United States
- Maryland Proton Treatment Center, 850 W Baltimore St, Baltimore, United States
| | - Matthew Witek
- University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, United States
- Department of Radiation Oncology, University of Maryland Medical Center, Baltimore, United States
- Maryland Proton Treatment Center, 850 W Baltimore St, Baltimore, United States
| | - William S. Mendes
- Department of Radiation Oncology, University of Maryland Medical Center, Baltimore, United States
| | - William F. Regine
- University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, United States
- Department of Radiation Oncology, University of Maryland Medical Center, Baltimore, United States
- Maryland Proton Treatment Center, 850 W Baltimore St, Baltimore, United States
| | - Phuoc T. Tran
- Department of Radiation Oncology, University of Maryland Medical Center, Baltimore, United States
- Maryland Proton Treatment Center, 850 W Baltimore St, Baltimore, United States
| | - Robert C. Miller
- Department of Radiation Medicine, University of Kentucky College of Medicine, Lexington, United States
| | - Ahmed S. Sultan
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, United States
- University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, United States
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Chiu KW, Yu TP, Kao YS. A systematic review and meta-analysis of osteoradionecrosis following proton therapy in patients with head and neck cancer. Oral Oncol 2024; 148:106649. [PMID: 38035508 DOI: 10.1016/j.oraloncology.2023.106649] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 10/24/2023] [Accepted: 11/20/2023] [Indexed: 12/02/2023]
Abstract
INTRODUCTION Head and neck cancer ranks as the seventh most common cancer worldwide. Proton therapy is widely used in head and neck cancer. Osteoradionecrosis(ORN) is currently a commonly investigated side effect of proton therapy. A meta-analysis is needed to investigate this topic. MATERIAL/METHODS Two authors searched three databases, including PubMed, Embase, and Cochrane Library; the search period was from inception to June 2023. The search keyword was set to be ((("osteoradionecrosis") OR ("osteonecrosis")) AND ("proton")). RESULTS We initially collected 410 articles, and after article selections, 22 articles remained in our systematic reviews. Due to the overlapping of patient populations, 17 studies were finally included in our meta-analysis. The pooled grade 3 or more ORN rate is 0.01(95 % CI = 0.01-0.03). Subgroup analysis showed that IMPT didn't reduce grade 3 or more ORN compared with 3DCPT (p = 0.15). CONCLUSIONS Our meta-analysis showed that severe ORN rarely occurred in proton therapy for head and neck cancer patients.
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Affiliation(s)
- Kun-Wei Chiu
- Department of Otorhinolaryngology, Head and Neck Surgery, Taichung Veterans General Hospital, Taichung, Taiwan, ROC
| | - Tzu-Ping Yu
- Department of Medical Education, Taichung Veterans General Hospital, Taichung, Taiwan, ROC
| | - Yung-Shuo Kao
- Department of Radiation Oncology, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan, ROC.
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Pennock M, Wei S, Cheng C, Lin H, Hasan S, Chhabra AM, Choi JI, Bakst RL, Kabarriti R, Simone II CB, Lee NY, Kang M, Press RH. Proton Bragg Peak FLASH Enables Organ Sparing and Ultra-High Dose-Rate Delivery: Proof of Principle in Recurrent Head and Neck Cancer. Cancers (Basel) 2023; 15:3828. [PMID: 37568644 PMCID: PMC10417542 DOI: 10.3390/cancers15153828] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/21/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023] Open
Abstract
Proton pencil-beam scanning (PBS) Bragg peak FLASH combines ultra-high dose rate delivery and organ-at-risk (OAR) sparing. This proof-of-principle study compared dosimetry and dose rate coverage between PBS Bragg peak FLASH and PBS transmission FLASH in head and neck reirradiation. PBS Bragg peak FLASH plans were created via the highest beam single energy, range shifter, and range compensator, and were compared to PBS transmission FLASH plans for 6 GyE/fraction and 10 GyE/fraction in eight recurrent head and neck patients originally treated with quad shot reirradiation (14.8/3.7 CGE). The 6 GyE/fraction and 10 GyE/fraction plans were also created using conventional-rate intensity-modulated proton therapy techniques. PBS Bragg peak FLASH, PBS transmission FLASH, and conventional plans were compared for OAR sparing, FLASH dose rate coverage, and target coverage. All FLASH OAR V40 Gy/s dose rate coverage was 90-100% at 6 GyE and 10 GyE for both FLASH modalities. PBS Bragg peak FLASH generated dose volume histograms (DVHs) like those of conventional therapy and demonstrated improved OAR dose sparing over PBS transmission FLASH. All the modalities had similar CTV coverage. PBS Bragg peak FLASH can deliver conformal, ultra-high dose rate FLASH with a two-millisecond delivery of the minimum MU per spot. PBS Bragg peak FLASH demonstrated similar dose rate coverage to PBS transmission FLASH with improved OAR dose-sparing, which was more pronounced in the 10 GyE/fraction than in the 6 GyE/fraction. This feasibility study generates hypotheses for the benefits of FLASH in head and neck reirradiation and developing biological models.
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Affiliation(s)
- Michael Pennock
- Department of Radiation Oncology, Albert Einstein College of Medicine, Montefiore Medical Center, New York, NY 10461, USA;
| | - Shouyi Wei
- Department of Physics, New York Proton Center, New York, NY 10035, USA; (S.W.); (H.L.); (S.H.); (M.K.)
| | - Chingyun Cheng
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901, USA;
| | - Haibo Lin
- Department of Physics, New York Proton Center, New York, NY 10035, USA; (S.W.); (H.L.); (S.H.); (M.K.)
| | - Shaakir Hasan
- Department of Physics, New York Proton Center, New York, NY 10035, USA; (S.W.); (H.L.); (S.H.); (M.K.)
| | - Arpit M. Chhabra
- Department of Radiation Oncology, New York Proton Center, New York, NY 10035, USA; (A.M.C.); (J.I.C.); (C.B.S.II)
| | - J. Isabelle Choi
- Department of Radiation Oncology, New York Proton Center, New York, NY 10035, USA; (A.M.C.); (J.I.C.); (C.B.S.II)
| | - Richard L. Bakst
- Department of Radiation Oncology—Radiation Oncology Associates, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA;
| | - Rafi Kabarriti
- Department of Radiation Oncology, Albert Einstein College of Medicine, Montefiore Medical Center, New York, NY 10461, USA;
| | - Charles B. Simone II
- Department of Radiation Oncology, New York Proton Center, New York, NY 10035, USA; (A.M.C.); (J.I.C.); (C.B.S.II)
| | - Nancy Y. Lee
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA;
| | - Minglei Kang
- Department of Physics, New York Proton Center, New York, NY 10035, USA; (S.W.); (H.L.); (S.H.); (M.K.)
| | - Robert H. Press
- Department of Radiation Oncology, Baptist Health South Florida, Miami Cancer Institute, Miami, FL 33176, USA;
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10
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Graeff C, Volz L, Durante M. Emerging technologies for cancer therapy using accelerated particles. PROGRESS IN PARTICLE AND NUCLEAR PHYSICS 2023; 131:104046. [PMID: 37207092 PMCID: PMC7614547 DOI: 10.1016/j.ppnp.2023.104046] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Cancer therapy with accelerated charged particles is one of the most valuable biomedical applications of nuclear physics. The technology has vastly evolved in the past 50 years, the number of clinical centers is exponentially growing, and recent clinical results support the physics and radiobiology rationale that particles should be less toxic and more effective than conventional X-rays for many cancer patients. Charged particles are also the most mature technology for clinical translation of ultra-high dose rate (FLASH) radiotherapy. However, the fraction of patients treated with accelerated particles is still very small and the therapy is only applied to a few solid cancer indications. The growth of particle therapy strongly depends on technological innovations aiming to make the therapy cheaper, more conformal and faster. The most promising solutions to reach these goals are superconductive magnets to build compact accelerators; gantryless beam delivery; online image-guidance and adaptive therapy with the support of machine learning algorithms; and high-intensity accelerators coupled to online imaging. Large international collaborations are needed to hasten the clinical translation of the research results.
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Affiliation(s)
- Christian Graeff
- GSI Helmholtzzentrum für Schwerionenforschung, Biophysics Department, Planckstraße 1, 64291 Darmstadt, Germany
- Technische Universität Darmstadt, Darmstadt, Germany
| | - Lennart Volz
- GSI Helmholtzzentrum für Schwerionenforschung, Biophysics Department, Planckstraße 1, 64291 Darmstadt, Germany
| | - Marco Durante
- GSI Helmholtzzentrum für Schwerionenforschung, Biophysics Department, Planckstraße 1, 64291 Darmstadt, Germany
- Technische Universität Darmstadt, Darmstadt, Germany
- Dipartimento di Fisica “Ettore Pancini”, University Federico II, Naples, Italy
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Singh A, Lee N, Estilo CL. Proton Therapy and Incidence and Predisposing Factors of Osteoradionecrosis-On Pulling One's Punches-Reply. JAMA Otolaryngol Head Neck Surg 2023; 149:559-560. [PMID: 37079317 DOI: 10.1001/jamaoto.2023.0580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/21/2023]
Affiliation(s)
- Annu Singh
- Dental Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Nancy Lee
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Cherry L Estilo
- Dental Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
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12
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Errors in Abstract and Results and Addition of Corresponding Author and Acknowledgments. JAMA Netw Open 2022; 5:e2250485. [PMID: 36538332 PMCID: PMC9856917 DOI: 10.1001/jamanetworkopen.2022.50485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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