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Kawakami Y, Sakai M, Masuda H, Miyajima M, Kanzaki T, Kobayashi K, Ohno T, Sakurai H. The Contribution of Secondary Particles Following Carbon Ion Radiotherapy to Soft Errors in CIEDs. IEEE OPEN JOURNAL OF ENGINEERING IN MEDICINE AND BIOLOGY 2024; 5:157-162. [PMID: 38487101 PMCID: PMC10939317 DOI: 10.1109/ojemb.2024.3358989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/17/2023] [Accepted: 01/16/2024] [Indexed: 03/17/2024] Open
Abstract
Introduction: While carbon ion radiotherapy is highly effective in cancer treatment, it has a high risk of causing soft error, which leads to malfunctions in cardiac implantable electrical devices (CIEDs). To predict the risk of malfunction prior to treatment, it is necessary to measure the reaction cross-sections and contributions to the soft error of secondary particles generated during treatments. Methods: A field-programmable gate array was used instead of CIEDs to measure soft errors by varying the energy spectrum of secondary particles. Results and discussion: The reaction cross-sections measured for each secondary particle were 3.0 × 10-9, 2.0 × 10-9, 1.3 × 10-8, and 1.5 × 10-8 [cm2/Mb] for thermal neutrons, intermediate-energy neutrons, high-energy neutrons above 10 MeV, and protons, respectively. The contribution of high-energy neutrons was the largest among them. Our study indicates that to reduce the risk of soft errors, secure distance and appropriate irradiation directions are necessary.
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Affiliation(s)
- Yudai Kawakami
- Graduate School of Science and Technology, Gunma UniversityKiryu376-8515Japan
| | - Makoto Sakai
- Gunma University Heavy Ion Medical CenterMaebashi371-8511Japan
| | | | | | | | - Kazutoshi Kobayashi
- Graduate School of Science and TechnologyKyoto Institute of TechnologyKyoto606-8585Japan
| | - Tatsuya Ohno
- Gunma University Heavy Ion Medical CenterMaebashi371-8511Japan
| | - Hiroshi Sakurai
- Graduate School of Science and Technology, Gunma UniversityKiryu376-8515Japan
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Mirzaei M, Rowshanfarzad P, Gill S, Ebert MA, Dass J. Risk of cardiac implantable device malfunction in cancer patients receiving proton therapy: an overview. Front Oncol 2023; 13:1181450. [PMID: 37469405 PMCID: PMC10352826 DOI: 10.3389/fonc.2023.1181450] [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: 03/07/2023] [Accepted: 06/12/2023] [Indexed: 07/21/2023] Open
Abstract
Age is a risk factor for both cardiovascular disease and cancer, and as such radiation oncologists frequently see a number of patients with cardiac implantable electronic devices (CIEDs) receiving proton therapy (PT). CIED malfunctions induced by PT are nonnegligible and can occur in both passive scattering and pencil beam scanning modes. In the absence of an evidence-based protocol, the authors emphasise that this patient cohort should be managed differently to electron- and photon- external beam radiation therapy (EBRT) patients due to distinct properties of proton beams. Given the lack of a PT-specific guideline for managing this cohort and limited studies on this important topic; the process was initiated by evaluating all PT-related CIED malfunctions to provide a baseline for future reporting and research. In this review, different modes of PT and their interactions with a variety of CIEDs and pacing leads are discussed. Effects of PT on CIEDs were classified into a variety of hardware and software malfunctions. Apart from secondary neutrons, cumulative radiation dose, dose rate, CIED model/manufacturer, distance from CIED to proton field, and materials used in CIEDs/pacing leads were all evaluated to determine the probability of malfunctions. The importance of proton beam arrangements is highlighted in this study. Manufacturers should specify recommended dose limits for patients undergoing PT. The establishment of an international multidisciplinary team dedicated to CIED-bearing patients receiving PT may be beneficial.
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Affiliation(s)
- Milad Mirzaei
- Department of Radiation Oncology, Sir Charles Gairdner Hospital, Nedlands, WA, Australia
- Department of Medical Imaging and Radiation Sciences, School of Biomedical Sciences, Monash University, Clayton, VIC, Australia
| | - Pejman Rowshanfarzad
- School of Physics, Mathematics and Computing, The University of Western Australia, Crawley, WA, Australia
| | - Suki Gill
- Department of Radiation Oncology, Sir Charles Gairdner Hospital, Nedlands, WA, Australia
- School of Physics, Mathematics and Computing, The University of Western Australia, Crawley, WA, Australia
| | - Martin A. Ebert
- Department of Radiation Oncology, Sir Charles Gairdner Hospital, Nedlands, WA, Australia
- School of Physics, Mathematics and Computing, The University of Western Australia, Crawley, WA, Australia
| | - Joshua Dass
- Department of Radiation Oncology, Sir Charles Gairdner Hospital, Nedlands, WA, Australia
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Stühlinger M, Burri H, Vernooy K, Garcia R, Lenarczyk R, Sultan A, Brunner M, Sabbag A, Özcan EE, Ramos JT, Di Stolfo G, Suleiman M, Tinhofer F, Aristizabal JM, Cakulev I, Eidelman G, Yeo WT, Lau DH, Mulpuru SK, Nielsen JC, Heinzel F, Prabhu M, Rinaldi CA, Sacher F, Guillen R, de Pooter J, Gandjbakhch E, Sheldon S, Prenner G, Mason PK, Fichtner S, Nitta T. EHRA consensus on prevention and management of interference due to medical procedures in patients with cardiac implantable electronic devices. Europace 2022; 24:1512-1537. [PMID: 36228183 DOI: 10.1093/europace/euac040] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023] Open
Affiliation(s)
- Markus Stühlinger
- Department of Internal Medicine III - Cardiology and Angiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Haran Burri
- Department of Cardiology, University Hospital of Geneva, Geneva, Switzerland
| | - Kevin Vernooy
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, The Netherlands
| | - Rodrigue Garcia
- Department of Cardiology, University Hospital of Poitiers, Poitiers, France
- Department of Cardiology, Rigshospitalet, Copenhagen, Denmark
| | - Radoslaw Lenarczyk
- Department of Cardiology, Congenital Heart Disease and Electrotherapy, Medical University of Silesia, Silesian Center of Heart Diseases, Zabrze, Poland
- Medical University of Silesia, Division of Medical Sciences, Department of Cardiology, Congenital Heart Diseases and Electrotherapy, Silesian Center for Heart Diseases, Zabrze, Poland
| | - Arian Sultan
- Department of Electrophysiology, Heart Center at University Hospital Cologne, Cologne, Germany
| | - Michael Brunner
- Department of Cardiology and Medical Intensive Care, St Josefskrankenhaus, Freiburg, Germany
| | - Avi Sabbag
- The Davidai Center for Rhythm Disturbances and Pacing, Chaim Sheba Medical Center, Ramat Gan, Israel
| | - Emin Evren Özcan
- Heart Rhythm Management Center, Dokuz Eylul University, İzmir, Turkey
| | - Jorge Toquero Ramos
- Cardiac Arrhythmia and Electrophysiology Unit, Cardiology Department, Puerta de Hierro University Hospital, Majadahonda, Madrid, Spain
| | - Giuseppe Di Stolfo
- Cardiac Intensive Care and Arrhythmology Unit, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Mahmoud Suleiman
- Cardiology/Electrophysiology, Rambam Health Care Campus, Haifa, Israel
| | | | | | - Ivan Cakulev
- University Hospitals of Cleveland, Case Western University, Cleveland, OH, USA
| | - Gabriel Eidelman
- San Isidro's Central Hospital, Diagnóstico Maipú, Buenos Aires Province, Argentina
| | - Wee Tiong Yeo
- Department of Cardiology, National University Heart Centre, Singapore, Singapore
| | - Dennis H Lau
- Centre for Heart Rhythm Disorders, The University of Adelaide and Royal Adelaide Hospital, Adelaide, SA, Australia
| | | | - Jens Cosedis Nielsen
- Department of Cardiology, Aarhus University Hospital, and Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Frank Heinzel
- Department of Cardiology, Charité University Medicine, Campus Virchow-Klinikum, 13353 Berlin, Germany
| | - Mukundaprabhu Prabhu
- Associate Professor in Cardiology, In charge of EP Division, Kasturba Medical College Manipal, Manipal, Karnataka, India
| | | | - Frederic Sacher
- Bordeaux University Hospital, Univ. Bordeaux, Bordeaux, France
| | - Raul Guillen
- Sanatorio Adventista del Plata, Del Plata Adventist University Entre Rios Argentina, Entre Rios, Argentina
| | - Jan de Pooter
- Professor of Cardiology, Ghent University, Deputy Head of Clinic, Heart Center UZ Gent, Ghent, Belgium
| | - Estelle Gandjbakhch
- AP-HP Sorbonne Université, Hôpital Pitié-Salpêtrière, Institut de Cardiologie, ICAN, Paris, France
| | - Seth Sheldon
- The Department of Cardiovascular Medicine, University of Kansas Health System, Kansas City, KS 66160, USA
| | | | - Pamela K Mason
- Director, Electrophysiology Laboratory, University of Virginia, Charlottesville, VA, USA
| | - Stephanie Fichtner
- LMU Klinikum, Medizinische Klinik und Poliklinik I, Campus Großhadern, München, Germany
| | - Takashi Nitta
- Emeritus Professor, Nippon Medical School, Presiding Consultant of Cardiology, Hanyu General Hospital, Saitama, Japan
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The impact of particle radiotherapy on the functioning of cardiac implantable electronic devices: a systematic review of in vitro and in vivo studies according to PICO criteria. Radiol Med 2022; 127:1046-1058. [PMID: 35871428 PMCID: PMC9508006 DOI: 10.1007/s11547-022-01520-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 06/20/2022] [Indexed: 12/24/2022]
Abstract
The number of oncological patients who may benefit from proton beam radiotherapy (PBT) or carbon ion radiotherapy (CIRT), overall referred to as particle radiotherapy (RT), is expected to strongly increase in the next future, as well as the number of cardiological patients requiring cardiac implantable electronic devices (CIEDs). The management of patients with a CIED requiring particle RT deserves peculiar attention compared to those undergoing conventional photon beam RT, mostly due to the potential generation of secondary neutrons by particle beams interactions. Current consensus documents recommend managing these patients as being at intermediate/high risk of RT-induced device malfunctioning regardless of the dose on the CIED and the beam delivery method used, despite the last one significantly affects secondary neutrons generation (very limited neutrons production with active scanning as opposed to the passive scattering technique). The key issues for the current review were expressed in four questions according to the Population, Intervention, Control, Outcome criteria. Three in vitro and five in vivo studies were included. Based on the available data, PBT and CIRT with active scanning have a limited potential to interfere with CIED that has only emerged from in vitro study so far, while a significant potential for neutron-related, not severe, CIED malfunctions (resets) was consistently reported in both clinical and in vitro studies with passive scattering.
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Stick LB, Lægdsmand PMT, Bjerre HL, Høyer M, Jensen K, Jensen MF, Kronborg MB, Offersen BV, Kronborg CJS. Spot-scanning proton therapy for targets with adjacent cardiac implantable electronic devices – Strategies for breast and head & neck cancer. Phys Imaging Radiat Oncol 2022; 21:66-71. [PMID: 35243034 PMCID: PMC8861136 DOI: 10.1016/j.phro.2022.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 02/11/2022] [Accepted: 02/11/2022] [Indexed: 11/16/2022] Open
Abstract
Secondary neutron dose was calculated for pacemakers and implantable cardioverter defibrillators for patients with breast and head & neck cancer. Decision algorithms for selecting patients with targets adjacent to pacemakers and implantable cardioverter defibrillators for proton therapy were established. Eligibility for proton therapy depends on individual evaluation for some patients. The expected gain from proton therapy should outweigh the risk of device malfunction.
Background and purpose Cardiac implantable electronic device (CIED) malfunctions can be induced by secondary neutron dose from spot-scanning proton therapy. A recent in-vitro study investigating secondary neutron dose to CIEDs up to 7 mSv per fraction found that exposure of secondary neutrons in this range was clinically manageable. This study presents decision algorithms proposed by a national expert group for selection of patients with breast and head & neck (H&N) cancer with CIEDs adjacent to target for proton therapy based on the 7 mSv threshold. Methods and materials Ten patients with breast cancer and five with H&N cancer were included in the study. Five patients with breast cancer received photon therapy with CIED and proton plans were retrospectively created. The remaining patients received proton therapy without CIED and a worst-case position of a virtual CIED was retrospectively delineated. Secondary neutron dose was estimated as ambient dose equivalent H*(10) using Monte Carlo simulations. Results For patients with breast cancer and with contralateral CIED, the secondary neutron dose to the CIED was below 7 mSv per fraction for CTV < 1500 cm3 in 2 Gy fractions and CTV < 1000 cm3 in 2.67 Gy fractions. The secondary neutron dose to the CIED was below 7 mSv per fraction for all patients with H&N cancer. Conclusions Simulations of neutron exposure suggest that proton therapy is feasible for most patients with CIED adjacent to target. This forms the basis for decision algorithms for selection of patients with CIED for proton therapy.
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Affiliation(s)
- Line Bjerregaard Stick
- Danish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
- Corresponding author at: Danish Centre for Particle Therapy, Aarhus University Hospital, Palle Juul-Jensens Blvd. 99, 8200 Aarhus, Denmark.
| | | | - Henrik Laurits Bjerre
- Danish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Morten Høyer
- Danish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
| | - Kenneth Jensen
- Danish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
| | | | | | - Birgitte Vrou Offersen
- Danish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
- Department of Experimental Clinical Oncology & Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
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