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Kakino R, Nakamura M, Hu N, Iramina H, Tanaka H, Sakurai Y, Mizowaki T. Photoneutron-induced damage reduction for cardiac implantable electronic devices using neutron-shielding sheets in high-energy X-ray radiotherapy: A phantom study. Phys Med 2021; 89:151-159. [PMID: 34371340 DOI: 10.1016/j.ejmp.2021.07.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 07/06/2021] [Accepted: 07/28/2021] [Indexed: 12/24/2022] Open
Abstract
PURPOSE To evaluate damage reduction in cardiac implantable electronic devices (CIEDs) caused by photoneutrons in high-energy X-ray radiotherapy using a neutron-shielding sheet (NSS). METHODS The NSS consists of a bolus with a thickness of 1 or 2 cm (Bls1 or Bls2) as a moderator and several absorbers (20%, 50%, or 80% B4C silicone sheet [B4C20, B4C50, or B4C80] or a 40% LiF silicone sheet [LiF40]). First, a linear accelerator (LINAC) with a water-equivalent phantom was modeled in the simulation and measured experimentally. Several NSSs were placed on the phantom, a Eu:LiCaAlF6 scintillator was placed between the phantom and the NSS, and X-rays were irradiated. The relative counts (Cr = counts when placing the NSS or Bls2) were compared between the experiment and simulation. Second, CIED damage was evaluated in the simulation. The relative damage (Dr = damage when placing or not placing the NSS) was compared among all the NSSs. In addition, the γ-ray and leaking X-ray dose from B4C was measured using a dosimetric film. After determining the optimal NSS combination, Dr value analysis was performed by changing the length of one side and the thickness. RESULTS The Cr values of the simulation and experiment agreed within a 30% percentage difference, except for Bare or LiF40-only. The Dr value was reduced by 43% when Bls2 + B4C80 was applied. The photon dose was less than 5 cGy/1500 MU. The Dr values were smaller for the smaller lengths of one side of B4C80 and decreased as the M-layer thickness increased. CONCLUSIONS The CIED damage induced by photoneutrons generated by a LINAC was effectively reduced by applying the optimal NSS.
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Affiliation(s)
- Ryo Kakino
- Division of Medical Physics, Department of Information Technology and Medical Engineering, Human Health Sciences, Graduate School of Medicine, Kyoto University, 53 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan; Department of Radiation Oncology and Image-applied Therapy, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan; Japan Society for the Promotion of Science, 5-3-1 Kojimachi, Chiyoda-ku, Tokyo 102-0083, Japan
| | - Mitsuhiro Nakamura
- Division of Medical Physics, Department of Information Technology and Medical Engineering, Human Health Sciences, Graduate School of Medicine, Kyoto University, 53 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan; Department of Radiation Oncology and Image-applied Therapy, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan.
| | - Naonori Hu
- Kansai BNCT Medical Center, Osaka Medical College, 2-7 Daigaku-Machi, Takatsuki, Osaka 569-8686, Japan; Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2 Asashiro-nishi Kumatori-cho, Osaka 590-0494, Japan
| | - Hiraku Iramina
- Department of Radiation Oncology and Image-applied Therapy, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Hiroki Tanaka
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2 Asashiro-nishi Kumatori-cho, Osaka 590-0494, Japan
| | - Yoshinori Sakurai
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2 Asashiro-nishi Kumatori-cho, Osaka 590-0494, Japan
| | - Takashi Mizowaki
- Department of Radiation Oncology and Image-applied Therapy, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
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Miften M, Mihailidis D, Kry SF, Reft C, Esquivel C, Farr J, Followill D, Hurkmans C, Liu A, Gayou O, Gossman M, Mahesh M, Popple R, Prisciandaro J, Wilkinson J. Management of radiotherapy patients with implanted cardiac pacemakers and defibrillators: A Report of the AAPM TG-203 †. Med Phys 2019; 46:e757-e788. [PMID: 31571229 DOI: 10.1002/mp.13838] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 07/16/2019] [Accepted: 08/28/2019] [Indexed: 11/11/2022] Open
Abstract
Managing radiotherapy patients with implanted cardiac devices (implantable cardiac pacemakers and implantable cardioverter-defibrillators) has been a great practical and procedural challenge in radiation oncology practice. Since the publication of the AAPM TG-34 in 1994, large bodies of literature and case reports have been published about different kinds of radiation effects on modern technology implantable cardiac devices and patient management before, during, and after radiotherapy. This task group report provides the framework that analyzes the potential failure modes of these devices and lays out the methodology for patient management in a comprehensive and concise way, in every step of the entire radiotherapy process.
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Affiliation(s)
- Moyed Miften
- Task Group 203, Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, CO, 80045, USA
| | - Dimitris Mihailidis
- Task Group 203, University of Pennsylvania, Perelman Center for Advanced Medicine, Philadelphia, PA, 19104, USA
| | - Stephen F Kry
- Department of Radiation Physics, UT MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Chester Reft
- Department of Radiation Oncology, University of Chicago, Chicago, IL, 60637, USA
| | - Carlos Esquivel
- Department of Radiation Oncology, UT Health Sciences Center, San Antonio, TX, 78229, USA
| | - Jonathan Farr
- Division of Radiological Sciences, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - David Followill
- Department of Radiation Physics, UT MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Coen Hurkmans
- Department of Radiotherapy, Catharina Hospital, Eindhoven, the Netherlands
| | - Arthur Liu
- Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, CO, 80045, USA
| | - Olivier Gayou
- Department of Radiation Oncology, Allegheny General Hospital, Pittsburg, PA, 15212, USA
| | - Michael Gossman
- Department of Radiation Oncology, Tri-State Regional Cancer Center, Ashland, KY, 41101, USA
| | - Mahadevappa Mahesh
- Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
| | - Richard Popple
- Department of Radiation Oncology, University of Alabama, Birmingham, AL, 35249, USA
| | - Joann Prisciandaro
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, 48109, USA
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Radiotherapy for patients with cardiovascular implantable electronic devices: an 11-year experience. J Interv Card Electrophysiol 2019; 55:333-341. [PMID: 30603854 DOI: 10.1007/s10840-018-0506-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 12/17/2018] [Indexed: 10/27/2022]
Abstract
PURPOSE As cardiovascular implantable electronic devices (CIEDs) are increasingly indicated in older patients, and the burden of cancer is rising with the aging population, the management of patients with CIEDs who require radiotherapy (RT) is a timely concern. The objective of the study was to evaluate the management of, and malfunctions in, patients with CIEDs undergoing RT. METHODS A retrospective study of patients with CIEDs receiving RT at Kingston Health Sciences Center from March 2007-April 2018 was conducted. Data on demographics, RT, devices, and management were compared for the primary outcome of device malfunction. RESULTS Of the 189 patients with CIEDs receiving a total of 297 courses of RT, 4 patients (2.1%) experienced device malfunctions. Higher beam energy was associated with a malfunction (p < 0.05). Patients with malfunctions received a lower dose of radiation per fraction (267 ± 93 cGy vs. 477 ± 282 cGy; p < 0.05) and were significantly younger (71.4 ± 2.2 years vs. 77.8 ± 9.8 years; p < 0.01) compared to patients without malfunctions. CONCLUSION RT-induced device malfunctions are rare, but given the potential complications, a better understanding of the potential predictors of malfunction and the development of evidence-based guidelines will help optimize patient safety.
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Dosimetric study to assess the feasibility of intraoperative radiotherapy with electrons (ELIOT) as partial breast irradiation for patients with cardiac implantable electronic device (CIED). Breast Cancer Res Treat 2018; 171:693-699. [PMID: 29978418 DOI: 10.1007/s10549-018-4878-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 07/02/2018] [Indexed: 10/28/2022]
Abstract
PURPOSE To report in-vivo dosimetry in the infraclavicular region, a potential site of a cardiac implantable electronic device (CIED) and to evaluate the absorbed dose from intraoperative radiotherapy with electrons (ELIOT). METHODS 27 non-cardiopathic breast cancer (BC) patients without CIED received quadrantectomy and ELIOT as partial breast irradiation. Before delivering ELIOT, two catheters, each containing eight thermoluminescent dosimeters (TLDs), were positioned in the infraclavicular region. TLDs internal catheter was located deep in the tumor bed while the external catheter was placed on patient's skin. RESULTS Data were available for 24/27 patients. The absorbed doses were referred to the dose of 21 Gy. Values measured by the external catheter were low, although statistically significant higher doses were found close to the applicator (mean values 0.26-0.49 Gy). External TLD doses in proximity of the applicator were lower than those detected by their internal counterparts. Values measured by the internal catheter TLDs varied according to the distance from the applicator while no correlation with tumor site and beam energy was found. The distance from the applicator to deliver < 2 Gy to a CIED was 2 cm, while from 2.5 cm the dose measured in all the patients became negligible. CONCLUSIONS This dosimetric study provided data to support the clinical use of ELIOT in BC patients having CIEDs as long as the suggested minimum safe distance of 2.5 cm is taken from the RT field in case of ELIOT single dose of 21 Gy, in the energy range of 6-10 MeV.
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Yeung C, Chacko S, Glover B, Campbell D, Crystal E, Ben-Dov N, Baranchuk A. Radiotherapy for Patients with Cardiovascular Implantable Electronic Devices: A Review. Can J Cardiol 2017; 34:244-251. [PMID: 29395701 DOI: 10.1016/j.cjca.2017.11.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Revised: 11/28/2017] [Accepted: 11/29/2017] [Indexed: 11/16/2022] Open
Abstract
Because cardiovascular implantable electronic devices are increasingly indicated in older patients, and the burden of cancer is rising with the growth and aging of the world population, the management of patients with cardiac devices who require radiotherapy for cancer treatment is a timely concern. Device malfunctions might occur in as high as 3% of radiotherapy courses, posing a substantial issue in clinical practice. A nonsystematic comprehensive review was undertaken. We searched PubMed and the MEDLINE database for randomized controlled trials, meta-analyses, systematic reviews, observational studies, in vitro/in vivo studies, and case reports. Articles were selected by 2 independent reviewers, and emphasis was given to information of interest to a general medical readership. The pathophysiology and predictors of cardiovascular implantable electronic device malfunction due to radiotherapy are reviewed, recommendations for the management of patients with such devices undergoing radiotherapy are summarized, and the clinical significance and future directions of this field are discussed. Radiotherapy-induced device malfunctions are rare, but because of the potential complications, the development of evidence-based guidelines for the management of patients with cardiovascular implantable electronic devices undergoing radiotherapy is a timely concern.
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Affiliation(s)
- Cynthia Yeung
- Heart Rhythm Service, Kingston General Hospital, Queen's University, Kingston, Ontario, Canada
| | - Sanoj Chacko
- Heart Rhythm Service, Kingston General Hospital, Queen's University, Kingston, Ontario, Canada
| | - Benedict Glover
- Heart Rhythm Service, Kingston General Hospital, Queen's University, Kingston, Ontario, Canada
| | - Debra Campbell
- Heart Rhythm Service, Kingston General Hospital, Queen's University, Kingston, Ontario, Canada
| | - Eugene Crystal
- Arrhythmia Services, Schulich Heart Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Nissan Ben-Dov
- Arrhythmia Services, Schulich Heart Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Adrian Baranchuk
- Heart Rhythm Service, Kingston General Hospital, Queen's University, Kingston, Ontario, Canada.
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Indik JH, Gimbel JR, Abe H, Alkmim-Teixeira R, Birgersdotter-Green U, Clarke GD, Dickfeld TML, Froelich JW, Grant J, Hayes DL, Heidbuchel H, Idriss SF, Kanal E, Lampert R, Machado CE, Mandrola JM, Nazarian S, Patton KK, Rozner MA, Russo RJ, Shen WK, Shinbane JS, Teo WS, Uribe W, Verma A, Wilkoff BL, Woodard PK. 2017 HRS expert consensus statement on magnetic resonance imaging and radiation exposure in patients with cardiovascular implantable electronic devices. Heart Rhythm 2017; 14:e97-e153. [DOI: 10.1016/j.hrthm.2017.04.025] [Citation(s) in RCA: 238] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Indexed: 11/16/2022]
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Trifiletti DM, Romano KD, Showalter SL, Reardon KA, Libby B, Showalter TN. Accelerated partial breast irradiation with brachytherapy: patient selection and technique considerations. BREAST CANCER-TARGETS AND THERAPY 2015; 7:211-21. [PMID: 26251627 PMCID: PMC4524268 DOI: 10.2147/bctt.s55860] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Accelerated partial breast irradiation (APBI) through breast brachytherapy is a relatively recent development in breast radiotherapy that has gained international favor because of its reduction in treatment duration and normal tissue irradiation while maintaining favorable cancer-specific and cosmetic outcomes. Despite the fact that several large national trials have not reported final results yet, many providers are currently offering APBI to select patients and APBI is listed as a treatment option for selecting patients in the National Comprehensive Cancer Network guidelines. Multiple consensus guidelines exist in selecting patients for APBI, some with conflicting recommendations. In this review, the existing patient selection guidelines are reported, compared, and critiqued, grouping them in helpful subcategories. Unique patient and technical selection factors for APBI with brachytherapy are explored.
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Affiliation(s)
- Daniel M Trifiletti
- Department of Radiation Oncology, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Kara D Romano
- Department of Radiation Oncology, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Shayna L Showalter
- Division of Surgical Oncology, Department of Surgery, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Kelli A Reardon
- Department of Radiation Oncology, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Bruce Libby
- Department of Radiation Oncology, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Timothy N Showalter
- Department of Radiation Oncology, University of Virginia School of Medicine, Charlottesville, VA, USA
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