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Gimeno-Morales M, Motisi L, Rodriguez-Spiteri N, Martínez-Regueira F, Worthington T, Therapist R, Strnad V, Hannoun-Levi JM, Gutierrez C. Post- versus intra-operative implant for breast cancer interstitial brachytherapy: How to choose? J Contemp Brachytherapy 2024; 16:72-83. [PMID: 38584881 PMCID: PMC10993897 DOI: 10.5114/jcb.2024.135635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 01/20/2024] [Indexed: 04/09/2024] Open
Abstract
Purpose Breast brachytherapy (BB) represents an important radiation therapy modality in modern breast cancer treatments. Currently, BB is mainly used for accelerated partial breast irradiation (APBI), local boost after whole breast radiation therapy (WBRT), and as salvage re-irradiation after second lumpectomy (APBrl). Two multi-catheter interstitial brachytherapy (MIB) techniques can be offered: intra-operative (IOB) and post-operative (POB) brachytherapy. The aim of this article was to summarize current available data on these two different brachytherapy approaches for breast cancer. Material and methods A literature search was performed, and different experiences published by BB expert teams were analyzed and compared. These two different brachytherapy approaches for breast cancer have also been presented and discussed during meetings of the GEC-ESTRO BCWG. In addition, expert recommendations were defined. Results A comprehensive description and practical comparison of both the techniques, i.e., IOB and POB, considering the latest available published data were presented. Different technical, logistic, and clinical aspects of both the methods were thoroughly examined and analyzed. This detailed comparison of the two breast brachytherapy techniques was supported by scientific data from extensive experience of experts, facilitating an objective analysis that, to our knowledge, has not been previously published. Conclusions Based on the comprehensive analysis of both the brachytherapy techniques available, this article serves as a valuable resource to guide breast teams in selecting the optimal BB technique (POB or IOB), considering hospital environment, multi-disciplinary collaboration, and patient logistics.
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Affiliation(s)
- Marta Gimeno-Morales
- Department of Radiation Oncology, Cancer Center Clinica Universidad de Navarra, Pamplona, Spain
| | - Laura Motisi
- Department of Radiation Oncology, Zürich University Hospital, Zürich, Switzerland
| | - Natalia Rodriguez-Spiteri
- Department of Breast Surgical Oncology, Cancer Center Clinica Universidad de Navarra, Pamplona, Spain
| | | | - Tucker Worthington
- Department of Radiation Oncology, Cancer Center Clinica Universidad de Navarra, Pamplona, Spain
- Department of Radiation Oncology, Zürich University Hospital, Zürich, Switzerland
- Department of Breast Surgical Oncology, Cancer Center Clinica Universidad de Navarra, Pamplona, Spain
- Department of Radiation Oncology, Erlangen University Hospital, Erlangen, Germany
- Department of Radiation Oncology, Antoine Lacassagne Cancer Centre, University of Côte d’Azur, Nice, France
- Department of Radiation Oncology, Institut Català d’Oncologia, Barcelona, Spain
| | - Radiation Therapist
- Department of Radiation Oncology, Zürich University Hospital, Zürich, Switzerland
| | - Vratislav Strnad
- Department of Radiation Oncology, Erlangen University Hospital, Erlangen, Germany
| | - Jean Michel Hannoun-Levi
- Department of Radiation Oncology, Antoine Lacassagne Cancer Centre, University of Côte d’Azur, Nice, France
| | - Cristina Gutierrez
- Department of Radiation Oncology, Institut Català d’Oncologia, Barcelona, Spain
| | - On behalf of Working Group Breast Cancer of GEC ESTRO
- Department of Radiation Oncology, Cancer Center Clinica Universidad de Navarra, Pamplona, Spain
- Department of Radiation Oncology, Zürich University Hospital, Zürich, Switzerland
- Department of Breast Surgical Oncology, Cancer Center Clinica Universidad de Navarra, Pamplona, Spain
- Department of Radiation Oncology, Erlangen University Hospital, Erlangen, Germany
- Department of Radiation Oncology, Antoine Lacassagne Cancer Centre, University of Côte d’Azur, Nice, France
- Department of Radiation Oncology, Institut Català d’Oncologia, Barcelona, Spain
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Sato K, Takeda N, Fuchikami H, Natsume N, Kato M, Okawa T. Impact of de-escalating systemic therapy guided by 21-gene assay on locoregional recurrence after partial-breast irradiation. Brachytherapy 2023; 22:381-388. [PMID: 36894345 DOI: 10.1016/j.brachy.2023.01.002] [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: 09/15/2022] [Revised: 12/24/2022] [Accepted: 01/10/2023] [Indexed: 03/09/2023]
Abstract
PURPOSE Partial-breast irradiation (PBI) has been performed as alternative to whole-breast irradiation (WBI) in breast-conserving therapy (BCT). Recently, the 21-gene recurrence score (RS) was introduced to determine the adjuvant therapy for estrogen receptor (ER)-positive, and human epidermal growth factor receptor 2 (HER2)-negative diseases. However, the impact of RS-based systemic therapy on locoregional recurrence (LRR) following BCT with PBI remains uninvestigated. METHODS AND MATERIALS Patients with ER-positive, HER2-negative, and node-negative breast cancer who underwent BCT with PBI were examined during May 2012-March 2022. In addition to immunohistochemistry (IHC), RS was available to decide on adjuvant therapy. RESULTS In total, 431 patients were evaluated with a median followup of 48.6 months. The 4-year LRR-free survival rates were 97.3% and 96.4% in the IHC and RS cohorts, respectively (p = 0.50). Ki67 of >20% was significantly associated with LRR in the multivariate analysis (HR 4.39, p < 0.05). For patients with Ki67 > 20%, 29 of 71 (40.8%) and 46 of 59 (78.0%) patients received only endocrine therapy in the IHC and RS cohorts, respectively (p < 0.0001). For patients with Ki67 >20% who received only endocrine therapy, the 4-year LRR-free survival rates were 91.8% in the IHC cohort and 94.6% in the RS cohort (p = 0.29) CONCLUSIONS: Although the introduction of RS increased the number of patients receiving endocrine therapy alone for Ki67 >20% of disease by two times, the LRR-free survival after BCT with PBI could be maintained. However, further studies from multiple institutions with longer followup data are required.
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Affiliation(s)
- Kazuhiko Sato
- Department of Breast Oncology, Tokyo-West Tokushukai Hospital, Akishima, Tokyo, Japan.
| | - Naoko Takeda
- Department of Breast Oncology, Tokyo-West Tokushukai Hospital, Akishima, Tokyo, Japan
| | - Hiromi Fuchikami
- Department of Breast Oncology, Tokyo-West Tokushukai Hospital, Akishima, Tokyo, Japan
| | - Nana Natsume
- Department of Radiation Oncology, Tokyo-West Tokushukai Hospital, Akishima, Tokyo, Japan
| | - Masahiro Kato
- Department of Radiation Oncology, Tokyo-West Tokushukai Hospital, Akishima, Tokyo, Japan
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Cozzi S, Augugliaro M, Ciammella P, Botti A, Trojani V, Najafi M, Blandino G, Ruggieri MP, Giaccherini L, Alì E, Iori F, Sardaro A, Finocchi Ghersi S, Deantonio L, Gutierrez Miguelez C, Iotti C, Bardoscia L. The Role of Interstitial Brachytherapy for Breast Cancer Treatment: An Overview of Indications, Applications, and Technical Notes. Cancers (Basel) 2022; 14:cancers14102564. [PMID: 35626168 PMCID: PMC9139312 DOI: 10.3390/cancers14102564] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 05/19/2022] [Accepted: 05/20/2022] [Indexed: 02/04/2023] Open
Abstract
Simple Summary Breast cancer is the most common cancer in the female population. Adjuvant radiotherapy has become increasingly important as conservative treatment. Muticatheter interstitial brachytherapy is a type of radiation technique wherein the radioactive sources are directly implanted into or close to the target tissue and may be considered an extremely precise, versatile, and variable radiation technique. Literature data support muticatheter interstitial brachytherapy as the only method with strong scientific evidence to perform partial breast irradiation and reirradiation after previous conservative surgery and external beam radiotherapy. The aim of our work is to provide a comprehensive view of the use of interstitial brachytherapy, with particular focus on the implant description, limits, and advantages of the technique. Abstract Breast cancer represents the second leading cause of cancer-related death in the female population, despite continuing advances in treatment options that have significantly accelerated in recent years. Conservative treatments have radically changed the concept of healing, also focusing on the psychological aspect of oncological treatments. In this scenario, radiotherapy plays a key role. Brachytherapy is an extremely versatile radiation technique that can be used in various settings for breast cancer treatment. Although it is invasive, technically complex, and requires a long learning curve, the dosimetric advantages and sparing of organs at risk are unequivocal. Literature data support muticatheter interstitial brachytherapy as the only method with strong scientific evidence to perform partial breast irradiation and reirradiation after previous conservative surgery and external beam radiotherapy, with longer follow-up than new, emerging radiation techniques, whose effectiveness is proven by over 20 years of experience. The aim of our work is to provide a comprehensive view of the use of interstitial brachytherapy to perform breast lumpectomy boost, breast-conserving accelerated partial breast irradiation, and salvage reirradiation for ipsilateral breast recurrence, with particular focus on the implant description, limits, and advantages of the technique.
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Affiliation(s)
- Salvatore Cozzi
- Radiation Oncology Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (M.A.); (P.C.); (G.B.); (M.P.R.); (L.G.); (E.A.); (F.I.); (C.I.)
- Correspondence: ; Tel.: +39-329-731-7608
| | - Matteo Augugliaro
- Radiation Oncology Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (M.A.); (P.C.); (G.B.); (M.P.R.); (L.G.); (E.A.); (F.I.); (C.I.)
| | - Patrizia Ciammella
- Radiation Oncology Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (M.A.); (P.C.); (G.B.); (M.P.R.); (L.G.); (E.A.); (F.I.); (C.I.)
| | - Andrea Botti
- Medical Physics Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (A.B.); (V.T.)
| | - Valeria Trojani
- Medical Physics Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (A.B.); (V.T.)
| | - Masoumeh Najafi
- Department of Radiation Oncology, Shohadaye Haft-e-Tir Hospital, Iran University of Medical Science, Teheran 1997667665, Iran;
| | - Gladys Blandino
- Radiation Oncology Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (M.A.); (P.C.); (G.B.); (M.P.R.); (L.G.); (E.A.); (F.I.); (C.I.)
| | - Maria Paola Ruggieri
- Radiation Oncology Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (M.A.); (P.C.); (G.B.); (M.P.R.); (L.G.); (E.A.); (F.I.); (C.I.)
| | - Lucia Giaccherini
- Radiation Oncology Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (M.A.); (P.C.); (G.B.); (M.P.R.); (L.G.); (E.A.); (F.I.); (C.I.)
| | - Emanuele Alì
- Radiation Oncology Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (M.A.); (P.C.); (G.B.); (M.P.R.); (L.G.); (E.A.); (F.I.); (C.I.)
| | - Federico Iori
- Radiation Oncology Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (M.A.); (P.C.); (G.B.); (M.P.R.); (L.G.); (E.A.); (F.I.); (C.I.)
| | - Angela Sardaro
- Interdisciplinary Department of Medicine, Section of Radiology and Radiation Oncology, University of Bari “Aldo Moro”, 70124 Bari, Italy;
| | - Sebastiano Finocchi Ghersi
- Radiation Oncolgy Unit, AOU Sant’Andrea, Facoltà di Medicina e Psicologia, Università La Sapienza, 00185 Rome, Italy;
| | - Letizia Deantonio
- Radiation Oncology Clinic, Oncology Institute of Southern Switzerland (IOSI), Bellinzona, 6500 Lugano, Switzerland;
| | - Cristina Gutierrez Miguelez
- Brachytherapy Unit, Department of Radiation Oncology, Catalan Institute of Oncology, University of Barcelona, L’Hospitalet de Llobregat, 08908 Barcelona, Spain;
| | - Cinzia Iotti
- Radiation Oncology Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (M.A.); (P.C.); (G.B.); (M.P.R.); (L.G.); (E.A.); (F.I.); (C.I.)
| | - Lilia Bardoscia
- Radiation Oncology Unit, S. Luca Hospital, Healthcare Company Tuscany Nord Ovest, 55100 Lucca, Italy;
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Sato K, Shimo T, Kato M, Natsume N, Fuchikami H, Takeda N, Okawa T. Computed tomography-guided partial-breast brachytherapy using implanted catheters as fiducial markers versus co-registered magnetic resonance imaging. Brachytherapy 2021; 20:1219-1225. [PMID: 34602344 DOI: 10.1016/j.brachy.2021.08.007] [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: 06/25/2021] [Revised: 08/15/2021] [Accepted: 08/16/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE Partial-breast irradiation (PBI) needs accurate cavity delineation with computed tomography (CT). In perioperative PBI using multicatheter-interstitial brachytherapy (MIB), catheters implanted during surgery were enabled as fiducial markers. Magnetic resonance imaging (MRI) can also assist delineation with CT. METHODS Patients receiving MIB-PBI were analyzed. Cavity visualization scores (CVSs) were categorized with CT. With catheter-based delineation (CBD), the relationship between cavity boundaries and catheters were used to contour the tumor bed. Co-registered MRI delineation (CMD) was also performed. The correlation between cavity volume and the excised tissue weight was compared for the two techniques. RESULTS The association between CVS and preoperative characteristics in 159 patients showed mammographic breast density (MBD) remained correlated to CVS on multiple regression analyses; CVS = 5.2-0.61 x MBD (p < 0.0001). In 43 patients, the cavity volumes determined with CBD vs CMD were 12.8 ± 6.4 cm3 vs 16.1 ± 12.4 cm3 (p < 0.0001), and their plots with excised weights showed the best fitting lines were 0.29 vs 0.48 (p < 0.0001), respectively. The correlation coefficients for CBD vs CMD were 0.65 vs 0.55 (p = 0.20) in low (CVS 1-3, n = 27) and 0.72 vs 0.58 (p = 0.36) in high visualized cavities (CVS 4-5, n = 16), respectively. CONCLUSIONS The use of implanted catheters as fiducial markers was associated with smaller cavities and greater correlations with the excised tissue weights than co-registration with MRI. This might be a useful technique, especially for patients with dense breasts on mammography.
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Affiliation(s)
- Kazuhiko Sato
- Department of Breast Oncology, Tokyo-West Tokushukai Hospital, Akishima, Tokyo, Japan.
| | - Takahiro Shimo
- Department of Radiation Oncology, Tokyo-West Tokushukai Hospital, Akishima, Tokyo, Japan
| | - Masahiro Kato
- Department of Radiation Oncology, Tokyo-West Tokushukai Hospital, Akishima, Tokyo, Japan
| | - Nana Natsume
- Department of Radiation Oncology, Tokyo-West Tokushukai Hospital, Akishima, Tokyo, Japan
| | - Hiromi Fuchikami
- Department of Breast Oncology, Tokyo-West Tokushukai Hospital, Akishima, Tokyo, Japan
| | - Naoko Takeda
- Department of Breast Oncology, Tokyo-West Tokushukai Hospital, Akishima, Tokyo, Japan
| | - Tomohiko Okawa
- Preventive Medical Center, Sano City Hospital, Sano, Tochigi, Japan
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Predicting adherence of dose-volume constraints for personalized partial-breast irradiation technique. Brachytherapy 2020; 20:163-170. [PMID: 32741559 DOI: 10.1016/j.brachy.2020.06.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/25/2020] [Accepted: 06/25/2020] [Indexed: 11/24/2022]
Abstract
PURPOSE Multicatheter interstitial brachytherapy (MIB) and external-beam (EB) radiotherapy are established partial-breast irradiation (PBI) techniques. Although EB-PBI is widely available, it requires extra irradiated margins for target uncertainties. We examined the impact of EB-PBI on dose-volume constraints as compared to MIB-PBI. METHODS AND MATERIALS Among 653 patients receiving MIB-PBI between October 2008 and April 2020, consequent 159 patients after September 2018 were examined. Clinical target volume (CTV) included the lumpectomy cavity plus 1.0 cm. Planning target volume (PTV) for EB-PBI was defined as CTV with 1.0-cm expansion. Because the ratio of PTV to breast volume (RPB) was related to cosmesis, <25% of RPB was defined as suitable for the ipsilateral breast constraints. Preoperative breast size was classified as very small (<350 cm3), small (350-699 cm3), and medium or large (≥700 cm3). According to each category, the dose-volume constraints of the organs at risk were compared between the two PBI techniques. RESULTS Patients including 84 very small, 59 small, and 16 moderate to large breasts were examined. Although RPB was suitable in all patients receiving MIB-PBI, it was achieved in 74 patients (46.5%) receiving EB-PBI (p < 0.0001). The suitable RPB in patients with very small, small, and moderate to large breast was 32.1%, 55.9%, and 100%, respectively (p < 0.0001). Normal-tissue constraints for the other organs could be satisfied in patients with moderate to large breasts. CONCLUSION Although EB-PBI may be an appropriate option for patients with moderate to large breasts, MIB-PBI could still be a crucial technique, especially for patients with small breasts.
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Sato K, Fuchikami H, Takeda N, Shimo T, Kato M, Okawa T. Efficacy of Single-Plane Implant Technique in Partial Breast Brachytherapy in Small-Breasted Patients. Int J Radiat Oncol Biol Phys 2020; 106:830-837. [DOI: 10.1016/j.ijrobp.2019.11.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 11/11/2019] [Accepted: 11/17/2019] [Indexed: 12/18/2022]
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