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Shaitelman SF, Anderson BM, Arthur DW, Bazan JG, Bellon JR, Bradfield L, Coles CE, Gerber NK, Kathpal M, Kim L, Laronga C, Meattini I, Nichols EM, Pierce LJ, Poppe MM, Spears PA, Vinayak S, Whelan T, Lyons JA. Partial Breast Irradiation for Patients With Early-Stage Invasive Breast Cancer or Ductal Carcinoma In Situ: An ASTRO Clinical Practice Guideline. Pract Radiat Oncol 2024; 14:112-132. [PMID: 37977261 DOI: 10.1016/j.prro.2023.11.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 11/19/2023]
Abstract
PURPOSE This guideline provides evidence-based recommendations on appropriate indications and techniques for partial breast irradiation (PBI) for patients with early-stage invasive breast cancer and ductal carcinoma in situ. METHODS ASTRO convened a task force to address 4 key questions focused on the appropriate indications and techniques for PBI as an alternative to whole breast irradiation (WBI) to result in similar rates of ipsilateral breast recurrence (IBR) and toxicity outcomes. Also addressed were aspects related to the technical delivery of PBI, including dose-fractionation regimens, target volumes, and treatment parameters for different PBI techniques. The guideline is based on a systematic review provided by the Agency for Healthcare Research and Quality. Recommendations were created using a predefined consensus-building methodology and system for grading evidence quality and recommendation strength. RESULTS PBI delivered using 3-dimensional conformal radiation therapy, intensity modulated radiation therapy, multicatheter brachytherapy, and single-entry brachytherapy results in similar IBR as WBI with long-term follow-up. Some patient characteristics and tumor features were underrepresented in the randomized controlled trials, making it difficult to fully define IBR risks for patients with these features. Appropriate dose-fractionation regimens, target volume delineation, and treatment planning parameters for delivery of PBI are outlined. Intraoperative radiation therapy alone is associated with a higher IBR rate compared with WBI. A daily or every-other-day external beam PBI regimen is preferred over twice-daily regimens due to late toxicity concerns. CONCLUSIONS Based on published data, the ASTRO task force has proposed recommendations to inform best clinical practices on the use of PBI.
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Affiliation(s)
- Simona F Shaitelman
- Department of Breast Radiation Oncology, University of Texas MD - Anderson Cancer Center, Houston, Texas.
| | - Bethany M Anderson
- Department of Radiation Oncology, University of Wisconsin, Madison, Wisconsin
| | - Douglas W Arthur
- Department of Radiation Oncology, Virginia Commonwealth University, Richmond, Virginia
| | - Jose G Bazan
- Department of Radiation Oncology, City of Hope Comprehensive Cancer Center, Duarte, California
| | - Jennifer R Bellon
- Department of Radiation Oncology, Dana-Farber Cancer Institute and Brigham and Women's Hospital, Boston, Massachusetts
| | - Lisa Bradfield
- American Society for Radiation Oncology, Arlington, Virginia
| | - Charlotte E Coles
- Department of Oncology, University of Cambridge, Cambridge, United Kingdom
| | - Naamit K Gerber
- Department of Radiation Oncology, New York University Grossman School of Medicine, New York, New York
| | - Madeera Kathpal
- Department of Radiation Oncology, Duke University Wake County Campus, Raleigh, North Carolina
| | - Leonard Kim
- Department of Radiation Oncology, MD - Anderson Cancer Center at Cooper, Camden, New Jersey
| | - Christine Laronga
- Department of Breast Oncology, Moffitt Cancer Center, Tampa, Florida
| | - Icro Meattini
- Department of Radiation Oncology, University of Florence, Florence, Italy
| | - Elizabeth M Nichols
- Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Lori J Pierce
- Department of Radiation Oncology, University of Michigan School of Medicine, Ann Arbor, Michigan
| | - Matthew M Poppe
- Department of Radiation Oncology, Huntsman Cancer Institute, Salt Lake City, Utah
| | - Patricia A Spears
- Patient Representative, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Shaveta Vinayak
- Department of Medical Oncology, University of Washington, Seattle, Washington
| | - Timothy Whelan
- Department of Oncology, McMaster University, Hamilton, Ontario, Canada
| | - Janice A Lyons
- Department of Radiation Oncology, University Hospitals Seidman Cancer Center, Cleveland, Ohio
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2
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Yoshida M, Yoshimura RI, Notake R, Shinjo H, Miyaura K, Kuwayama T, Kawanaka T, Shien T, Yoshio K, Shiga T, Kaneyasu Y, Nakagawa T, Kubota K, Nakamura S, Itami J. Feasibility of accelerated partial breast irradiation with strut-adjusted volume implant brachytherapy in Japan focusing on dosimetry and acute toxicity: a Japanese multi-institutional prospective study. Breast Cancer 2024; 31:75-83. [PMID: 37865624 DOI: 10.1007/s12282-023-01513-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 10/07/2023] [Indexed: 10/23/2023]
Abstract
BACKGROUND A Japanese multi-institutional prospective study was initiated to investigate the effectiveness and safety of accelerated partial breast irradiation (APBI) using strut-adjusted volume implant (SAVI) brachytherapy, with subjects registered between 2016 and 2021. Herein, we report the preliminary results on the feasibility of this treatment modality in Japan, focusing on the registration process, dosimetry, and acute toxicities. PATIENTS AND METHODS Primary registration was conducted before breast-conserving surgery (BCS) and the eligibility criteria included the following: age ≥ 40 years, tumor unifocal and unicentric, ≤ 3 cm in diameter, cN0M0, proven ductal, mucinous, tubular, medullary, or lobular carcinoma by needle biopsy. Secondary registration was conducted after BCS had been performed leaving a cavity for device implantation and pathological evaluations, and the eligibility criteria were as follows: negative surgical margin, tumor ≤ 3 cm in diameter on gross pathological examination, histologically confirmed ductal, mucinous, tubular medullary, colloid, or lobular carcinoma, pN0, L0V0, no extensive ductal component, no initiation of chemotherapy within 2 weeks of the brachytherapy APBI planning with SAVI was performed for the patients successfully entered in the study by the secondary registration process, and the treatment was administered at the dose of 34 Gy in 10 fractions administered twice daily. RESULTS Between 2016 and 2021, 64 women were enrolled in the study through primary registration, of which 19 were excluded from the secondary registration process, and in one, it was deemed impossible to comply with the dose constraints established during treatment planning. After the exclusion of these latter 20 patients, we treated the remaining 44 patients by APBI with SAVI. The dose constraints could be adhered to in all the patients, but re-planning was necessitated in 3 patients because of applicator movement during the treatment period. Grade 2 acute toxicities were observed in 18% of all patients, but more severe acute toxicities than Grade 2 were not observed in any of the patients. CONCLUSION APBI with SAVI brachytherapy is feasible in Japan from the aspects of compliance with dose constraints and frequency of acute toxicities.
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Affiliation(s)
- Masahiro Yoshida
- Department of Radiation Therapeutics and Oncology, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, Japan
- Department of Radiology, Toho University Ohashi Medical Center, 2-22-36 Ohashi, Meguro-ku, Tokyo, Japan
| | - Ryo-Ichi Yoshimura
- Department of Radiation Therapeutics and Oncology, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, Japan.
| | - Ryoichi Notake
- Radiology Center, Tokyo Medical and Dental University Hospital, 1-5-45 Yushima, Bunkyo-ku, Tokyo, Japan
| | - Hidenori Shinjo
- Division of Radiation Oncology, Department of Radiology, Showa University, 1-5-8 Hatanodai Shinagawa-ku, Tokyo, Japan
| | - Kazunori Miyaura
- Division of Radiation Oncology, Department of Radiology, Showa University, 1-5-8 Hatanodai Shinagawa-ku, Tokyo, Japan
| | - Takashi Kuwayama
- Division of Breast Surgical Oncology, Department of Surgery, Showa University, 1-5-8 Hatanodai Shinagawa-ku, Tokyo, Japan
| | - Takashi Kawanaka
- Department of Radiology and Radiation Oncology, Tokushima University, 3-18-15 Kuramoto-cho, Tokushima, Japan
| | - Tadahiko Shien
- Department of Breast and Endocrine Surgery, Okayama University, 2-5-1 Shikata-cho, Kita-ku, Okayama-shi, Okayama, Japan
| | - Kotaro Yoshio
- Department of Proton Beam Therapy, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata-cho, Kita-ku, Okayama City, Okayama, Japan
| | - Toshiko Shiga
- Department of Radiology, Kansai Medical University Medical Center, 10-15 Fumizono-cho, Moriguchi, Osaka, Japan
| | - Yuko Kaneyasu
- Department of Radiation Oncology, National Hospital Organization Fukuyama Medical Center, 4-14-17 Okinogami-cho, Fukuyama, Hiroshima, Japan
| | - Tsuyoshi Nakagawa
- Department of Breast Surgery, Tokyo Medical and Dental University Hospital, 1-5-45 Yushima, Bunkyo-ku, Tokyo, Japan
| | - Kazunori Kubota
- Department of Radiology, Dokkyo Medical University Saitama Medical Center, Minamikoshigaya 2-1-50, Koshigaya, Saitama, Japan
| | - Seigo Nakamura
- Division of Breast Surgical Oncology, Department of Surgery, Showa University, 1-5-8 Hatanodai Shinagawa-ku, Tokyo, Japan
| | - Jun Itami
- ShinMatsudo Accuracy Radiation Therapy Center, ShinMatsudo Central General Hospital, Matsudo 1-380, Matsudo City, Chiba, Japan
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Kim H, Hieken TJ, Abraha F, Jakub JW, Corbin KS, Furutani KM, Boughey JC, Stish BJ, Deufel CL, Degnim AC, Shumway DA, Ahmed SK, Piltin MA, Sandhu NP, Conners AL, Ruddy KJ, Mutter RW, Park SS. Long-term outcomes of intraoperatively-placed applicator brachytherapy for rapid completion of breast conserving treatment: An analysis of a prospective registry data. Clin Transl Radiat Oncol 2023; 41:100639. [PMID: 37251618 PMCID: PMC10212787 DOI: 10.1016/j.ctro.2023.100639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 02/09/2023] [Accepted: 05/07/2023] [Indexed: 05/31/2023] Open
Abstract
Background and purpose To evaluate the long-term outcome of accelerated partial breast irradiation utilizing intraoperatively placed applicator-based brachytherapy (ABB) in early-stage breast cancer. Materials and methods From our prospective registry, 223 patients with pTis-T2, pN0/pN1mic breast cancer were treated with ABB. The median treatment duration including surgery and ABB was 7 days. The prescribed doses were 32 Gy/8 fx BID (n = 25), 34 Gy/10 fx BID (n = 99), and 21 Gy/3 fx QD (n = 99). Endocrine therapy (ET) adherence was defined as completion of planned ET or ≥ 80% of the follow-up (FU) period. Cumulative incidence of ipsilateral breast tumor recurrence (IBTR) was estimated and influencing factors for IBTR-free survival rate (IBTRFS) were analyzed. Results 218/223 patients had hormone receptor-positive tumors, including 38 (17.0%) with Tis and 185 (83.0%) with invasive cancer. After a median FU of 63 months, 19 (8.5%) patients had recurrence [17 (7.6%) with an IBTR]. Rates of 5-year IBTRFS and DFS were 92.2% and 91.1%, respectively. The 5-year IBTRFS rates were significantly higher for post-menopausal women (93.6% vs. 66.4%, p = 0.04), BMI < 30 kg/m2 (97.4% vs. 88.1%, p = 0.02), and ET-adherence (97.5% vs. 88.6%, p = 0.02). IBTRFS did not differ with dose regimens. Conclusions Postmenopausal status, BMI < 30 kg/m2, and ET- adherence predicted favorable IBTRFS. Our results highlight the importance of careful patient selection for ABB and encouragement of ET compliance.
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Affiliation(s)
- Haeyoung Kim
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN, USA
- Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University of School of Medicine, Seoul, South Korea
| | | | - Feven Abraha
- Department of Biostatistics and Health Sciences Research, Mayo Clinic, Rochester, MN, USA
| | - James W. Jakub
- Department of Surgery, Mayo Clinic, Jacksonville, FL, USA
| | | | | | | | - Bradley J. Stish
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN, USA
| | | | - Amy C. Degnim
- Department of Surgery, Mayo Clinic, Rochester, MN, USA
| | - Dean A. Shumway
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN, USA
| | - Safia K. Ahmed
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN, USA
| | - Mara A. Piltin
- Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Nicole P. Sandhu
- Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Amy L. Conners
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
| | | | - Robert W. Mutter
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN, USA
| | - Sean S. Park
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN, USA
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4
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Rummel KA, Gao RW, Francis LN, Petersen IA, Mutter RW, Corbin KS. Secondary breast angiosarcoma following accelerated partial breast irradiation with intracavitary multicatheter applicator brachytherapy. Brachytherapy 2023; 22:487-490. [PMID: 37217416 DOI: 10.1016/j.brachy.2023.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 04/20/2023] [Indexed: 05/24/2023]
Abstract
PURPOSE Secondary angiosarcoma of the breast is a rare complication of breast radiotherapy and is associated with a poor prognosis. There are many reported cases of secondary angiosarcoma following whole breast irradiation (WBI), however development of secondary angiosarcoma following brachytherapy-based accelerated partial breast irradiation (APBI) is not as well characterized. METHODS AND MATERIALS We reviewed and reported a case of a patient who developed secondary angiosarcoma of the breast following intracavitary multicatheter applicator brachytherapy APBI. RESULTS A 69-year-old female was originally diagnosed with T1N0M0 invasive ductal carcinoma of the left breast and treated with lumpectomy followed by adjuvant intracavitary multicatheter applicator brachytherapy APBI. Seven years following her treatment, she developed secondary angiosarcoma. However, the diagnosis of secondary angiosarcoma was delayed due to nonspecific imaging findings and a negative biopsy. CONCLUSIONS Our case highlights the need for secondary angiosarcoma to be considered in the differential diagnosis when patients present with symptoms such as breast ecchymosis and skin thickening following WBI or APBI. Prompt diagnosis and referral to a high-volume sarcoma treatment center for multidisciplinary evaluation is vital.
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Affiliation(s)
- Keaton A Rummel
- University of North Dakota School of Medicine and Health Sciences, Bismarck, ND.
| | - Robert W Gao
- Mayo Clinic Department of Radiation Oncology, Rochester, MN
| | - Leah N Francis
- Mayo Clinic Department of Radiation Oncology, Rochester, MN
| | - Ivy A Petersen
- Mayo Clinic Department of Radiation Oncology, Rochester, MN
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5
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Anderson B, Vicini F, Wazer D, Arthur D. Breast brachytherapy: Building a bright future on the foundation of a rich history of advancement in technology, technique, and patient-centered care. Brachytherapy 2023; 22:368-380. [PMID: 36740541 DOI: 10.1016/j.brachy.2022.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 12/02/2022] [Accepted: 12/23/2022] [Indexed: 02/05/2023]
Abstract
For over 20 years, the concept of accelerated partial breast irradiation (APBI) has received considerable attention. Initially concentrating on the appropriateness of APBI as an alternative treatment to whole breast radiotherapy, investigation and innovation evolved towards dose delivery and technique appropriateness. The purpose of this article is to review the pertinent literature that supports the role brachytherapy serves in delivering APBI and the recognized brachytherapy techniques for dose delivery. Publications establishing techniques utilizing multicatheter brachytherapy, single-entry brachytherapy applicators, permanent breast seed implantation brachytherapy, noninvasive breast brachytherapy and electronic brachytherapy are described. The use of brachytherapy for repeat breast conservation therapy is additionally reviewed. A historical perspective and potential direction of future investigation and innovation are presented.
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Affiliation(s)
- Bethany Anderson
- Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, Madison, WI
| | | | - David Wazer
- Department of Radiation Oncology, Tufts Medical Center, Boston, MA
| | - Douglas Arthur
- Department of Radiation Oncology, Virginia Commonwealth University, Richmond, VA.
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6
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Abstract
Breast irradiation has evolved significantly over the last several decades. Accelerated partial breast and stereotactic breast irradiation have evolved as strategies to reduce irradiated volumes, preserve appropriate oncologic control, and improve cosmetic outcome. The sequencing and/or combination of stereotactic partial breast irradiation with novel systemic agents is of great interest to the oncologic community. Here we explore the landscape of modern trials and opine on the future of partial breast irradiation.
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Affiliation(s)
- Steven K Montalvo
- Department of Radiation Oncology, Harold C. Simmons Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX
| | - Brian Collins
- Department of Radiation Oncology, Tampa General Hospital, Tampa, FL
| | - Frank Vicini
- Department of Radiation Oncology, Genesis Care, Farmington Hills, MI
| | - Asal Rahimi
- Department of Radiation Oncology, Harold C. Simmons Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX
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7
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Anderson B, Arthur D, Hannoun-Levi JM, Kamrava M, Khan A, Kuske R, Scanderbeg D, Shah C, Shaitelman S, Showalter T, Vicini F, Wazer D, Yashar C. Partial breast irradiation: An updated consensus statement from the American brachytherapy society. Brachytherapy 2022; 21:726-747. [PMID: 36117086 DOI: 10.1016/j.brachy.2022.07.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 06/15/2022] [Accepted: 07/06/2022] [Indexed: 12/14/2022]
Abstract
PURPOSE In recent years, results with mature follow-up have been reported for several Phase III trials randomizing women to receive whole breast irradiation (WBI) versus varying modalities of partial breast irradiation (PBI). It is important to recognize that these methods vary in terms of volume of breast tissue treated, dose per fraction, and duration of therapy. As such, clinical and technical guidelines may vary among the various PBI techniques. METHODS Members of the American Brachytherapy Society with expertise in PBI performed an extensive literature review focusing on the highest quality data available for the numerous PBI options offered in the modern era. Data were evaluated for strength of evidence and published outcomes were assessed. RESULTS The majority of women enrolled on randomized trials of WBI versus PBI have been age >45 years with tumor size <3 cm, negative margins, and negative lymph nodes. The panel also concluded that PBI can be offered to selected women with estrogen receptor negative and/or Her2 amplified breast cancer, as well as ductal carcinoma in situ, and should generally be avoided in women with extensive lymphovascular space invasion. CONCLUSIONS This updated guideline summarizes published clinical trials of PBI methods. The panel also highlights the role of PBI for women facing special circumstances, such as history of cosmetic breast augmentation or prior breast irradiation, and discusses promising novel modalities that are currently under study, such as ultrashort and preoperative PBI. Updated consensus guidelines are also provided to inform patient selection for PBI and to characterize the strength of evidence to support varying PBI modalities.
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Affiliation(s)
- Bethany Anderson
- Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, Madison, WI.
| | - Douglas Arthur
- Department of Radiation Oncology, Virginia Commonwealth University, Richmond, VA
| | | | | | - Atif Khan
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Robert Kuske
- Arizona Breast Cancer Specialists, Scottsdale, AZ
| | - Daniel Scanderbeg
- Department of Radiation Medicine and Applied Sciences, University of California San Diego, San Diego, CA
| | - Chirag Shah
- Department of Radiation Oncology, Taussig Cancer Institute, Cleveland, OH
| | - Simona Shaitelman
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Timothy Showalter
- Department of Radiation Oncology, University of Virginia School of Medicine, Charlottesville, VA
| | | | - David Wazer
- Department of Radiation Oncology, Tufts Medical Center, Boston, MA
| | - Catheryn Yashar
- Department of Radiation Medicine and Applied Sciences, University of California San Diego, San Diego, CA
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8
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Rahimi A, Morgan HE, Kim DW, Zhang Y, Leitch M, Wooldridge R, Goudreau S, Haley B, Rao R, Rivers A, Spangler AE, Jones RT, Stevenson S, Staley J, Albuquerque K, Ahn C, Neufeld S, Alluri PG, Ding C, Garwood D, Seiler S, Zhao B, Gu X, Timmerman R. Cosmetic Outcomes of a Phase 1 Dose Escalation Study of 5-Fraction Stereotactic Partial Breast Irradiation for Early Stage Breast Cancer. Int J Radiat Oncol Biol Phys 2021; 110:772-782. [PMID: 33476737 DOI: 10.1016/j.ijrobp.2021.01.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 01/06/2021] [Accepted: 01/10/2021] [Indexed: 10/22/2022]
Abstract
PURPOSE Our purpose was to evaluate cosmetic changes after 5-fraction adjuvant stereotactic partial breast irradiation (S-PBI). METHODS AND MATERIALS Seventy-five women with in situ or invasive breast cancer stage 0, I, or II, with tumor size ≤3 cm, were enrolled after lumpectomy in a phase 1 dose escalation trial of S-PBI into cohorts receiving 30, 32.5, 35, 37.5, or 40 Gy in 5 fractions. Before S-PBI, 3 to 4 gold fiducial markers were placed in the lumpectomy cavity for tracking with the Synchrony respiratory tracking system. S-PBI was delivered with a CyberKnife robotic radiosurgery system. Patients and physicians evaluated global cosmesis using the Harvard Breast Cosmesis Scale. Eight independent panelists evaluated digital photography for global cosmesis and 10 subdomains at baseline and follow-up. McNemar tests were used to evaluate change in cosmesis, graded as excellent/good or fair/poor, from baseline to year 3. Wilcoxon signed rank tests were used to evaluate change in subdomains. Cohen's kappa (κ) statistic was used to estimate interobserver agreement (IOA) between raters, and Fleiss' κ was used to estimate IOA between panelists. RESULTS Median cosmetic follow-up was 5, 5, 5, 4, and 3 years for the 30, 32.5, 35, 37.5, and 40 Gy cohorts. Most patients reported excellent/good cosmesis at both baseline (86.3%) and year 3 (89.8%). No dose cohort had significantly worsened cosmesis by year 3 on McNemar analysis. No cosmetic subdomain had significant worsening by year 3. IOA was fair for patient-physician (κ = 0.300, P < .001), patient-panel (κ = 0.295, P < .001), physician-panel (κ = 0.256, P < .001), and individual panelists (Fleiss κ = 0.327, P < .001). CONCLUSIONS Dose escalation of S-PBI from 30 to 40 Gy in 5 fractions for early stage breast cancer was not associated with a detectable change in cosmesis by year 3. S-PBI is a promising modality for treatment of early stage breast cancer.
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Affiliation(s)
- Asal Rahimi
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas.
| | - Howard E Morgan
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Dong W Kim
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Yuanyuan Zhang
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Marilyn Leitch
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Rachel Wooldridge
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Sally Goudreau
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Barbara Haley
- Department of Medicine, Division of Hematology-Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Roshni Rao
- Department of Surgery, Columbia University, New York, New York
| | - Aeisha Rivers
- Department of Surgery, Memorial Health Care System, Pembroke Pines, Florida
| | - Ann E Spangler
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Ryan T Jones
- Department of Radiation Oncology, Tennessee Oncology, Nashville, Tennessee
| | - Stella Stevenson
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Jason Staley
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Kevin Albuquerque
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Chul Ahn
- Department of Population and Data Sciences, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Sarah Neufeld
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Prasanna G Alluri
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Chuxiong Ding
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Dan Garwood
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Stephen Seiler
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Bo Zhao
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, Uniondale, New York
| | - Xuejun Gu
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Robert Timmerman
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
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9
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Abstract
Accelerated partial breast irradiation with brachytherapy is a treatment method with a very low risk profile. In fact, accelerated partial breast irradiation brachytherapy has been proven in randomized trials to have fewer late side effects than whole-breast irradiation. Notably, Grade 3 late side effects are extremely rare, and excellent to good cosmetic results are observed in well over 90% of patients. In this article, published side effects of breast brachytherapy are reviewed and appropriate management discussed.
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Affiliation(s)
- Vratislav Strnad
- Department of Radiation Oncology, University Hospital Erlangen, Germany.
| | - Catheryn Yashar
- Department of Radiation Medicine and Applied Sciences, University of California San Diego, La Jolla, CA
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10
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Abstract
Brachytherapy is an invasive therapy with placement of radiation source into or near the tumor. The difference between planning target volume and clinical target volume is minimal, and the dose out of the tumor reduces rapidly due to the inverse-square law. High-dose-rate brachytherapy enables three-dimensional image guidance, and currently, tumor dose as well as doses of the surrounding normal structures can be evaluated accurately. High-dose-rate brachytherapy is the utmost precision radiation therapy even surpassing carbon ion therapy. Biological disadvantages of high-dose rate have been overcome by the fractional irradiation. High-dose-rate brachytherapy is indispensable in the definitive radiation therapy of cervical cancer. Also in prostate cancer and breast cancer, high-dose-rate brachytherapy plays a significant role. Brachytherapy requires techniques and skills of radiation oncologists at the time of invasive placement of the radiation source into the tumor area. Education of young radiation oncologists is most urgent and important.
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Affiliation(s)
- Jun Itami
- Department of Radiation Oncology, National Cancer Center Hospital, Tokyo, Japan
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11
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Rahimi A, Zhang Y, Kim DW, Morgan H, Hossain F, Leitch M, Wooldridge R, Seiler S, Goudreau S, Haley B, Rao R, Rivers A, Spangler A, Ahn C, Stevenson S, Staley J, Albuquerque K, Ding C, Gu X, Zhao B, Timmerman R. Risk Factors for Fat Necrosis After Stereotactic Partial Breast Irradiation for Early-Stage Breast Cancer in a Phase 1 Clinical Trial. Int J Radiat Oncol Biol Phys 2020; 108:697-706. [PMID: 32464155 DOI: 10.1016/j.ijrobp.2020.05.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/17/2020] [Accepted: 05/18/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE This study reports predictive dosimetric and physiologic factors for fat necrosis after stereotactic-partial breast irradiation (S-PBI). METHODS AND MATERIALS Seventy-five patients with ductal carcinoma-in situ or invasive nonlobular epithelial histologies stage 0, I, or II, with tumor size <3 cm were enrolled in a dose-escalation, phase I S-PBI trial between January 2011 and July 2015. Fat necrosis was evaluated clinically at each follow-up. Treatment data were extracted from the Multiplan Treatment Planning System (Cyberknife, Accuray). Univariate and stepwise logistic regression analyses were conducted to identify factors associated with palpable fat necrosis. RESULTS With a median follow-up of 61 months (range: 4.3-99.5 months), 11 patients experienced palpable fat necrosis, 5 cases of which were painful. The median time to development of fat necrosis was 12.7 months (range, 3-42 months). On univariate analyses, higher V32.5-47.5 Gy (P < .05) and larger breast volume (P < .01) were predictive of any fat necrosis; higher V35-50 Gy (P < .05), receiving 2 treatments on consecutive days (P = .02), and higher Dmax (P = .01) were predictive of painful fat necrosis. On multivariate analyses, breast volume larger than 1063 cm3 remained a predictive factor for any fat necrosis; receiving 2 treatments on consecutive days and higher V45 Gy were predictive of painful fat necrosis. Breast laterality, planning target volume (PTV), race, body mass index, diabetic status, and tobacco or drug use were not significantly associated with fat necrosis on univariate analysis. CONCLUSIONS Early-stage breast cancer patients treated with breast conserving surgery and S-PBI in our study had a fat necrosis rate comparable to other accelerated partial breast irradiation modalities, but S-PBI is less invasive. To reduce risk of painful fat necrosis, we recommend not delivering fractions on consecutive days; limiting V42.5 < 50 cm3, V45 < 20 cm3, V47.5 < 1 cm3, Dmax ≤ 48 Gy and PTV < 100 cm3 when feasible; and counseling patients about the increased risk for fat necrosis when constraints are not met and for those with breast volume >1000 cm3.
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Affiliation(s)
- Asal Rahimi
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas.
| | - Yuanyuan Zhang
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Dong W Kim
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Howard Morgan
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Ferzana Hossain
- Medical School, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Marilyn Leitch
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Rachel Wooldridge
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Stephen Seiler
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Sally Goudreau
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Barbara Haley
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Roshni Rao
- Department of Surgery, Columbia University, New York, New York
| | - Aeisha Rivers
- Department of Surgery, Memorial Health care System, Miramar, Florida
| | - Ann Spangler
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Chul Ahn
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Stella Stevenson
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Jason Staley
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Kevin Albuquerque
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Chuxiong Ding
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Xuejun Gu
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Bo Zhao
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Robert Timmerman
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
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12
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Abstract
Breast brachytherapy represents a radiation technique that can be utilized as both monotherapy and as a tumor bed boost following breast conserving surgery. As monotherapy, the rationale for brachytherapy is that the majority of residual disease and therefore recurrences occur in close proximity to the lumpectomy cavity; for boost treatment, brachytherapy represents a technique that provided a more conformal approach prior to 3D treatment planning, and more recently can be used in conjunction with oncoplastic surgery. Multiple guidelines are available to assist clinicians with patient selection for accelerated partial breast irradiation (APBI), and recent guidelines support brachytherapy as an appropriate technique to deliver APBI. Modern breast brachytherapy can be performed with interstitial or applicator-based brachytherapy with multilumen and strut devices offering the ability to provide greater skin, chest wall, and normal breast sparing than previous devices. Novel strategies are being evaluated, including high dose rate perioperative/intraoperative radiotherapy, permanent breast seed implants, and noninvasive breast brachytherapy. Additionally, studies are evaluating shorter courses of brachytherapy. Multiple Level I studies are now available supporting interstitial brachytherapy to deliver APBI while prospective data and the National Surgical Adjuvant Breast and Bowel Project B-39/Radiation Therapy Oncology Group 0413 trial are available with applicator brachytherapy and provide standardized prescriptions, target volume definitions, and dosimetric goals.
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Affiliation(s)
- Chirag Shah
- Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
| | - Alvaro Martinez
- 21st Century Oncology, Michigan Healthcare Professionals, Farmington Hills, MI
| | - Matthew Kolar
- Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
| | - Frank Vicini
- 21st Century Oncology, Michigan Healthcare Professionals, Farmington Hills, MI.
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13
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Strnad V, Krug D, Sedlmayer F, Piroth MD, Budach W, Baumann R, Feyer P, Duma MN, Haase W, Harms W, Hehr T, Fietkau R, Dunst J, Sauer R. DEGRO practical guideline for partial-breast irradiation. Strahlenther Onkol 2020; 196:749-763. [PMID: 32350554 PMCID: PMC7449998 DOI: 10.1007/s00066-020-01613-z] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 03/19/2020] [Indexed: 12/24/2022]
Abstract
Purpose This consensus statement from the Breast Cancer Working Group of the German Society for Radiation Oncology (DEGRO) aims to define practical guidelines for accelerated partial-breast irradiation (APBI). Methods Recent recommendations for relevant aspects of APBI were summarized and a panel of experts reviewed all the relevant literature. Panel members of the DEGRO experts participated in a series of conferences, supplemented their clinical experience, performed a literature review, and formulated recommendations for implementing APBI in clinical routine, focusing on patient selection, target definition, and treatment technique. Results Appropriate patient selection, target definition for different APBI techniques, and basic rules for appropriate APBI techniques for clinical routine outside of clinical trials are described. Detailed recommendations for APBI in daily practice, including dose constraints, are given. Conclusion Guidelines are mandatory to assure optimal results of APBI using different techniques.
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Affiliation(s)
- V Strnad
- University Hospital Erlangen, Erlangen, Germany.
| | - D Krug
- University Hospital Schleswig-Holstein, Kiel, Germany
| | - F Sedlmayer
- Paracelsus Medical University Hospital Salzburg, Salzburg, Austria
| | - M D Piroth
- Helios University Hospital Wuppertal, Witten/Herdecke University, Wuppertal, Germany
| | - W Budach
- Heinrich-Heine-University Hospital Düsseldorf, Düsseldorf, Germany
| | - R Baumann
- St. Marien-Krankenhaus Siegen, Siegen, Germany
| | - P Feyer
- Vivantes Hospital Neukoelln, Berlin, Germany
| | - M N Duma
- University Hospital, Jena, Germany
| | - W Haase
- St.-Vincentius-Hospital Karlsruhe, Karlsruhe, Germany
| | - W Harms
- St. Claraspital Basel, Basel, Switzerland
| | - T Hehr
- Marienhospital Stuttgart, Stuttgart, Germany
| | - R Fietkau
- University Hospital Erlangen, Erlangen, Germany
| | - J Dunst
- University Hospital Schleswig-Holstein, Kiel, Germany
| | - R Sauer
- University Hospital Erlangen, Erlangen, Germany
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14
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Iijima K, Okamoto H, Takahashi K, Aikawa A, Wakita A, Nakamura S, Nishioka S, Harada K, Notake R, Sugawara A, Yoshimura R, Kunieda E, Itami J. Inter-fractional variations in the dosimetric parameters of accelerated partial breast irradiation using a strut-adjusted volume implant. J Radiat Res 2020; 61:123-133. [PMID: 31665490 PMCID: PMC7022137 DOI: 10.1093/jrr/rrz061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 07/23/2019] [Accepted: 04/29/2019] [Indexed: 06/10/2023]
Abstract
The aim of the study was to evaluate inter-fractional dosimetric variations for high-dose rate breast brachytherapy using a strut-adjusted volume implant (SAVI). For the nine patients included, dosimetric constraints for treatment were as follows: for the planning target volume for evaluation (PTV_Eval), the volume receiving 90, 150 and 200% of the prescribed dose (V90%,150%,200%) should be >90%, ≤50 cm3 and ≤20 cm3, respectively; the dose covering 1 cm3 (D1cc) of the organs at risk should be ≤110% of the prescribed dose; and the air volume should be ≤10% of PTV_Eval. Differences in V90%,150%,200%, D1cc and air volume ($\Delta V$ and $\Delta D$) as inter-fractional dosimetric variations and SAVI displacements were measured with pretreatment and planning computed tomography (CT) images. Inter-fractional dosimetric variations were analyzed for correlations with the SAVI displacements. The patients were divided into two groups based on the distance of the SAVI from the surface skin to assess the relationship between the insertion position of the SAVI and dosimetric parameters. The median ΔV90%,150%,200% for the PTV_Eval in all patients was -0.3%, 0.2 cm3 and 0.2 cm3, respectively. The median (range) ΔD1cc for the chest wall and surface skin was -0.8% (-18.9 to 9.4%) and 0.3% (-7.6 to 5.3%), respectively. SAVI displacement did not correlate with inter-fractional dosimetric variations. In conclusion, the dose constraints were satisfied in most cases. However, there were inter-fractional dosimetric changes due to SAVI displacement.
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Affiliation(s)
- Kotaro Iijima
- Department of Medical Physics, National Cancer Center Hospital, Chuo-ku, Tsukiji 5-1-1, Tokyo, 104-0045, Japan
- Department of Radiation Oncology, Tokai University, School of Medicine, Isehara Shimokasuya 143, Kanagawa, 259-1193, Japan
| | - Hiroyuki Okamoto
- Department of Medical Physics, National Cancer Center Hospital, Chuo-ku, Tsukiji 5-1-1, Tokyo, 104-0045, Japan
| | - Kana Takahashi
- Department of Radiation Oncology, National Cancer Center Hospital, Chuo-ku, Tsukiji 5-1-1, Tokyo, 104-0045, Japan
| | - Ako Aikawa
- Department of Radiation Oncology, National Cancer Center Hospital, Chuo-ku, Tsukiji 5-1-1, Tokyo, 104-0045, Japan
| | - Akihisa Wakita
- Department of Radiation Oncology, National Cancer Center Hospital, Chuo-ku, Tsukiji 5-1-1, Tokyo, 104-0045, Japan
| | - Satoshi Nakamura
- Department of Medical Physics, National Cancer Center Hospital, Chuo-ku, Tsukiji 5-1-1, Tokyo, 104-0045, Japan
| | - Shie Nishioka
- Department of Medical Physics, National Cancer Center Hospital, Chuo-ku, Tsukiji 5-1-1, Tokyo, 104-0045, Japan
| | - Ken Harada
- Department of Radiation Oncology, Tokai University, School of Medicine, Isehara Shimokasuya 143, Kanagawa, 259-1193, Japan
| | - Ryoichi Notake
- Department of Radiation Therapeutics and Oncology, Tokyo Medical and Dental University, Bunkyo-ku, Ushima 1-5-45, Tokyo, 113-8510, Japan
| | - Akimoto Sugawara
- Department of Radiation Oncology, Tokai University, School of Medicine, Isehara Shimokasuya 143, Kanagawa, 259-1193, Japan
| | - Ryoichi Yoshimura
- Department of Radiation Therapeutics and Oncology, Tokyo Medical and Dental University, Bunkyo-ku, Ushima 1-5-45, Tokyo, 113-8510, Japan
| | - Etsuo Kunieda
- Department of Radiation Oncology, Tokai University, School of Medicine, Isehara Shimokasuya 143, Kanagawa, 259-1193, Japan
| | - Jun Itami
- Department of Medical Physics, National Cancer Center Hospital, Chuo-ku, Tsukiji 5-1-1, Tokyo, 104-0045, Japan
- Department of Radiation Oncology, National Cancer Center Hospital, Chuo-ku, Tsukiji 5-1-1, Tokyo, 104-0045, Japan
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16
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Shah C, Vicini F. Accelerated partial breast irradiation-Redefining the treatment target for women with early stage breast cancer. Breast J 2019; 25:408-417. [PMID: 30950133 DOI: 10.1111/tbj.13241] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Revised: 06/07/2018] [Accepted: 06/19/2018] [Indexed: 01/19/2023]
Abstract
Following breast conserving surgery, the standard of care has been to deliver adjuvant radiation therapy directed to the whole breast (WBI) over a period of 3-7 weeks. Over the past decade, increasing data have supported the concept that treatment to the whole breast may not be required in selected patients, allowing for the emergence of partial breast irradiation (PBI). Multiple randomized trials with 5-10 years of follow-up have been published documenting the safety and efficacy associated with PBI using multiple techniques. Questions that remain to be answered include (a) what is the optimal PBI technique for each clinical scenario, (b) are there additional patients that can be effectively managed with PBI approaches, and (c) are there different techniques/dose schedules that allow for further reduction in treatment duration and/or toxicities? Partial breast irradiation represents a standard approach for appropriately selected patients. PBI provides comparable clinical outcomes to WBI while allowing for a reduction in the duration treatment and the potential for reduced toxicities. Future studies may also help to better define which patients require no radiation, PBI, hypofractionated WBI or conventional WBI, based upon patient, clinical, pathologic features as well as potentially using tumor genetics.
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Affiliation(s)
- Chirag Shah
- Department of Radiation Oncology, Cleveland Clinic, Taussig Cancer Institute, Cleveland, Ohio
| | - Frank Vicini
- 21st Century Oncology, Michigan Healthcare Professionals, Farmington Hills, Michigan
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Struik GM, Godart J, Verduijn GM, Kolkman-Deurloo IK, de Vries KC, de Boer R, Koppert LB, Birnie E, Ghandi A, Klem TM, Pignol JP. A randomized controlled trial testing a hyaluronic acid spacer injection for skin toxicity reduction of brachytherapy accelerated partial breast irradiation (APBI): a study protocol. Trials 2018; 19:689. [PMID: 30558672 PMCID: PMC6298013 DOI: 10.1186/s13063-018-3035-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 11/01/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Accelerated partial breast irradiation (APBI) is a treatment option for selected early stage breast cancer patients. Some APBI techniques lead to skin toxicity with the skin dose as main risk factor. We hypothesize that a spacer injected between the skin and target volume reduces the skin dose and subsequent toxicity in permanent breast seed implant (PBSI) patients. METHODS In this parallel-group, single-center, randomized controlled trial, the effect of a subcutaneous spacer injection on skin toxicity among patients treated with PBSI is tested. Eligibility for participation is derived from international guidelines for suitable patients for partial breast radiotherapy, e.g. women aged ≥ 50 years with a histologically proven non-lobular breast carcinoma and/or ductal carcinoma in situ (DCIS), tumor size ≤ 3 cm, node-negative, and PBSI technically feasible. Among exclusion criteria are neoadjuvant chemotherapy, lymphovascular invasion, and allergy for hyaluronic acid. For the patients allocated to receive spacer, after the PBSI procedure, 4-10 cc of biodegradable hyaluronic acid (Barrigel™, Palette Life Sciences, Santa Barbara, CA, USA or Restylane SubQ®, Galderma Benelux, Breda, the Netherlands) is injected directly under the skin using ultrasound guidance to create an extra 0.5-1 cm space between the treatment volume and the skin. The primary outcome is the rate of telangiectasia at two years, blindly assessed using Bentzen's 4-point scale. Secondary outcomes include: local recurrence; disease-free and overall survival rates; adverse events (pain, redness, skin/subcutaneous induration, radiation dermatitis, pigmentation, surgical site infection); skin dose; cosmetic and functional results; and health-related quality of life. A Fisher's exact test will be used to test differences between groups on the primary outcome. Previous studies found 22.4% telangiectasia at two years. We expect the use of a spacer could reduce the occurrence of telangiectasia to 7.7%. A sample size of 230 patients will allow for a 10% lost to follow-up rate. DISCUSSION In this study, the effect of a subcutaneous spacer injection on the skin dose, late skin toxicity, and cosmetic outcome is tested in patients treated with PBSI in the setting of breast-conserving therapy. Our results will be relevant for most forms of breast brachytherapy as well as robotic radiosurgery, as skin spacers could protect the skin with these other techniques. TRIAL REGISTRATION Netherlands Trial Register, NTR6549 . Registered on 27 June 2017.
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MESH Headings
- Brachytherapy/adverse effects
- Brachytherapy/methods
- Breast Neoplasms/pathology
- Breast Neoplasms/radiotherapy
- Breast Neoplasms/surgery
- Carcinoma, Ductal, Breast/pathology
- Carcinoma, Ductal, Breast/radiotherapy
- Carcinoma, Ductal, Breast/surgery
- Carcinoma, Intraductal, Noninfiltrating/pathology
- Carcinoma, Intraductal, Noninfiltrating/radiotherapy
- Carcinoma, Intraductal, Noninfiltrating/surgery
- Dermal Fillers/administration & dosage
- Dermal Fillers/adverse effects
- Female
- Humans
- Hyaluronic Acid/administration & dosage
- Hyaluronic Acid/adverse effects
- Hyaluronic Acid/analogs & derivatives
- Injections, Subcutaneous
- Mastectomy, Segmental
- Middle Aged
- Netherlands
- Radiation Dosage
- Radiodermatitis/diagnosis
- Radiodermatitis/etiology
- Radiodermatitis/prevention & control
- Radiotherapy, Adjuvant
- Randomized Controlled Trials as Topic
- Telangiectasis/diagnosis
- Telangiectasis/etiology
- Telangiectasis/prevention & control
- Time Factors
- Treatment Outcome
- Tumor Burden
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Affiliation(s)
- Gerson M. Struik
- Department of Surgery, Franciscus Gasthuis and Vlietland, PO Box 10900, 3004 BA Rotterdam, The Netherlands
- Department of Radiation Oncology, Erasmus MC Cancer Institute, PO Box 5201, 3008 AE Rotterdam, The Netherlands
| | - Jeremy Godart
- Department of Radiation Oncology, Erasmus MC Cancer Institute, PO Box 5201, 3008 AE Rotterdam, The Netherlands
| | - Gerda M. Verduijn
- Department of Radiation Oncology, Erasmus MC Cancer Institute, PO Box 5201, 3008 AE Rotterdam, The Netherlands
| | | | - Kim C. de Vries
- Department of Radiation Oncology, Erasmus MC Cancer Institute, PO Box 5201, 3008 AE Rotterdam, The Netherlands
| | - Raymond de Boer
- Department of Radiation Oncology, Erasmus MC Cancer Institute, PO Box 5201, 3008 AE Rotterdam, The Netherlands
| | - Linetta B. Koppert
- Department of Surgery, Erasmus MC Cancer Institute, PO Box 5201, 3008 AE Rotterdam, The Netherlands
| | - Erwin Birnie
- Department of Statistics and Education, Franciscus Gasthuis and Vlietland, PO Box 10900, 3004 BA Rotterdam, the Netherlands
- Department of Genetics, UMC Groningen, University of Groningen, P.O. Box 30001, 9700 RB Groningen, the Netherlands
| | - Ali Ghandi
- Department of Radiology, Franciscus Gasthuis and Vlietland, PO Box 10900, 3004 BA Rotterdam, the Netherlands
| | - Taco M. Klem
- Department of Surgery, Franciscus Gasthuis and Vlietland, PO Box 10900, 3004 BA Rotterdam, The Netherlands
| | - Jean-Philippe Pignol
- Department of Radiation Oncology, Erasmus MC Cancer Institute, PO Box 5201, 3008 AE Rotterdam, The Netherlands
- Department of Radiation Oncology, Dalhousie University, 5820 University Avenue, Halifax, NS B3H1V7 Canada
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18
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Struik GM, Pignol JP, Kolkman-Deurloo IK, Godart J, Verduijn GM, Koppert LB, Birnie E, Ghandi A, Klem TM. Subcutaneous spacer injection to reduce skin toxicity in breast brachytherapy: A pilot study on mastectomy specimens. Brachytherapy 2018; 18:204-210. [PMID: 30528494 DOI: 10.1016/j.brachy.2018.11.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Revised: 10/23/2018] [Accepted: 11/05/2018] [Indexed: 01/16/2023]
Abstract
PURPOSE Accelerated partial breast irradiation is a treatment option for selected patients with early-stage breast cancer. Some accelerated partial breast irradiation techniques lead to skin toxicity with the skin dose as a main risk factor. Biodegradable spacers are effective and safe in prostate brachytherapy to protect the rectum. We hypothesize that a subcutaneous spacer injection reduces the skin dose in breast brachytherapy. METHODS AND MATERIALS Ultrasound-guided spacer injections, either hyaluronic acid (HA) or iodined polyethylene glycol (PEG), were performed on fresh mastectomy specimens. Success was defined as a spacer thickness of ≥5 mm in the high-dose skin area. Usability was scored using the system usability scale. Pre and postinjection CT scans were used to generate low-dose-rate seed brachytherapy treatment plans after defining a clinical target volume. Maximum dose to small skin volumes (D0.2cc) and existence of hotspots (isodose ≥90% on 1 cm2 of skin) were calculated as skin toxicity indicators. RESULTS We collected 22 mastectomy specimens; half had HA and half had PEG injection. Intervention success was 100% for HA and 90.9% for PEG (p = NS). Hydrodissection was feasible in 81.8% with HA and 63.6% with PEG. Median system usability scale score was 97.5 for HA and 82.5 for PEG (p < 0.001). Mean D0.2cc was 80.8 Gy without spacer and 53.7 Gy with spacer (p < 0.001). Skin hotspots were present in 40.9% without spacer but none with spacer (p < 0.001). CONCLUSIONS A spacer injection in mastectomy specimens is feasible. An extra 5 mm space is always achieved, thereby potentially reducing the skin dose dramatically in low-dose-rate seed breast brachytherapy.
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Affiliation(s)
- Gerson M Struik
- Department of Surgery, Franciscus Gasthuis and Vlietland, Rotterdam, The Netherlands; Department of Radiation Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands.
| | - Jean-Philippe Pignol
- Department of Radiation Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands; Department of Radiation Oncology, Dalhousie University, Halifax, Nova Scotia, Canada
| | | | - Jeremy Godart
- Department of Radiation Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Gerda M Verduijn
- Department of Radiation Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Linetta B Koppert
- Department of Surgery, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Erwin Birnie
- Department of Statistics and Education, Franciscus Gasthuis and Vlietland, Rotterdam, The Netherlands; Division of Woman and Baby, Department of Obstetrics and Gynecology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Ali Ghandi
- Department of Radiology, Franciscus Gasthuis and Vlietland, Rotterdam, The Netherlands
| | - Taco M Klem
- Department of Surgery, Franciscus Gasthuis and Vlietland, Rotterdam, The Netherlands
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19
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Stecklein SR, Shaitelman SF, Babiera GV, Bedrosian I, Black DM, Ballo MT, Arzu I, Strom EA, Reed VK, Dvorak T, Smith BD, Woodward WA, Hoffman KE, Schlembach PJ, Kirsner SM, Nelson CL, Yang J, Guerra W, Dibaj S, Bloom ES. Prospective Comparison of Toxicity and Cosmetic Outcome After Accelerated Partial Breast Irradiation With Conformal External Beam Radiotherapy or Single-Entry Multilumen Intracavitary Brachytherapy. Pract Radiat Oncol 2018; 9:e4-e13. [PMID: 30125673 DOI: 10.1016/j.prro.2018.08.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 07/26/2018] [Accepted: 08/07/2018] [Indexed: 11/30/2022]
Abstract
PURPOSE This study aimed to prospectively characterize toxicity and cosmesis after accelerated partial breast irradiation (APBI) with 3-dimensional conformal radiation therapy (CRT) or single-entry, multilumen, intracavitary brachytherapy. METHODS AND MATERIALS A total of 281 patients with pTis, pT1N0, or pT2N0 (≤3.0 cm) breast cancer treated with segmental mastectomy were prospectively enrolled from December 2008 through August 2014. APBI was delivered using 3-dimensional CRT (n = 29) or with SAVI (n = 176), Contura (n = 56), or MammoSite (n = 20) brachytherapy catheters. Patients were evaluated at protocol-specified intervals, at which time the radiation oncologist scored cosmetic outcome, toxicities, and recurrence status using a standardized template. RESULTS The median follow-up time is 41 months. Grade 1 seroma and fibrosis were more common with brachytherapy than with 3-dimensional CRT (50.4% vs 3.4% for seroma; P < .0001 and 66.3% vs 44.8% for fibrosis; P = .02), but grade 1 edema was more common with 3-dimensional CRT than with brachytherapy (17.2% vs 5.6%; P = .04). Grade 2 to 3 pain was more common with 3-dimensional CRT (17.2% vs 5.2%; P = .03). Actuarial 5-year rates of fair or poor radiation oncologist-reported cosmetic outcome were 9% for 3-dimensional CRT and 24% for brachytherapy (P = .13). Brachytherapy was significantly associated with inferior cosmesis on mixed model analysis (P = .003). Significant predictors of reduced risk of adverse cosmetic outcome after brachytherapy were D0.1cc (skin) ≤102%, minimum skin distance >5.1 mm, dose homogeneity index >0.54, and volume of nonconformance ≤0.89 cc. The 5-year ipsilateral breast recurrence was 4.3% for brachytherapy and 4.2% for 3-dimensional CRT APBI patients (P = .95). CONCLUSIONS Brachytherapy APBI is associated with higher rates of grade 1 fibrosis and seroma than 3-dimensional CRT but lower rates of grade 1 edema and grade 2 to 3 pain than 3-dimensional CRT. Rates of radiation oncologist-reported fair or poor cosmetic outcomes are higher with brachytherapy. We identified dosimetric parameters that predict reduced risk of adverse cosmetic outcome after brachytherapy-based APBI. Ipsilateral breast recurrence was equivalent for brachytherapy and 3-dimensional CRT.
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Affiliation(s)
- Shane R Stecklein
- Department of Radiation Oncology, The University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Simona F Shaitelman
- Department of Radiation Oncology, The University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Gildy V Babiera
- Department of Breast Surgical Oncology, The University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Isabelle Bedrosian
- Department of Breast Surgical Oncology, The University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Dalliah M Black
- Department of Breast Surgical Oncology, The University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Matthew T Ballo
- Department of Radiation Oncology, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Isadora Arzu
- Department of Radiation Oncology, The University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Eric A Strom
- Department of Radiation Oncology, The University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Valerie K Reed
- Department of Radiation Oncology, The University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Tomas Dvorak
- Department of Radiation Oncology, UFHealth Cancer Center/Orlando Health, Orlando, Florida
| | - Benjamin D Smith
- Department of Radiation Oncology, The University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Wendy A Woodward
- Department of Radiation Oncology, The University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Karen E Hoffman
- Department of Radiation Oncology, The University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Pamela J Schlembach
- Department of Radiation Oncology, The University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Steve M Kirsner
- Department of Radiation Physics, The University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Christopher L Nelson
- Department of Radiation Physics, The University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Jinzhong Yang
- Department of Radiation Physics, The University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - William Guerra
- Department of Radiation Oncology, The University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Shiva Dibaj
- Department of Biostatistics, The University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Elizabeth S Bloom
- Department of Radiation Oncology, The University of Texas, MD Anderson Cancer Center, Houston, Texas.
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Shah C, Vicini F, Shaitelman SF, Hepel J, Keisch M, Arthur D, Khan AJ, Kuske R, Patel R, Wazer DE. The American Brachytherapy Society consensus statement for accelerated partial-breast irradiation. Brachytherapy 2018; 17:154-70. [DOI: 10.1016/j.brachy.2017.09.004] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 09/11/2017] [Accepted: 09/18/2017] [Indexed: 12/29/2022]
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Anderson BM, Wallace CR, De Costa AA, Das RK. Clinical implementation of a novel Double-Balloon single-entry breast brachytherapy applicator. Brachytherapy 2017; 16:1239-45. [PMID: 28844820 DOI: 10.1016/j.brachy.2017.07.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 07/28/2017] [Accepted: 07/28/2017] [Indexed: 11/21/2022]
Abstract
PURPOSE The purpose of the study was to describe the clinical utilization of a novel Double-Balloon applicator for accelerated partial breast irradiation (APBI). METHODS AND MATERIALS The Double-Balloon single-entry breast applicator contains a single central treatment catheter, as well as four peripheral catheters that can be differentially loaded to customize radiation dose coverage. An inner balloon is filled with up to 7-30 cm3 of saline to increase separation between the peripheral catheters, and an outer balloon is filled with up to 37-115 cm3 of saline to displace breast tissue from the peripheral catheters. Treatment planning objectives include coverage of the breast planning target volume to a minimum of V90 > 90%, limiting dose heterogeneity such that V200 < 10 cm3 and V150 < 50 cm3, and limiting maximum dose to skin (<100% of prescription dose) and ribs (<145% of prescription dose). RESULTS High-dose-rate APBI was delivered to 11 women using this device (34 Gy in 10 twice daily fractions). The mean V90 was 98.2% (range 94.2-99.4%). The mean skin Dmax with the Double-Balloon applicator was 83.3% (range 75.6-99.5%). The mean breast V200 was 5.8 cm3 (range 2.3-10.2 cm3), and the mean breast V150 was 32.9 cm3 (range 25.0-41.7 cm3). Pretreatment quality assurance was performed using CT prior to each morning fraction and ultrasound prior to each afternoon fraction. CONCLUSIONS The Double-Balloon applicator can be easily introduced into a previously existing brachytherapy program. APBI plans created with this applicator achieve excellent planning target volume coverage, while limiting skin dose and maintaining breast V200 < 10 cm3.
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Abstract
Breast-conserving therapy is one of the most remarkable achievements of modern cancer care. The authors review the evidence supporting the role of adjuvant radiotherapy as the standard of care for breast cancer after breast-conserving surgery, consensus guidelines for margins in invasive cancer disease and ductal carcinoma in situ, the role of partial-breast irradiation and hypofractionated whole-breast irradiation, and the evolving indications for postmastectomy radiation therapy and extent of nodal coverage. Areas of research include specific methods of partial-breast irradiation, interactions between neoadjuvant chemotherapy and radiotherapy, and integration of molecular profiles with the selection of the best treatment modality and timing.
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Abstract
Several improvements in breast cancer radiation delivery have been realized using new techniques over the past several decades. As an example, for early stage disease, there has been active investigation of partial breast irradiation (PBI) vs whole breast irradiation. Although still investigational, PBI reduces the treatment volumes, doses to organs at risk, and may improve cosmesis. Over the past 2 decades PBI has been delivered via interstitial brachytherapy, intracavitary brachytherapy, intraoperative radiation therapy, or 3-dimensional external beam radiation therapy. More recently, there has been growing evidence that supports stereotactic body radiation therapy as a safe and effective new treatment for early stage breast cancer. This article describes this new treatment opportunity and reviews the emerging data of stereotactic partial breast irradiation.
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