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Tang ELS, Sim EJ, Ang WW, Su J, Chen JJC, Chan MYP, Choo BA, Tan EY. Post-Operative Radiation in Early Breast Cancer with N1 Disease: 10-Year Follow-Up. Diseases 2024; 12:145. [PMID: 39057116 PMCID: PMC11276503 DOI: 10.3390/diseases12070145] [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: 04/28/2024] [Revised: 06/16/2024] [Accepted: 06/26/2024] [Indexed: 07/28/2024] Open
Abstract
Post-operative radiotherapy for post-menopausal women with early breast cancer and N1 disease is controversial. Although locoregional control is improved, overall survival (OS) benefit is unclear. The clinical benefit of post-operative irradiation in this group of patients over 10 years was reviewed. We aimed to evaluate the OS, disease-free survival (DFS), and factors affecting OS and DFS. A retrospective review of 191 post-menopausal women with early breast cancer and N1 disease from 2004 to 2011 was performed. Demographics, post-operative histology, adjuvant treatment, OS, and DFS were evaluated. Post-operative radiation was given to 95 of 191 women (49.7%). Younger age at diagnosis (p < 0.001), a greater number of involved nodes (p = 0.004), lymphovascular invasion (LVI), and a higher tumor grade (p = 0.001) were more likely in women who received post-operative radiation. Nodal radiation did not improve 10-year DFS (p = 0.084) or OS (p = 0.203). Post-operative nodal radiation was associated with significant improvement in 10-year OS in women who received only hormonal therapy (p = 0.047) and no other systemic therapy. Women with unfavorable risk factors were more likely to receive post-operative radiation, likely due to a perceived higher risk of recurrence. Nodal radiation did not significantly improve 10-year DFS or OS in early breast cancer patients with N1 disease, and the benefit was not clearly demonstrated. However, in those who were on hormonal therapy, radiotherapy was beneficial in improving overall survival.
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Affiliation(s)
- Ee Ling Serene Tang
- Department of Surgery, Woodlands Health, Singapore 737628, Singapore
- Department of General Surgery, Tan Tock Seng Hospital, Singapore 308433, Singapore (E.Y.T.)
| | - E-Jan Sim
- Department of General Surgery, Tan Tock Seng Hospital, Singapore 308433, Singapore (E.Y.T.)
| | - Wei-Wen Ang
- Department of General Surgery, Tan Tock Seng Hospital, Singapore 308433, Singapore (E.Y.T.)
| | - Jun Su
- Department of General Surgery, Tan Tock Seng Hospital, Singapore 308433, Singapore (E.Y.T.)
| | - Juliana Jia Chuan Chen
- Department of General Surgery, Tan Tock Seng Hospital, Singapore 308433, Singapore (E.Y.T.)
| | - Mun Yew Patrick Chan
- Department of General Surgery, Tan Tock Seng Hospital, Singapore 308433, Singapore (E.Y.T.)
| | - Bok Ai Choo
- Department of Radiation Oncology, Icon Cancer Centre, Singapore 574623, Singapore
| | - Ern Yu Tan
- Department of General Surgery, Tan Tock Seng Hospital, Singapore 308433, Singapore (E.Y.T.)
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 639798, Singapore
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), 61 Biopolis Street, Singapore 138673, Singapore
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Marcinak CT, Schwartz PB, Basree MM, Hurst N, Bassetti M, Kratz JD, Uboha NV. Treatment of Oligometastatic GI Cancers. Am Soc Clin Oncol Educ Book 2024; 44:e430152. [PMID: 38190577 DOI: 10.1200/edbk_430152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
Oligometastatic state is believed to potentially represent a transitional stage between early, locoregional state disease and widely metastatic disease. Historically, locoregional approaches, particularly in advanced colorectal cancers, have demonstrated efficacy in select patients with limited burden of metastatic disease. Recent strides in systemic therapies, including biomarker-based treatments and immunotherapy, alongside innovations in surgical techniques and novel locoregional approaches such as stereotactic radiotherapy and ablation, have ushered in a new era of therapeutic possibilities across all oligometastatic GI cancers. Despite these advancements, there remains a significant gap in high-quality prospective evidence guiding patient selection and treatment decisions across various disease types. Ongoing clinical trials are anticipated to provide crucial insights into oligometastatic states, fostering the refinement of disease-specific oligometastatic state definitions and treatment algorithms. This article reviews existing data on the management of oligometastatic GI cancer, summarizes current state of knowledge for each disease state, and provides updates on ongoing studies in this space.
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Affiliation(s)
- Clayton T Marcinak
- Department of Surgery, University of Wisconsin School of Medicine and Public Health University of Wisconsin-Madison, Madison, WI
| | - Patrick B Schwartz
- Department of Surgery, University of Wisconsin School of Medicine and Public Health University of Wisconsin-Madison, Madison, WI
| | - Mustafa M Basree
- Department of Human Oncology, University of Wisconsin Hospital and Clinics, Madison, WI
| | - Newton Hurst
- Department of Human Oncology, University of Wisconsin Hospital and Clinics, Madison, WI
| | - Michael Bassetti
- Department of Human Oncology, University of Wisconsin Hospital and Clinics, Madison, WI
| | - Jeremy D Kratz
- University of Wisconsin-Madison, Madison, WI
- University of Wisconsin Carbone Cancer Center, University of Wisconsin, Madison, WI
- Center for Human Genomics and Precision Medicine, University of Wisconsin, Madison, WI
- William S. Middleton Memorial Veterans Hospital, Madison, WI
| | - Nataliya V Uboha
- University of Wisconsin-Madison, Madison, WI
- University of Wisconsin Carbone Cancer Center, University of Wisconsin, Madison, WI
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