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Cosar R, Sut N, Parlar S, Ozguven Y, Nurlu D, Tastekin E, Batu S, Şenödeyici E, Ozler T, Dedeli M, Yıldız G, Kavukcu S, Chousein M, Alas Z, Topaloglu S. Retrospective evaluation of the contribution of radiotherapy to survival in breast cancer treatment with propensity score based on stage and subgroup. Radiat Oncol 2024; 19:83. [PMID: 38926743 PMCID: PMC11210162 DOI: 10.1186/s13014-024-02474-x] [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: 03/18/2024] [Accepted: 06/17/2024] [Indexed: 06/28/2024] Open
Abstract
BACKGROUND Breast cancer has been a disease in which treatment strategy has changed over time under the influence of different hypotheses and evidence for more than a century. We analyzed the contribution of radiotherapy to disease-free survival and overall survival by classifying according to stage, 1-3 lymph node involvement, and molecular subgroups. METHODS Following the approval of the Institutional Review Board, records of patients with breast cancer who were admitted to University School of Medicine Departments of Radiation Oncology and Medical Oncology between July 1999 and December 2020 were reviewed. Using data propensity score matching was performed between the groups that did and did not receive radiotherapy using an optimal matching algorithm (optimum, 1:1). Disease-free survival and overall survival after propensity score matching were calculated using the Kaplan-Meier method. Univariate and multivariate Cox regression analysis was used to estimate hazard ratios. RESULTS In the radiotherapy and non-radiotherapy groups, disease-free survival was 257.42 ± 5.46 (246.72- 268.13), 208,96 ± 8,15 (192,97-224,94) months respectively, (p = < 0.001), overall survival was 272,46 ± 8,68 (255,43-289,49), 219,05 ± 7,32 (204,70-233,41) months respectively (p = .002). We compared the 19 N1 patient groups who received radiotherapy with the 19 patients who did not receive radiotherapy and calculated the disease-free survival times was 202,21 ± 10,50 (181,62-222,79) and 148,82 ± 24,91 (99,99-197,65) months respectively (p = .011) and overall survival times was 200,85 ± 12,79 (175,77-225,92) and 166,90 ± 20,39 (126,93-206,82) months respectively (p = .055). We examined disease-free survival and overall survival times in both groups according to Luminal A, Luminal B, TNBC, and HER2-enriched subgroups. In the Luminal B subgroup, the disease-free survival duration in the groups receiving radiotherapy and not receiving radiotherapy was 264.83 ± 4.95 (255.13-274.54) and 187.09 ± 11.06 (165.41-208.78) months (p < .001), and overall survival times were 252.29 ± 10.54 (231.62-272.97) and 197.74 ± 9.72 (178.69-216.80) months (p = .001) respectively. CONCLUSIONS Thanks to studies proving that RT increases long-term survival rates in breast cancer as a result of reducing locoregional recurrence and systemic metastasis rates, it has been understood that the spectrum hypothesis is the hypothesis that most accurately describes breast cancer to date. We found that patients with Luminal B invasive breast cancer benefited significantly more from RT compared to other subgroups.
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Affiliation(s)
- Rusen Cosar
- Faculty of Medicine, Department of Radiation Oncology, Trakya University, Edirne, Turkey.
| | - Necdet Sut
- Faculty of Medicine, Department of Biostatistics, Trakya University, Edirne, Turkey
| | - Sule Parlar
- Faculty of Medicine, Department of Medical Physics, Trakya University, Edirne, Turkey
| | - Yıldıray Ozguven
- Faculty of Medicine, Department of Medical Physics, Trakya University, Edirne, Turkey
| | - Dilek Nurlu
- Faculty of Medicine, Department of Radiation Oncology, Trakya University, Edirne, Turkey
| | - Ebru Tastekin
- Faculty of Medicine, Department of Pathology, Trakya University, Edirne, Turkey
| | - Sena Batu
- Trakya University Faculty of Medicine, Edirne, Turkey
| | | | - Talar Ozler
- Faculty of Medicine, Department of Radiation Oncology, Trakya University, Edirne, Turkey
| | - Melisa Dedeli
- Faculty of Medicine, Department of Radiation Oncology, Trakya University, Edirne, Turkey
| | - Gökay Yıldız
- Faculty of Medicine, Department of Radiation Oncology, Trakya University, Edirne, Turkey
| | - Sekip Kavukcu
- Faculty of Medicine, Department of Radiation Oncology, Trakya University, Edirne, Turkey
| | - Mert Chousein
- Faculty of Medicine, Department of Radiation Oncology, Trakya University, Edirne, Turkey
| | - Zeynep Alas
- Faculty of Life Sciences-Molecular and Cellular Biology, Strasbourg University, Strasbourg, France
| | - Sernaz Topaloglu
- Faculty of Medicine, Department of Medical Oncology, Trakya University, Edirne, Turkey
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Mücke R, Heim G, Gosenheimer R, Schmitz V, Schulz C, Knoeß P, Fakhrian K, Harvey C, Mücke C, Lochhas G, Metzmann U, Bussmann M, Paschold M. Radiation therapy of breast cancer in the Nahe Breast Center: first results of an analysis in the context of health services research. Strahlenther Onkol 2024; 200:314-319. [PMID: 37947805 DOI: 10.1007/s00066-023-02157-8] [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: 07/07/2023] [Accepted: 09/10/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND The first evaluation of radiotherapy results in patients with breast cancer treated as part of a multimodal oncologic therapy in the Nahe Breast Center is presented. Analysis of the results was performed using an in-practice registry. PATIENTS AND METHODS From September 2016 to December 2017, 138 patients (median age 62.5 years; range 36-94 years) with breast cancer (right side, n = 67; left side, n = 71) received adjuvant radiation therapy. Of these, 103 patients received gyneco-oncologic care at the Nahe Breast Center, and 35 were referred from outside breast centers. The distribution into stages was as follows: stage I, n = 48; stage II, n = 68; stage III, n = 19; stage IV, n = 3. Neoadjuvant chemotherapy was given to 19 and adjuvant chemotherapy to 50 patients. Endocrine treatment was given to 120 patients. Both 3D conformal (n = 103) and intensity-modulated (n = 35) radiotherapy were performed with a modern linear accelerator. RESULTS With a median follow-up of 60 months (1-67), local recurrence occurred in 4/138 (2.9%) and distant metastasis in 8/138 (5.8%) patients; 7/138 (5.1%) patients died of their tumors during the follow-up period. The actuarial 5‑year local recurrence-free survival of all patients was 97.1%, and the actuarial 5‑year overall survival of all patients was 94.9%. We observed no grade 3 or 4 radiogenic side effects. CONCLUSION The results of radiotherapy for breast carcinoma at the Nahe Breast Center are comparable to published national and international results. In particular, the local recurrence rates in our study, determined absolutely and actuarially, are excellent, and demonstrate the usefulness of radiotherapy.
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Affiliation(s)
- Ralph Mücke
- Radiotherapy RheinMainNahe, Mainz-Ruesselsheim-Bad Kreuznach, Mühlenstraße 39a, 55543, Bad Kreuznach, Germany.
- Department of Radiotherapy and Radiation Oncology, Marien Hospital Herne, Ruhr University Bochum, Bochum, Germany.
| | - Gabor Heim
- Department of Gynecology, Hospital Sankt Marienwoerth, Bad Kreuznach, Germany
| | - Robert Gosenheimer
- Department of Internal Medicine, Hospital Sankt Marienwoerth, Bad Kreuznach, Germany
| | - Volker Schmitz
- Department of Internal Medicine, Hospital Sankt Marienwoerth, Bad Kreuznach, Germany
| | | | - Per Knoeß
- Institute of Pathology, Bad Kreuznach, Germany
| | | | - Christina Harvey
- Department of Internal Medicine, Hospital Sankt Marienwoerth, Bad Kreuznach, Germany
| | - Christiane Mücke
- Radiotherapy RheinMainNahe, Mainz-Ruesselsheim-Bad Kreuznach, Mühlenstraße 39a, 55543, Bad Kreuznach, Germany
| | - Gabriele Lochhas
- Radiotherapy RheinMainNahe, Mainz-Ruesselsheim-Bad Kreuznach, Mühlenstraße 39a, 55543, Bad Kreuznach, Germany
| | - Ute Metzmann
- Radiotherapy RheinMainNahe, Mainz-Ruesselsheim-Bad Kreuznach, Mühlenstraße 39a, 55543, Bad Kreuznach, Germany
| | - Matthias Bussmann
- Medical Management Board, Hospital Sankt Marienwoerth, Bad Kreuznach, Germany
| | - Markus Paschold
- Department of Surgery, Hospital Sankt Marienwoerth, Bad Kreuznach, Germany
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Zhao XR, Tang Y, Wu HF, Guo QS, Zhang YJ, Shi M, Cheng J, Wang HM, Liu M, Ma CY, Wen G, Wang XH, Fang H, Jing H, Song YW, Jin J, Liu YP, Chen B, Qi SN, Li N, Tang Y, Lu NN, Zhang N, Li YX, Wang SL. Influence of age as a continuous variable on the prognosis of patients with pT1-2N1 breast cancer. Breast 2022; 66:136-144. [PMID: 36270084 PMCID: PMC9587343 DOI: 10.1016/j.breast.2022.08.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/31/2022] [Accepted: 08/10/2022] [Indexed: 12/27/2022] Open
Abstract
PURPOSE To assess the influence of age as a continuous variable on the prognosis of pT1-2N1 breast cancer and examine its decision-making value for postmastectomy radiotherapy (PMRT). METHODS We retrospectively evaluated 5438 patients with pT1-2N1 breast cancer after mastectomy in 11 hospitals. A multivariable Cox proportional hazards regression model with penalized splines was used to examine the relationship between age and oncologic outcomes. RESULTS The median follow-up was 67.0 months. After adjustments for confounding characteristics, nonsignificant downward trend in locoregional recurrence (LRR) risk was observed with increasing age (P-non-linear association = 0.640; P-linear association = 0.078). A significant non-linear association was found between age and disease-free survival (DFS) and overall survival (OS) (P-non-linear association <0.05; P-linear association >0.05, respectively). The DFS and OS exhibited U-shaped relationships, with the hazard ratios (HRs), reaching a nadir at 50 years old. A decreased risk of LRR with PMRT vs. no PMRT (HR = 0.304, 95% CI: 0.204-0.454) was maintained in all ages. The HR of PMRT vs. no PMRT for DFS and OS gradually increased with age. In patients ≤50 years old, PMRT was independently associated with favorable LRR, DFS, and OS, all P < 0.05). In patients >50 years old, PMRT was independently associated with reduced LRR (P = 0.004), but had no effect on DFS or OS. CONCLUSIONS Age was an independent prognostic factor for pT1-2N1 breast cancer; PMRT provided survival benefits for patients ≤50 years old, but not for patients >50 years old.
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Affiliation(s)
- Xu-Ran Zhao
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Yu Tang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Hong-Fen Wu
- Department of Radiation Oncology, Jilin Cancer Hospital, Changchun, China
| | - Qi-Shuai Guo
- Department of Radiation Oncology, Affiliated Cancer Hospital of Chongqing University, Chongqing, China
| | - Yu-Jing Zhang
- Department of Radiation Oncology, Sun Yat-sen University Affiliated Tumor Hospital, Guangzhou, China
| | - Mei Shi
- Department of Radiation Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Jing Cheng
- Department of Breast Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hong-Mei Wang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Min Liu
- Department of Radiation Oncology, First Hospital of Jilin University, Changchun, China
| | - Chang-Ying Ma
- Department of Radiation Oncology, First Hospital of Qiqihaer, Qiqihaer, China
| | - Ge Wen
- Department of Radiation Oncology, Sun Yat-sen University Affiliated Tumor Hospital, Guangzhou, China,Department of Radiation Oncology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xiao-hu Wang
- Department of Radiation Oncology, Gansu Cancer Hospital, Lanzhou, China
| | - Hui Fang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Hao Jing
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Yong-Wen Song
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Jing Jin
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Yue-Ping Liu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Bo Chen
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Shu-Nan Qi
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Ning Li
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Yuan Tang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Ning-Ning Lu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Na Zhang
- Department of Radiation Oncology, Liaoning Cancer Hospital, Shenyang, China,Corresponding author.
| | - Ye-Xiong Li
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China,Corresponding author.
| | - Shu-Lian Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China,Corresponding author.
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