3.8 Article

Less Axillary Lymphadenectomy is More Beneficial: 27-Year Follow-up of Patients with Breast Cancer

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KOWSAR PUBL
DOI: 10.5812/ijcm.108538

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Breast Neoplasms; Lymph Node Excision; Sentinel Lymph Node Biopsy

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  1. Cancer Research Center of Shahid Beheshti University of Medical Sciences

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The study showed that in early-stage breast cancer patients, there was no significant difference in DFS between LALND and ALND. Additionally, in patients without lymph node involvement, there was no difference in OS between the LALND group and ALND group, but in patients with axillary lymph node metastasis, the best results were seen in those who had 7-8 lymph nodes removed.
Background: One of the most important alterations in breast cancer treatment is the change of view in axillary lymph node management. At the moment, sentinel lymph node biopsy (SLNB) is the standard care in axillary lymph node management. However, in patients with clinically positive lymph nodes or in patients, who have no willingness to receive radioactive drugs, axillary lymph node dissection (ALND) must be done. To the best of our knowledge, there is no overall survival (OS) benefit in ALND, especially at the early stage of breast cancer, during which this procedure is not justified. Objectives: Herein, we have reported the results of 27 years of experiments in limited axillary lymph node dissection (LALND) in comparison to ALND as well as the relationship among the number of removed lymph nodes, OS, and disease-free survival (DFS) at the early stage of breast cancer. Methods: OS and DFS for 588 cases, who were at the early stage of breast cancer and treated by LALND between 1984 and 2019, were compared with1026 patients, who were treated byALND during the same interval in this study. Notably, SLNB cases were excluded. Results: The results revealed no significant difference among the groups in terms of DFS (P = 0.268, 0.123, and 0.333). Also, there was no difference in terms of OS between the LALND group (1- 4 nodes, 5 - 6 nodes, and 7 - 8 nodes) and ALND group (>= 9 nodes) in patients without lymph node involvement (AHR less than 2). However, in the patients with axillary lymph node metastasis (N-1, N-2), similar results were obtained. Correspondingly, in this group, the best results were observed in those patients, whose 7 - 8 lymph nodes were removed. Conclusions: Regarding the results of the current study; it can be concluded that performing the LALND in the defined anatomic range and removing 78 lymph nodes instead of removing 10 lymph nodes are not inferior when it is not possible to do SLNB (there is no access to it) and/or being a contraindication to do it for evaluating the status of axillary lymph nodes in the patients at the early stage of breast cancer.

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