ArticleCancer medicine2026
The Clinical Relevance of Lymph Node Ratio for Post-Mastectomy Radiotherapy in Triple-Negative Breast Cancer: A Real-World Analysis With Propensity Score Matching Using SEER Database.
Article in Cancer medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundTo define the role of post-mastectomy radiotherapy (PMRT) in triple-negative breast cancer (TNBC), employing lymph node ratio (LNR, ratio of positive over excised lymph nodes) to offer personalized treatment strategies for this aggressively behaving cancer type.
methodsThe study included a total of 6474 women diagnosed with T1-4 N1-3 M0 TNBC from 2010 to 2017 using the SEER database, all of whom underwent mastectomy. Breast cancer-specific survival (BCSS) was defined as the time from diagnosis until death attributable to the breast cancer. Overall survival (OS) was defined as the time from diagnosis until death from any cause. A 1:1 propensity score matching (PSM) method was utilized to balance the baseline characteristics between the PMRT and non-PMRT groups. Kaplan-Meier analysis, together with the log-rank test, was applied to estimate survival outcomes.
resultsAfter PSM, the PMRT group displayed better OS (HR
conclusionPMRT substantially improves the survival outcomes for individuals who fall into the intermediate to high-risk groups as determined by LNR, an essential prognostic factor. This helps in developing personalized PMRT treatment strategies for TNBC patients, thereby enabling precision medicine approaches.
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