ArticleBreast cancer research and treatment2025
Prognostic significance of baseline skeletal muscle index and its dynamics in patients with metastatic breast cancer undergoing eribulin treatment.
Article in Breast cancer research and treatment, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.
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Who cites it
2 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Predicting the prognosis of breast cancer patients by using nutrition-based index: a systematic review and meta-analysis.Frontiers in oncology · 2026Pooled it
- Low pectoralis major muscle mass predicts the risk of post-surgical bleeding after mastectomy in patients with breast cancer.Breast cancer research and treatment · 2026Article
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12 authors.
Funding
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Abstract
purposeIn breast cancer, a low skeletal muscle index (SMI) and prognostic nutritional index (PNI) negatively affect patient outcomes. However, the prognostic implications of changes in these values in patients with metastatic breast cancer (MBC) remain unclear. We evaluated the association between baseline levels and changes in SMI and PNI during eribulin treatment and patient outcomes.
methodsWe retrospectively analyzed 67 patients with MBC treated with eribulin. SMI and PNI were assessed at baseline (pre-SMI, and pre-PNI) and at disease progression; changes from baseline were calculated. Patient outcomes were compared according to baseline status and direction of change.
resultsSMI and PNI were not significantly correlated (p = 0.26, R = 0.02). High pre-SMI and high pre-PNI were associated with significantly improved overall survival (OS) (SMI; hazard ratio [HR] = 0.54, p = 0.04, PNI; HR = 0.33, p < 0.001). Patients with SMI gain during eribulin had longer OS than those with stable SMI or loss (HR = 0.48, p = 0.04), whereas PNI increase was not significantly associated with OS (HR = 0.74, p = 0.32).
conclusionBaseline SMI and PNI provide complementary prognostic information in patients with MBC receiving eribulin. Furthermore, on-treatment SMI gain, but not PNI increase, was associated with improved survival. Monitoring and enhancing skeletal muscle mass may improve outcomes, highlighting the importance of integrating supportive care strategies during chemotherapy.
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