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Association between Skeletal Muscle Loss and the Response to Neoadjuvant Chemotherapy for Breast Cancer

 Byung Min Lee  ;  Yeona Cho  ;  Jun Won Kim  ;  Sung Gwe Ahn  ;  Jee Hung Kim  ;  Hei Cheul Jeung  ;  Joon Jeong  ;  Ik Jae Lee 
 CANCERS, Vol.13(8) : 1806, 2021-04 
Journal Title
Issue Date
breast cancer ; skeletal muscle loss ; treatment-induced cachexia
There are no means to predict patient response to neoadjuvant chemotherapy (NAC); the impact of skeletal muscle loss on the response to NAC remains undefined. We investigated the association between response to chemotherapy and skeletal muscle loss in breast cancer patients. Patients diagnosed with invasive breast cancer who were treated with NAC, surgery, and radiotherapy were analyzed. We quantified skeletal muscle loss using pre-NAC and post-NAC computed tomography scans. The response to treatment was determined using the Response Evaluation Criteria in Solid Tumors. We included 246 patients in this study (median follow-up, 28.85 months). The median age was 48 years old (interquartile range 42-54) and 115 patients were less than 48 years old (46.7%). Patients showing a complete or partial response were categorized into the responder group (208 patients); the rest were categorized into the non-responder group (38 patients). The skeletal muscle mass cut-off value was determined using a receiver operating characteristic curve; it showed areas under the curve of 0.732 and 0.885 for the pre-NAC and post-NAC skeletal muscle index (p < 0.001 for both), respectively. Skeletal muscle loss and cancer stage were significantly associated with poor response to NAC in locally advanced breast cancer patients. Accurately measuring muscle loss to guide treatment and delaying muscle loss through various interventions would help enhance the response to NAC and improve clinical outcomes.
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Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiation Oncology (방사선종양학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Surgery (외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Jun Won(김준원) ORCID logo https://orcid.org/0000-0003-1358-364X
Kim, Jee Hung(김지형) ORCID logo https://orcid.org/0000-0002-9044-8540
Ahn, Sung Gwe(안성귀) ORCID logo https://orcid.org/0000-0002-8778-9686
Lee, Byung Min(이병민)
Lee, Ik Jae(이익재) ORCID logo https://orcid.org/0000-0001-7165-3373
Jeong, Joon(정준) ORCID logo https://orcid.org/0000-0003-0397-0005
Jeung, Hei Cheul(정희철) ORCID logo https://orcid.org/0000-0003-0952-3679
Cho, Yeona(조연아) ORCID logo https://orcid.org/0000-0002-1202-0880
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