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Clinical significance of axillary nodal ratio in stage II/III breast cancer treated with neoadjuvant chemotherapy

Cited 39 time in Web of Science Cited 41 time in Scopus
Authors

Keam, Bhumsuk; Im, Seock-Ah; Kim, Hee-Jun; Oh, Do-Youn; Kim, Jee Hyun; Lee, Se-Hoon; Chie, Eui Kyu; Han, Wonshik; Kim, Dong-Wan; Cho, Nariya; Moon, Woo Kyung; Kim, Tae-You; Park, In Ae; Noh, Dong-Young; Heo, Dae Seog; Ha, Sung Whan; Bang, Yung-Jue

Issue Date
2009-07
Publisher
Kluwer Academic Publishers
Citation
Breast Cancer Research and Treatment, Vol.116 No.1, pp.153-160
Abstract
Purpose Neoadjuvant chemotherapy may modify the yield of involved axillary lymph nodes. The purpose of this study was to identify the clinical significance of the involved nodal ratios in patients with stage II/III breast cancer treated with neoadjuvant chemotherapy. Methods Two hundred and five stage II and III breast cancer patients who received neoadjuvant docetaxel/doxorubicin chemotherapy were enrolled in this prospective study. The patients received three cycles of neoadjuvant chemotherapy followed by curative surgery, either breast-conserving surgery or mastectomy with axillary lymph node dissection, and received three additional cycles of docetaxel/doxorubicin chemotherapy as adjuvant. Adjuvant radiotherapy and hormonal therapy were given after adjuvant chemotherapy when indicated. Results The median follow-up duration was 28.9 months. The overall response rate (RR) for neoadjuvant chemotherapy was 77.6%. The mean nodal ratio was 0.29 (range, 0-1.0; nodal ratio a parts per thousand currency sign0.25, 121 [59.0%] vs. > 0.25, 84 [41.0%]). Relapse free survival (RFS) of the patients who had a nodal ratio > 0.25 was significantly shorter (Hazard Ratio (HR) = 2.701, P = 0.001). A nodal ratio > 0.25 was also associated with a shorter overall survival (OS) (HR = 4.109, P = 0.006). However, RFS and OS were not different according to the absolute number of involved nodes (ANIN) (P = 0.166, P = 0.248, respectively). In multivariate analysis, the nodal ratio was an independent prognostic factor for RFS and OS (HR = 4.246, P < 0.001; HR = 7.764, P < 0.001). Conclusion Axillary nodal ratios have an independent prognostic value in stage II/III breast cancer treated with neoadjuvant chemotherapy. Nodal ratio might be a useful tool to identify the patients at high risk of relapse in the neoadjuvant setting.
ISSN
0167-6806
Language
English
URI
https://hdl.handle.net/10371/68216
DOI
https://doi.org/10.1007/s10549-008-0160-9
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College of Medicine/School of Medicine (의과대학/대학원)Dept. of Medicine (의학과)Journal Papers (저널논문_의학과)
Graduate School of Convergence Science and Technology (융합과학기술대학원)Dept. of Molecular and Biopharmaceutical Sciences (분자의학 및 바이오제약학과)Journal Papers (저널논문_분자의학 및 바이오제약학과)
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