V Ngai
Non-invasive predictors of axillary lymph node burden in breast cancer: a single-institution retrospective analysis
Ngai, V; Tai, JCJ; Taj, S; Khanfar, H; Sfakianakis, E; Bakalis, A; Ahmed, M; Baker, RD
Authors
JCJ Tai
S Taj
H Khanfar
E Sfakianakis
A Bakalis
M Ahmed
RD Baker
Abstract
Purpose: Axillary staging is an important prognostic factor in breast cancer. Sentinel lymph node biopsy (SNB) is currently used to stage patients who are clinically and radiologically node-negative. Since the establishment that axillary node clearance (ANC) does not improve overall survival in breast-conserving surgery for patients with low-risk biological cancers, axillary management has become increasingly conservative. This study aims to identify and assess the clinical predictive value of variables that could play a role in the quantification of axillary burden, including the accuracy of quantifying abnormal axillary nodes on ultrasound. Methods: A retrospective analysis was conducted of hospital data for female breast cancer patients receiving an ANC at our centre between January 2018 and January 2020. The reference standard for axillary burden was surgical histology following SNB and ANC, allowing categorisation of the patients under ‘low axillary burden’ (2 or fewer pathological macrometastases) or ‘high axillary burden’ (> 2). After exploratory univariate analysis, multivariate logistic regression was conducted to determine relationships between the outcome category and candidate predictor variables: patient age at diagnosis, tumour focality, tumour size on ultrasound and number of abnormal lymph nodes on axillary ultrasound. Results: One hundred and thirty-five patients were included in the analysis. Logistic regression showed that the number of abnormal lymph nodes on axillary ultrasound was the strongest predictor of axillary burden and statistically significant (P = 0.044), with a sensitivity of 66.7% and specificity of 86.8% (P = 0.011). Conclusion: Identifying the number of abnormal lymph nodes on preoperative ultrasound can help to quantify axillary nodal burden and identify patients with high axillary burden, and should be documented as standard in axillary ultrasound reports of patients with breast cancer.
Citation
Ngai, V., Tai, J., Taj, S., Khanfar, H., Sfakianakis, E., Bakalis, A., …Baker, R. (2022). Non-invasive predictors of axillary lymph node burden in breast cancer: a single-institution retrospective analysis. Breast Cancer Research and Treatment, 195(2), 161-169. https://doi.org/10.1007/s10549-022-06672-7
Journal Article Type | Article |
---|---|
Acceptance Date | Jul 2, 2022 |
Publication Date | Jul 21, 2022 |
Deposit Date | Sep 6, 2022 |
Publicly Available Date | Sep 6, 2022 |
Journal | Breast Cancer Research and Treatment |
Print ISSN | 0167-6806 |
Publisher | Springer Verlag |
Volume | 195 |
Issue | 2 |
Pages | 161-169 |
DOI | https://doi.org/10.1007/s10549-022-06672-7 |
Publisher URL | https://doi.org/10.1007/s10549-022-06672-7 |
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Licence
http://creativecommons.org/licenses/by/4.0/
Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/
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