Abstract
Purpose
Immediate breast reconstruction (IBR) following mastectomy remains controversial for locally advanced breast cancer over concerns regarding recurrence and complications which may delay adjuvant therapies. This study aimed to compare the oncologic outcomes and surgical safety of IBR following mastectomy with mastectomy alone (MA) for locally advanced breast cancer.
Methods
All patients treated at the Providence Breast Center between 2012 and 2017 for biopsy-proven locally advanced breast cancer, AJCC (8th edition) clinical stages (IIB–IIIC), were included. Primary outcomes were overall survival (OS), disease-specific survival (DSS), and disease-free survival (DFS). Secondary outcomes included recurrence rate, adjuvant therapy use, and reoperation.
Results
267 patients (112 IBR, 155 MA) were included. On average, IBR patients were younger (48.82 years vs 61.42 years, P < 0.001). Median study follow-up was 50.7 months. OS was higher among IBR patients (86.6% vs 73.5%, P < 0.05). However, no significant differences were found in DSS (87.5% vs 84.5%, P = 0.34), DFS (79.5% vs 78.7%, P = 0.55), local recurrence (0% vs 1.9%, P = 0.194), adjuvant therapy use (95.5% vs 91.6%, P = 0.155), or reoperation (1.8% vs 1.3%, P = 0.559).
Conclusion
IBR is a safe option for patients with locally advanced breast cancer and does not negatively impact survival, cancer recurrence rates, and use of adjuvant therapy.
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Data availability
All data were retrieved from a prospectively maintained hospital database.
Code availability
Analysis was performed using R and RStudio.
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Acknowledgements
The authors would like to acknowledge the physicians in the Department of Surgery at Providence Health Care for their input in this study.
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All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by KT, JSP, LC, CM, and MZ. The first draft of the manuscript was written by KT and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Approved by the University of British Columbia and Providence Health Care research ethics boards.
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Taqi, K., Pao, JS., Chen, L. et al. Immediate breast reconstruction in locally advanced breast cancer: is it safe?. Breast Cancer Res Treat 190, 175–182 (2021). https://doi.org/10.1007/s10549-021-06366-6
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DOI: https://doi.org/10.1007/s10549-021-06366-6