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Postoperative Complications After Breast Cancer Surgery and Effect on Recurrence and Survival: Population-based Cohort Study

Overview
Journal BJS Open
Specialty General Surgery
Date 2024 Dec 14
PMID 39673757
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Abstract

Background: There is conflicting evidence regarding whether postoperative complications after breast cancer surgery are associated with worse oncological outcome. This study aimed to assess the risk of systemic breast cancer recurrence after surgical site infection and also the impact of surgical site infection on locoregional recurrence, breast cancer-specific survival and overall survival.

Methods: This nationwide cohort study included patients who underwent surgery for primary breast cancer in Sweden between January 2008 and September 2019. The study cohort was identified in the Breast Cancer Database Sweden 3.0, a database linking the National Breast Cancer Quality Register to national population-based healthcare registers held by the National Board of Health and Welfare and Statistics Sweden. The primary exposure was surgical site infection within 90 days from surgery, and the primary outcome was systemic recurrence of breast cancer. Secondary outcomes included locoregional recurrence, overall survival and breast cancer-specific survival. Multivariable Cox regression analysis was performed to assess the association between exposure, predictors and outcomes.

Results: Of 82 102 patients included in the study, 15.7% experienced a surgical site infection within 90 days of surgery. Surgical site infection was not significantly associated with systemic recurrence, locoregional recurrence or breast cancer-specific survival after adjustment for confounding variables. Surgical site infection was significantly associated with worse overall survival, but the significant association disappeared in a sensitivity analysis excluding all patients with any kind of malignancy before breast cancer diagnosis.

Conclusion: Surgical site infection after breast cancer surgery does not significantly increase the risk of systemic recurrence. All possible actions should nevertheless be taken to reduce complication rates.

References
1.
Mousa M, Barnea Y, Arad U, Inbal A, Klausner J, Menes T . Association Between Postoperative Complications After Immediate Alloplastic Breast Reconstruction and Oncologic Outcome. Clin Breast Cancer. 2018; 18(4):e699-e702. DOI: 10.1016/j.clbc.2017.11.014. View

2.
Aguirre-Ghiso J . Models, mechanisms and clinical evidence for cancer dormancy. Nat Rev Cancer. 2007; 7(11):834-46. PMC: 2519109. DOI: 10.1038/nrc2256. View

3.
Savioli F, Edwards J, McMillan D, Stallard S, Doughty J, Romics L . The effect of postoperative complications on survival and recurrence after surgery for breast cancer: A systematic review and meta-analysis. Crit Rev Oncol Hematol. 2020; 155:103075. DOI: 10.1016/j.critrevonc.2020.103075. View

4.
Gupta S, King W, Korzeniowski M, Wallace D, Mackillop W . The Effect of Waiting Times for Postoperative Radiotherapy on Outcomes for Women Receiving Partial Mastectomy for Breast Cancer: a Systematic Review and Meta-Analysis. Clin Oncol (R Coll Radiol). 2016; 28(12):739-749. DOI: 10.1016/j.clon.2016.07.010. View

5.
OConnor R, Kiely P, Dunne C . The relationship between post-surgery infection and breast cancer recurrence. J Hosp Infect. 2020; 106(3):522-535. DOI: 10.1016/j.jhin.2020.08.004. View