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. 2021 Aug;188(3):641-648.
doi: 10.1007/s10549-021-06241-4. Epub 2021 May 3.

Effect of surgical complications on outcomes in breast cancer patients treated with mastectomy and immediate reconstruction

Emily L Siegel  1 , Junmin Whiting  1 , Younchul Kim  1 , Weihong Sun  1 , Christine Laronga  1 , M Catherine Lee  2
Affiliations

Effect of surgical complications on outcomes in breast cancer patients treated with mastectomy and immediate reconstruction

Emily L Siegel et al. Breast Cancer Res Treat. 2021 Aug.

Abstract

Background: Operative complications affect recurrence in non-breast malignancies. Rising rates of mastectomy with immediate reconstruction and their increased post-operative complications fuel concerns for poorer outcome in breast cancer (BC). We sought to determine the effect of complications on recurrence in BC patients.

Methods: A single-institution retrospective review was conducted of incident BC treated with mastectomy and immediate reconstruction. Overall survival and recurrence were compared between patients with complications to those without.

Results: Of 201 patients (350 mastectomies, 86 nipple-sparing), 62 (30.8%) had a surgical complication. Patients with complications were older, but groups were similar for type of reconstruction, tobacco use, hormone receptor status, HER2, lymphovascular invasion, and pathologic stage (all p > 0.05). Twenty-two complications (10.9%) were infection, 5 (2.5%) dehiscence, 14 flap necrosis (7%), 21 hematomas (10.4%), and 8 nipple necroses (9%). Recurrence occurred in 18 (8.9%) patients: 4 local, 2 regional, and 12 distant. After 8.9 years of median follow-up, patients with complications trended towards higher recurrence (hazard ratio (HR) 2.23, log-rank p = 0.08, Cox regression p = 0.05), particularly with nipple necrosis (HR 3.28, log-rank p = 0.09, regression p = 0.06). Patients with other complications had similar recurrence-free survival to those without (all p > 0.05). Higher stage (HR 13.66, log-rank p = 0.03) and adjuvant radiation (HR 2.78, log-rank p = 0.04) cases were more likely to recur. Patients with complications had similar overall survival to those without (log-rank p > 0.05).

Conclusion: BC patients with surgical complications do not have lower overall survival. This finding may be due to the improved prognosis compared to non-breast malignancies.

Keywords: Breast cancer; Mastectomy; Overall survival; Reconstruction; Recurrence; Surgical complications.

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