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Erschienen in: Breast Cancer Research and Treatment 1/2021

15.09.2020 | Clinical trial

Long-term survival outcomes of repeat lumpectomy for ipsilateral breast tumor recurrence: a propensity score-matched analysis

verfasst von: Soo Yeon Baek, Jisun Kim, Il Yong Chung, Beom Seok Ko, Hee Jeong Kim, Jong Won Lee, Byung Ho Son, Sei-Hyun Ahn, Sae Byul Lee

Erschienen in: Breast Cancer Research and Treatment | Ausgabe 1/2021

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Abstract

Purpose

This study aimed to compare long-term survival outcomes of repeat lumpectomy with total mastectomy after ipsilateral breast tumor recurrence (IBTR) using propensity score matching (PSM).

Methods

We retrospectively analyzed patients with IBTR who had undergone initial breast-conserving surgery for breast cancer at our institution between January 1990 and December 2013. The Kaplan–Meier method and Cox proportional hazards model were used to compare survival rates between the two groups. PSM was performed using the following covariates: age at initial operation, initial T stage, N stage, hormone receptor status, human epidermal growth factor receptor 2 status, chemotherapy, radiotherapy, and IBTR tumor size.

Results

We enrolled 335 IBTR patients with a median follow-up of 126.6 months. No significant differences were observed in the 5-year overall survival (OS), breast cancer-specific survival (BCSS), OS after IBTR, and BCSS after IBTR and 10-year survival probability between the two groups in a multivariate analysis. After PSM, patients who had undergone repeat lumpectomy and total mastectomy (n = 90 in both groups) were included. No significant differences were observed in the 10-year OS (hazard ratio [HR] 1.08, 95% confidence interval [CI] 0.49–2.39), BCSS (HR 0.83, 95% CI 0.35–1.95), OS after IBTR (HR 0.83, 95% CI 0.38–1.83), and BCSS after IBTR (HR 0.64, 95% CI 0.28–1.47) between the two groups.

Conclusions

No significant differences were observed in survival outcomes between patients with IBTR who underwent repeat lumpectomy or total mastectomy. Our results can be helpful in selecting the appropriate surgical method for IBTR.
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Metadaten
Titel
Long-term survival outcomes of repeat lumpectomy for ipsilateral breast tumor recurrence: a propensity score-matched analysis
verfasst von
Soo Yeon Baek
Jisun Kim
Il Yong Chung
Beom Seok Ko
Hee Jeong Kim
Jong Won Lee
Byung Ho Son
Sei-Hyun Ahn
Sae Byul Lee
Publikationsdatum
15.09.2020
Verlag
Springer US
Erschienen in
Breast Cancer Research and Treatment / Ausgabe 1/2021
Print ISSN: 0167-6806
Elektronische ISSN: 1573-7217
DOI
https://doi.org/10.1007/s10549-020-05932-8

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