Outcomes of immediate oncoplastic surgery and adjuvant radiotherapy in breast cancer patients

Autor: Kai Joachim Borm, Christine Schönknecht, Andrea Nestler, Markus Oechsner, Birgit Waschulzik, Stephanie Elisabeth Combs, Stefan Münch, Markus Niemeyer, Marciana Nona Duma
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: BMC Cancer, Vol 19, Iss 1, Pp 1-8 (2019)
Druh dokumentu: article
ISSN: 1471-2407
DOI: 10.1186/s12885-019-6104-4
Popis: Abstract Background Oncoplastic surgery techniques lead to a rearrangement of the breast tissue and impede target definition during adjuvant radiotherapy (RT). The aim of this study was to assess local control rates after immediate oncoplastic surgery and adjuvant RT. Methods This study comprises 965 patients who underwent breast-conserving therapy and adjuvant RT between 01/2000 and 12/2005. 288 patients received immediate oncoplastic surgery (ONC) and 677 patients breast-conserving surgery only (NONC). All patients were treated with adjuvant external tangential-beam RT (total dose: 50/50.4 Gy; fraction dose 1.8/2.0 Gy). An additional boost dose of 10–16 Gy to the primary tumor bed was given in 900 cases (93.3%). Local control rates (LCR), Progression free survival (PFS) and overall survival (OS) were assessed retrospectively after a median follow-up period of 67 (Q25-Q75: 51–84) months. Results No significant difference was found between ONC and NONC in regard to LCR (5-yr: ONC 96.8% vs. NONC 95.3%; p = 0.25). This held also true for PFS (5-yr: ONC 92.1% vs. NONC 89.3%; p = 0.09) and OS (5-yr: ONC 96.0% vs. NONC 94.8%; p = 0.53). On univariate analyses G2–3 (p = 0.04), a younger age (p = 0.01), T-stage (p
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