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  • Title: Breast conserving surgery after primary chemotherapy in locally advanced breast cancer.
    Author: Asoglu O, Muslumanoglu M, Igci A, Ozmen V, Karanlik H, Ayalp K, Bozfakioglu Y, Kecer M, Parlak M.
    Journal: Acta Chir Belg; 2005 Feb; 105(1):62-8. PubMed ID: 15790205.
    Abstract:
    PURPOSE: Primary chemotherapy is being given in the treatment of locally advanced breast cancers (LABC), but a major concern is local recurrence after therapy. The aim of this study was to assess the role of breast conserving surgery (BCS) in patients with locally advanced breast cancer. MATERIAL AND METHODS: Twenty-eight patients, presenting LABC (T any, N 012, M0) were treated with primary chemotherapy comprising of cyclophosphamide, doxorubicin and fluorouracil and then BCS followed by radiotherapy were examined between the years 1992-2002 retrospectively. Before neoadjuvant chemotherapy, seven patients (25%) were Stage IIB, 19 patients (68%) Stage IIIA and two patients (7%) Stage IIIB. Survival times and curves were established according to the Kaplan-Meier method and compared by means of the log-rank test. The chi-square test and log rank test were performed for univariate statistical analysis of each prognostic factor. P values in multivariate analysis were carried out by the Cox's proportional hazards regression model. All p values were two-sided in tests and p values <0.05 were considered significant. RESULTS: Clinical down staging was obtained in 25 (89%) of patients. Three (11%) patients had complete clinical response, 22 (78%) patients with partial response and 3 (11%) had stable disease. The primary tumour could not be palpated after chemotherapy in 6 (21%) of 28 patients presenting with palpable mass, therefore needle localization was performed for BCS. Median follow-up was 51.9 months (ranging 10 to 118 months). Local recurrence was detected in 4 (14%) patients. Distant metastasis developed in 5 (18%) patients. Three of the patients died of distant metastases and two of them are alive at 49 months. Five-year survival rate was 66%. Statistically, there were no significant factors in terms of local recurrence. Histological grade and menopause status were significantly associated with overall survival (p = 0.018) and nuclear grade was the one significant factor on distant disease-free survival in univariate analysis (p = 0.006). In multivariate analysis, there were no significant factors in terms of overall and distant disease-free survival CONCLUSIONS: Negative margin is more important than the clinical and histological parameters, such as pretreatment stage, clinical response rate, ER and PR in terms of local recurrence. BCS can be performed safely by achieving free surgical margin in patients who have small sized tumour and with either N2 axillary involvement or skin invasion.
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