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  • Title: Significance of local recurrence as a prognostic factor in the treatment of breast cancer.
    Author: Horiguchi J, Koibuchi Y, Yoshida T, Takata D, Kikuchi M, Rokutanda N, Nagaoka R, Iino Y, Morishita Y.
    Journal: Anticancer Res; 2006; 26(1B):569-73. PubMed ID: 16739322.
    Abstract:
    The aim of this study was to evaluate both the risk factors of local recurrence and the prognostic significance of local recurrence in relation to surgical treatment and/or radiation therapy of breast cancer. A total of 1574 primary breast cancer patients, undergoing surgical treatment and/or radiation therapy between 1980 and 2001, were included in this study. Radical mastectomy was performed in 1144 patients, subcutaneous mastectomy in 141 and breast-conserving therapy in 289. The clinical stage was significantly earlier in the subcutaneous mastectomy and breast-conserving therapy groups than in the radical mastectomy group. A positive surgical margin was observed in 9 (6.4%) out of 141 patients in the subcutaneous mastectomy group and 51 (176%) out of 289 in the breast-conserving therapy group. Local recurrence occurred more frequently in the subcutaneous mastectomy and breast-conserving therapy groups than in the radical mastectomy group. Independent prognostic factors in local recurrence were lymph node metastasis in the radical mastectomy group, and surgical margin in the subcutaneous mastectomy group and the breast-conserving therapy group. Independent prognostic factors in overall survival were local recurrence, lymph node metastasis and estrogen receptor status in the radical mastectomy group, and lymph node metastasis and estrogen receptor status in the breast-conserving therapy group. In conclusion, the surgical margin status is an important factor in the risk of local recurrence in patients who have undergone a subcutaneous mastectomy or breast-conserving therapy. The significance of local recurrence for overall survival may be different among these three treatments.
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