Induction chemotherapy followed by breast conservation for locally advanced carcinoma of the breast |
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Authors: | GF Schwartz CA Birchansky LT Komarnicky CM Mansfield RI Cantor WA Biermann FM Fellin J McFarlane |
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Affiliation: | Department of Surgery, Jefferson Medical College, Philadelphia, PA 19107-4305. |
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Abstract: | BACKGROUND: Few women with locally advanced breast cancer remain disease-free, even for 2 years. Response to induction chemotherapy may be associated with longer disease-free and overall survival rates. The role of breast conservation in selected patients with response to induction chemotherapy was evaluated. METHODS: Since 1979, patients with Stages IIB and III breast cancer have undergone induction chemotherapy; patients with response continued chemotherapy until a plateau of regression was achieved. Before 1983, all patients having a response to chemotherapy underwent mastectomy; since 1983, selected patients have undergone breast conservation. Outcomes were tallied comparing these two groups of patients. RESULTS: The study group included 189 women, who were followed up for 12-159 months (median, 46 months) after diagnosis. Of the patients, 85% had a response to induction chemotherapy. Patients with no response were excluded from additional consideration in this study. One hundred three (64%) women underwent mastectomy; 55 (36%) were treated with breast conservation. The disease-free 5-year survival rate was 61% for all patients with a response to chemotherapy; 56% for those having mastectomy and 77% for those having breast conservation. The overall 5-year survival rate was 69% for all patients with a response to chemotherapy, 67% for those undergoing mastectomy and 80% for those having breast conservation. CONCLUSIONS: Induction chemotherapy achieves significant tumor regression in most women with locally advanced breast cancer, permitting subsequent breast conservation or mastectomy with a greater expectation of long-term success. Breast conservation is used more frequently with the same expectation of success as mastectomy, presuming careful selection based on response to chemotherapy. |
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