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  • Title: [Ductal carcinoma in situ treated with radiation therapy and additional boost].
    Author: Geiss R, Cabel L, Touboul E, Lefranc JP, Daraï É, Lauratet B, Monnier L, Haberer-Guillerm S, Deluen F, Schlienger M, Huguet F.
    Journal: Cancer Radiother; 2015 May; 19(3):175-9. PubMed ID: 25921619.
    Abstract:
    PURPOSE: Women with ductal carcinoma in situ are treated with breast-conserving surgery and radiation therapy. The impact of an additive boost radiation is under evaluation. PATIENTS AND METHODS: All women treated for ductal carcinoma in situ with breast-conserving surgery and whole breast radiation therapy at a total dose of 45Gy with a boost radiation from 1990 to 2008 have been included in this retrospective monocentric retrospective study. RESULTS: We included 171 patients. Boost radiation to the surgical bed was delivered by brachytherapy in 66 patients (39%), by direct en-face electron beam in 86 patients (50%), and by tangential fields using photon beams in 19 patients (11%). Median follow-up was 95.1months. Eight local relapses (4.6%) have occurred. The 10-year local recurrence-free survival rate was 97%. The 10-year overall survival rate was 98%. On multivariable analysis, brachytherapy (P=0.05; HR=5.15; IC=1-26.3) was associated with a reduction risk of local recurrence-free survival. CONCLUSION: In our experience, women treated for a ductal carcinoma in situ with breast-conserving surgery and whole breast radiation therapy with a boost radiation have a high 10-year local recurrence-free survival rate.
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