• Breast Care · Aug 2015

    Review

    Radiotherapy of the Lymphatic Pathways in Early Breast Cancer.

    • Marie-Luise Sautter-Bihl and Felix Sedlmayer.
    • Klinik für Radioonkologie und Strahlentherapie, Städtisches Klinikum Karlsruhe, Germany.
    • Breast Care. 2015 Aug 1; 10 (4): 254-8.

    AbstractInternational guidelines reveal substantial differences regarding indications for regional nodal irradiation (RNI). Recently, several randomized studies provided new insights and these are discussed here. Patients with 1-3 positive nodes seem to profit from RNI compared to whole-breast (WBI) or chest-wall irradiation (CWI) alone, both with regard to locoregional control and disease-free survival. Irradiation of the regional lymphatics including axillary, supraclavicular and internal mammary nodes provided a small but significant survival benefit in recent randomized trials and 1 meta-analysis. Lymph node irradiation yields comparable tumor control in comparison to axillary lymph node dissection while reducing the rate of lymph edema. Data concerning the impact of 1-2 macroscopically affected sentinel nodes or microscopic metastases on prognosis are equivocal. Recent data suggest that the current restrictive use of RNI should be scrutinized, as the hazard-benefit relation appears to shift towards an improvement of outcome.

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