Breast 2010 May 18
The impact of the loco-regional treatment in elderly breast cancer patients: hypo-fractionated exclusive radiotherapy, single institution long-term results.   
ABSTRACT
PURPOSE
To assess the efficacy of exclusive hypo-fractionated radiotherapy (HFRT) without previous breast-conserving surgery (BCS) in elderly women.
MATERIALS AND METHODS
From 1995 to 1999, we have treated with breast-conserving treatment 396 patients older than 70 years with early-stage breast cancer (T1,T2 tumours) at the Institut Curie, Paris, France. Seventy-nine consecutive elderly non-metastatic patients treated for early breast cancer have been treated with HFRT. Of them, 50 underwent BCS followed by HFRT of 32.5 Gy/5 fractions/5 weeks, and 29 patients (presented with different co-morbidities, inoperable or patients' refusal, and/or transportation problems) received the same HFRT schedule followed by a 13 Gy boost (two fractions of 6.5 Gy) as exclusive radiotherapy treatment. This population of 29 patients has been studied. In case of hormonal positive status, hormonal therapy was also proposed to the patients.
RESULTS
There was a median follow-up of 93 months (9-140 months). At 7-year follow-up, the cause-specific survival was 96.4% (confidence interval (CI) 95: 89.8.6-100%), the metastasis-free survival rate was 92.4% (CI 95: 82.8-100%) and the loco-regional control rate was 95.8% (CI 95: 88.2-100%).
CONCLUSIONS
This long-term follow-up retrospective study demonstrated acceptable local control and good outcome in elderly patients treated by exclusive HFRT for early breast cancer. However, large-scale prospective randomised trials are needed to confirm these results.

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