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Published on: July 3, 2014
Intraoperative Radiotherapy for Breast Cancer in Elderly Women
S Ophie Guillerm1, Edwige Bourstyn1, Ramona Itti1
1Radiation Oncology Department, Saint-Louis Hospital, Paris, France; Breast Cancer Unit, Saint-Louis Hospital, Paris, France.
Purpose:
To evaluate outcomes and postoperative toxicities after intraoperative radiotherapy (IORT) in elderly women.
Population:
Women older than 65 years, with infiltrating ductal breast cancer ≤3 cm, expressing estrogen receptor (ER+) without Her2 overexpression, and with negative axillary nodes.
Treatment:
Treatment consisted of partial mastectomy with a sentinel lymph node biopsy (SLNB) procedure; in case of positive SLNB, IORT was cancelled. IORT consisted in a total dose of 20 Gy in 1 fraction delivered at the surface of the applicator with the Intrabeam® technique.
Results:
IORT was planned to be administered to a total of 225 patients but was cancelled for 34 patients during surgery. Thus 191 patients were analyzed; mean age was 76 years, with 57 patients (30%) >80 years. Despite inclusion criteria, 15 had lobular carcinoma and 7 were triple negative. With a median follow-up of 40 months, we observed only 1 local recurrence, located in the skin over the initial tumor. The 5-year local relapse rate was 1.7%. A wound healing delay (>15 days) was observed in 21 patients (11%). Sixty-six patients (35%) had postoperative complications, mainly grade 2, resolving within a few days. Two patients needed surgical drainage for local abscesses. Long-term (>1 year) cosmetic outcome was evaluated in 120 patients and was judged excellent or good in 102 (91%).
Conclusion:
IORT can be safely given to elderly women, with a good local control rate and without major toxicities.
