JOURNAL ARTICLE

Accelerated partial-breast irradiation vs conventional whole-breast radiotherapy in early breast cancer: a case-control study of disease control, cosmesis, and complications

Tabassum Wadasadawala, Rajiv Sarin, Ashwini Budrukkar, Rakesh Jalali, Anusheel Munshi, Rajendra Badwe
Journal of Cancer Research and Therapeutics 2009, 5 (2): 93-101
19542664

CONTEXT: Accelerated partial-breast irradiation (APBI) using various approaches is being increasingly employed for selected women with early breast cancer (EBC).

AIMS: To conduct a case-control study comparing disease control, cosmesis, and complications in patients with EBC undergoing APBI using multicatheter interstitial brachytherapy vs those receiving conventional whole breast radiotherapy (WBRT).

SETTINGS AND DESIGN: Women with EBC fulfilling the American Brachytherapy Society (ABS) criteria were selected as 'cases' if treated with APBI or as 'controls' if offered WBRT during the period from May 2000 to December 2004.

MATERIALS AND METHODS: APBI patients were treated with high-dose-rate brachytherapy (HDR) to a dose of 34 Gy/10#/6-8 days. WBRT was delivered to the whole breast to a dose of 45 Gy/25# followed by tumor bed boost, either with electrons (15 Gy/6#) or interstitial brachytherapy (HDR 10 Gy/1#).

RESULTS: At the median follow-up of 43.05 months in APBI and 51.08 months in WBRT there was no difference in overall survival (OS), disease-free survival (DFS), late arm edema, and symptomatic fat necrosis between the two groups. However, APBI resulted in increase in mild breast fibrosis at the tumor bed. Telangiectasias were observed in three patients of the APBI group. The cosmetic outcome was significantly better in the APBI group as compared to the WBRT group (P = 0.003).

CONCLUSIONS: This study revealed equivalent locoregional and distant disease control in the two groups. APBI offered better overall cosmetic outcome, though at the cost of a slight increase in mild breast fibrosis and telangiectasias.

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