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Am J Surg. 2009 Jul;198(1):83-91. doi: 10.1016/j.amjsurg.2008.09.016. Epub 2009 Mar 6.

Four-year clinical update from the American Society of Breast Surgeons MammoSite brachytherapy trial.

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  • 1Department of Surgical Oncology, The University of Texas MD Anderson, Cancer Center, Houston, TX 77030, USA.

Abstract

BACKGROUND:

We present a 4-year update on the efficacy, cosmetic results, and complications of MammoSite breast brachytherapy in patients enrolled in the American Society of Breast Surgeons registry trial.

METHODS:

A total of 1,449 breasts in 1,440 patients with early stage breast cancer undergoing breast-conserving therapy were treated with adjuvant, accelerated partial breast irradiation (APBI) (34 Gy in 3.4-Gy fractions) delivered with the MammoSite device. The median follow-up period for the entire group was 36.1 months.

RESULTS:

The 3-year actuarial rate of ipsilateral breast tumor recurrence was 2.15%. The 3-year actuarial rate of axillary recurrence was .36%. Complication rates were as follows: infection, 9.5%; seroma, 26.8% (symptomatic seroma, 12.7%); and fat necrosis, 2.0%. The percentages of breasts with good or excellent cosmetic results were as follows: 12 months, 95%; 24 months, 94%; 36 months, 94%; and 48 months, 91%.

CONCLUSIONS:

Locoregional control, complications, and cosmetic outcomes from MammoSite APBI at the 4-year update are acceptable and similar to results seen with other forms of APBI.

PMID:
19268900
[PubMed - indexed for MEDLINE]
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