Association Between Treatment With Brachytherapy vs Whole-Breast Irradiation and Subsequent Mastectomy, Complications, and Survival Among Older Women With Invasive Breast Cancer

Abstract
Brachytherapy is a means of delivering radiation using an implanted radioactive source and has been used to treat various malignancies. Recently, breast brachytherapy has emerged as an alternative to whole-breast irradiation (WBI), the standard radiation treatment after lumpectomy.1,2 Compared with WBI, brachytherapy irradiates less breast tissue and requires a much shorter course of treatment.