Five-year results of accelerated partial breast irradiation: A single-institution retrospective review of 289 cases.

Purpose: The purpose of the study was to describe our institutional experience with accelerated partial breast irradiation (APBI) using multicatheter brachytherapy with high-dose-rate. We report 5-year survival outcomes, cosmesis, and treatment-related toxicity.

Methods And Materials: This included a retrospective review of patients who underwent breast-conserving surgery followed by APBI at our institution from 2004 to 2017.