Abstract ES4-1: Partial breast irradiation: Efficacy and patient selection

Abstract

Abstract Partial breast irradiation is an attractive option for patients and clinicians as a smaller region of the breast is irradiated in (usually) a shorter time period compared with whole breast radiation therapy (RT). The hypothesis for this approach is that a smaller irradiated volume is likely to translate into decreased toxicity, whilst maintaining good local control and survival (efficacy). This educational lecture will examine in detail the efficacy of the four “modern” large, randomised partial breast RT trials that have been published in the last 5 years. These include the ELIOT, Targit-A, GEC-ESTRO and IMPORT LOW studies1-4. In addition, the eligibility criteria and baseline characteristics of recruited patients will be considered for each trial in the context of ipsilateral breast tumour relapse rates. Current national and international guidelines regarding patient selection for partial breast RT will also be discussed.