Radiotherapy in implant-based immediate breast reconstruction: risk factors, surgical outcomes, and patient-reported outcome measures in a large Swedish multicenter cohort.

The purpose of this large cohort study was to analyze the effects of prior and postoperative radiotherapy (RT) on surgical outcomes and patient-reported outcome measures (PROMs) in implant-based immediate breast reconstruction (IBR). All breast cancer patients (n = 725, of whom 29 had bilateral IBR) operated with implant-based IBR at four Stockholm hospitals from 2007 to 2011 were included. The median follow-up was 43 months.