Patient-reported and clinical outcomes of oncoplastic breast conserving surgery compared with standard breast conserving surgery - results of the multicenter UMBRELLA breast cancer cohort

Background: Immediate oncoplastic breast conserving surgery (OP-BCS) is becoming increasingly popular to optimize cosmetic outcomes after BCS. Observational studies suggest promising oncological and aesthetic outcomes after OP-BCS. However, only few prospective studies evaluated patient-reported outcomes (PROs) after OP-BCS versus standard BCS (S-BSC) longitudinally. Therefore, the aim of this study was to compare short- and long-term quality of life (QoL), physical and psychosocial well-being, cosmetic and clinical outcomes in breast cancer survivors treated with OP-BCS versus S-BCS.