The iTOP trial: Comparing immediate techniques of oncoplastic surgery with conventional breast surgery in women with breast cancer-A prospective, controlled, single-center study

Introduction: Oncoplastic techniques allow resection of larger tumors, permitting breast conservation in cases otherwise requiring mastectomy. We sought to prospectively compare quality of life (QoL) in patients under-going oncoplastic surgery as compared to conventional breast conservation (CBC) or mastectomy is lacking. Methods: Patients diagnosed with BIRADS IV-VI lesion were eligible if resection of >= 10% of the breast volume was planned. Patients were allowed to decide whether they wanted to undergo CBC or oncoplastic breast con-servation (OBC). Patients who underwent mastectomy and immediate breast reconstruction (IBR) were also included for comparison. The primary endpoint was breast self-esteem using the Breast Image Scale (BIS) at 12 months, secondary endpoints were perioperative morbidity and QoL using the BREAST-Q questionnaire. Results: From 2011 to 2016, 205 patients were included in the study. 116 patients (56.6%) received CBC, 46 (22.4%) OBC and 43 (21%) MIBR. Women in the OBC group were more likely to have tumors >= 2 cm than those in the CBC group (34.7% vs. 17.5%, respectively). Women who underwent MIBR were more likely to have tu-mors > 5 cm than those in the CBC and OBC groups (23% vs 1% and 10%, respectively). The BIS and BREAST-Q improved in each group after 12 months but did not differ significantly between groups at any time point. Surgical complications (seroma, bleeding, infection, necrosis) were numerically more likely in the OBC and MIBR groups. Conclusion: OBC and the MIBR allow for resection of larger tumors with a similar quality of life as CBC.

Automated summary

This study aimed to compare the quality of life in patients undergoing oncoplastic surgery, conventional breast conservation, or mastectomy. The results showed that oncoplastic breast conservation can achieve a similar quality of life as conventional breast conservation.