Abstract P5-16-07: Short-term outcomes and QoL following autologous fat transfer in oncoplastic and reconstructive breast surgery

Abstract

Abstract Background: Breast cancer (BC) is with 30% among all cancers the most common cancer among women in Austria. Regarding therapy and management of BC, surgical treatments with resection and reconstruction play a crucial role. Breast-conserving therapy (BCT) represents a common procedure. However, mastectomy is still needed in about 30% of the patients with the diagnosis BC and as prophylactic surgery in indicated cases. Recently, autologous fat transfer (AFT, lipofilling) has been used to improve cosmesis in oncoplastic and reconstructive breast surgery. There is a gap of evidence for the oncological safety as well as the benefit for quality of life (QoL) in patients who had an AFT after the BC or prophylactic surgery. Material and methods: We assessed peri-and postoperative results, oncological outcomes and QoL in 55 patients undergoing AFT after BCT or mastectomy at our department between 2013 and 2018. QoL was assessed with the EORTC QLQ C30 and QLQ-BRECON23 questionnaires. Results: Overall, 55 patients (73 breasts) underwent AFT after BCT or mastectomy. 39 patients had a diagnosis of invasive BC (four bilateral) and six patients a diagnosis of DCIS. 24 mastectomies were done as prophylactic surgery. AFT was done in 22 cases with nipple sparing mastectomy (NSM), in 30 cases with skin sparing mastectomy (SSM), in 9 cases with simple mastectomy ± reconstruction and in 12 cases with BCT. The number of AFT sessions was 1-8 (mean 1.8). The injected fat volume per session was 30-390 ml. There were 10 (14%) complications: 3 hematomas (none needed reintervention), local inflammation requiring antibiotic therapy (n=3), formation of an oil cyst (n=1), and fat necrosis (n=3). In two cases of fat necrosis biopsy was performed to confirm the diagnosis. After a median follow-up of 34 months there was one recurrence (Paget´s disease after BC). QoL data will be presented at the meeting. Conclusion: Lipofilling after mastectomy for cancer appears to be oncologically safe. Our complication rate is relatively high, although additional surgical intervention (biopsy) was only necessary in two cases. Patients considering AFT should be informed about additional risk for biopsy, as well as other common complications. Citation Format: Bjelic-Radisic V, Oberfichtner K, Wurzer P, Trapp E, Rappl T, Reisniger J, Kamolz L-P, Tamussino K. Short-term outcomes and QoL following autologous fat transfer in oncoplastic and reconstructive breast surgery [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P5-16-07.