1290 A Move to Magseed For Breast Conserving Surgery

Abstract

Abstract Aim Wire guided localisation(WGL) to localise non-palpable breast tumours has been the standard for years. WGL has limitations; patient discomfort, fixed scheduling to facilitate insertion on the day of surgery and wire migration. A 2015 audit in our department found that 51% of patients undergoing wide local excision (WLE) used preoperative localisation techniques; of which 84% was WGL. The overall re-excision rate for WLE was 27%. We altered our practice to Magseed localisation from July 2019 to improve patient experience, and surgical efficiency, as there are similar outcomes between WGL and Magseed in the literature. This audit aims to examine if there are improvements in our re-excision rate. We aim to evaluate which is the best method for localisation in our department. Method A retrospective audit was conducted following registration with the local audit office. Patients who underwent breast conserving surgery between September 2019 and September 2020 were identified. The surgical approach, re-excision and complications were recorded and compared to the 2015 results. Results 100 patients underwent WLE in the study period. The percentage of patients undergoing therapeutic mammaplasty was 26% (14% in 2015). 63% underwent preoperative localisation; of which 71% used Magseed and 5% used wire. The overall re-excision rate was 20%. Conclusions Our re-audit has demonstrated an increase in patients requiring pre-operative localisation, probably due to the use of primary endocrine treatment during COVID-19. We gladly observed 26% improvement in re-excision rates suggesting success with Magseed.