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Abstract
With the increase in detection of non-palpable breast lesions through screening, wire-guided localisation (WGL) has long been the favoured method for preoperative localisation. However, this technique comes with several limitations. New methods have been developed, including several non-radioactive, wireless options. We aimed to assess the effectiveness of Savi Scout® localisation (SSL) through this pooled analysis and systematic review. A number of databases were searched for records reporting data on localisation and retrieval of SSL reflectors, as well as re-excision rate. We included our own data from 20 patients (22 reflectors) at our institution. A total of 842 reflectors were inserted across eleven studies and our own data. Pooled analysis revealed an overall successful deployment rate of 99.64% and a successful retrieval rate of 99.64% using SSL. A statistically significant difference in re-excision rate was found in a smaller pooled analysis conducted across four studies comparing SSL and WGL (12.9% and 21.1% respectively, p<0.01). The Savi Scout® localisation system is a safe and effective alternative to WGL. It facilitates flexible scheduling by decoupling radiology and surgery interventions and may reduce the need for re-excision procedures for positive surgical margins.
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