Abstract
BackgroundThis study evaluates the combined role of axillary ultrasound (Ax US), fine needle aspiration (FNAC) and intraoperative frozen section analysis of the sentinel node (FS SN) in a practical, time efficient algorithm to reduce the requirement for reoperation for axillary clearance in breast cancer in a busy tertiary unit. MethodsBetween October 2007 and June 2009 188 women underwent Ax US as a first investigation for nodal status. Suspicious nodes were biopsied, negative axillae proceeded to FS SN at time of primary breast surgery. All confirmed positive cases proceeded to immediate axillary clearance. Results93 women had positive axillary nodes at final histology. Ax US + FNAC identified 59 positive axillae and had a sensitivity of 63.4% and specificity of 100%. FS SN identified a further 26 cases with a sensitivity of 76.5% and specificity of 100%. Overall, only 8 women required reoperation for axillary clearance. Sensitivity for the combined procedures was 91.4%. Commencement of adjuvant therapy was significantly less in those women identified earlier compared to those requiring a second operation (23.3 days vs 49.0 days, p < 0.005). Conclusion95.7% of cases were diagnosed accurately in the perioperative period, preventing delay to triage to definitive oncological care and reducing requirement for costly reoperation.
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