• John V Kiluk, Quan P Ly, Alfredo A Santillan, Tammi Meade, Daniel Ramos, Douglas S Reintgen, Sophie Dessureault, Michelle Davis, Corinne Shamehdi, and Charles E Cox.
• H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA.
• Ann. Surg. Oncol. 2010 Feb 1; 17 (2): 552-7.

ObjectiveSentinel lymph node (SLN) biopsy has replaced axillary lymph node dissection (ALND) as the staging procedure for breast cancer. SLN biopsy causes less morbidity and is more cost effective than complete ALND. Lymphatic mapping and SLN biopsy have a low false-negative rate, but long-term outcomes in large consecutive series of patients are unavailable.MethodsRetrospective review of a prospectively accrued institutional breast cancer database was performed. The initial mapping of 1,528 patients with invasive breast cancer that demonstrated negative sentinel node biopsy and no axillary dissection in 1,530 cases between January 1995 and June 2003 were collated and reviewed to achieve a long-term follow-up. These 1,528 patients were reviewed for follow-up time, local recurrences, distant metastases, and survival.ResultsA total of 1,530 consecutively mapped invasive breast cancer cases had negative SLN biopsy and no ALND. The mean invasive tumor size of was 1.40 cm. Of patients, 1,212 (79.2%) underwent lumpectomy and 318 (20.8%) underwent mastectomy. Median follow-up was 63 months (range 0.1-144 months). There have been 4 (0.26%) cases presenting with local axillary recurrences, 54 (3.53%) cases presenting with local recurrences in the ipsilateral breast/chest wall, and 24 (1.57%) cases presenting with distant metastases.ConclusionThese data confirm that SLN biopsy is an effective and safe alternative to ALND for detection of nodal metastases in patients with invasive breast cancer and validates its use as the standard tool for nodal staging.

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