Background: Sentinel lymph node biopsy (SLNB) is standard of care in clinico- radiologically negative axilla in early breast cancer case. It’s an oncologically safe alternative to Axillary lymph node dissection (ALND), however factors predicting sentinel node metastasis in Indian population is lacking. Methods: A prospective observational study which recruited 80 patients with breast cancer who underwent SLNB with or without ALND, with evaluation of predictive factors including size, type and quadrant , hormonal status of breast this characteristics were prospectively analyzed to predict the axillary metastasis and need of SLNB . Result: Mean age of the patients included in our study was 52.4 years. On univariate analysis, size (p<0.013), upper outer quadrant (UOQ) (p<0.038), central quadrant (CQ) (0.07) were significantly associated with axillary node metastasis in T2 tumors. While on multivariate analysis, UOQ (P<0.009), CQ (p<0.02) metastasis were associated with axillary node metastasis in T2 tumors. Overall sensitivity, specificity, positive predictive valve (PPV) and negative predictive valve (NPV) of SLNB in predicting axillary node status was 77.59%, 100%, 100% and 62.86% respectively. The overall accuracy was 83.7%. Conclusion: Upper outer quadrant, central quadrant and size of the tumors are important prognostic factors to predict axillary node metastasis without the need of sentinel node biopsy in early breast cancers.
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