Omission of sentinel lymph node biopsy in breast cancer: a survey of Brazilian breast surgeons

Sentinel lymph node biopsy (SLNB) is used to assess axillary involvement in patients with early-stage breast cancer and clinically node-negative axillae. In the late twentieth century, SLNB replaced axillary lymph node dissection after randomized trials demonstrated similar survival rates but lower morbidity.^(,)

Over the last few years, new advances have resulted in the de-escalation of axillary surgery. A randomized clinical trial with a 10-year follow-up period (ACOSOG Z0011) evaluated the omission of axillary lymph node dissection in patients with early-stage breast cancer, clinically node-negative axillae, and up to two positive axillary sentinel lymph nodes undergoing breast-conserving treatment and radiation therapy and the study found similar overall survival and local recurrence rates between patients who underwent axillary dissection and those who did not.⁽⁾

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Keywords: Breast neoplasms; Mastectomy, segmental; Sentinel lymph node biopsy; Overtreatment; Surveys and questionnaires; Survival analysis

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