Repercusión de los criterios ACOSOG Z0011 sobre la indicación de la linfadenectomía axilar y el control locorregional en mujeres con ganglio centinela metastásico. Resultados preliminares tras cuatro años de aplicación clínica

Abstract

ObjectiveTo evaluate changes in the indication of axillary lymph node dissection (ALND), its effectiveness in eliminating residual disease, and locoregional control after the adoption of the ACOSOG Z0011 study criteria. Patients and methodsRetrospective study in women with invasive breast cancer treated surgically from February 2010 to May 2014. All women were evaluated according to the ACOSOG-Z0011 trial criteria for the management of metastasized sentinel lymph node (SLN). ResultsA total of 118 women had SLN involvement. Application of the ACOSOG Z0011 criteria avoided ALND in 53 of the 118 patients (44.92% of the patients with metastatic SLN), most of them (73.58%) with micrometastases. The benefit was greater in women undergoing conservative surgery, because 58.23% of these women avoided ALND. A total of 65 ALND were performed for metastatic SLN, of which 37 (55.2%) showed no involvement of axillary fat. ConclusionsAdoption of the ACOSOG Z0011 criteria decreases the indication of ALND, especially in women undergoing conservative surgery. Despite the introduction of these criteria, there is a significant percentage of women (55%) in whom ALND shows no lymph node involvement in axillary fat and produces no benefit.