RESUMEN
BACKGROUND/AIM: In 2016, in the United States, more than 50% of breast cancer (BC) cases were diagnosed in patients older than 60 years of age. Our study aimed to estimate the risk of locoregional recurrence (LR) in patients who underwent breast-conservative treatment (BCT), according to age. PATIENTS AND METHODS: This retrospective monocentric study analyzed 613 cases of patients who underwent BCT between 2003 and 2014. Patients were divided into groups according to age: Under70 (under 70 years old) and Over70 (above 70 years old). Margins width, histology results, prognostic and predictive factors were compared. Subgroup analysis was performed for patients who experienced LR. RESULTS: LR Incidence among Under70 and Over70 was 5.4% and 1.7%, respectively (p<0.01). Group Over70 is characterized by larger tumors and a lower Ki67 index (p<0.01). CONCLUSION: Operation time reduction, better aesthetic results and reduced LR risk support BCT. The Over70 group exhibited better outcomes in terms of LR despite larger tumor dimensions.
Asunto(s)
Neoplasias de la Mama/epidemiología , Anciano , Anciano de 80 o más Años , Biomarcadores de Tumor , Neoplasias de la Mama/etiología , Neoplasias de la Mama/patología , Neoplasias de la Mama/cirugía , Estudios de Casos y Controles , Femenino , Humanos , Mastectomía Segmentaria , Persona de Mediana Edad , Recurrencia Local de Neoplasia , Cuidados Posoperatorios , Pronóstico , Receptores de Estrógenos/metabolismo , Estudios Retrospectivos , RiesgoRESUMEN
BACKGROUND/AIM: Neoadjuvant chemotherapy (NAC) for breast cancer (BC) is the gold standard treatment for locally advanced tumors (LABC) that aims at achieving a complete pathological response (pCR). Studies have been conducted to evaluate and identify te concordance between radiological, histopathological and biological variables of BC and final response to therapy, verified by definitive histological examination after surgery. PATIENTS AND METHODS: Ninety-five BC patients were examined and subjected to NAC. Immunohistochemical markers including oestrogen-receptor (ER), progesterone-receptor (PR), Ki67 index, and human epidermal growth factor receptor 2 (HER2) score were examined before and after neoadjuvant treatment. RESULTS: Younger age and a significant decrease in ER expression were associated with better prognosis. Triple Negative (TN) and Her2-type breast cancers benefited most from neoadjuvant chemotherapy with higher frequency of pCR. CONCLUSION: HER2-type and TN BC are correlated with best response to NAC. A statistically significant correlation between radiological images and definitive histological examination was not observed.