Abstract P3-05-13: INFLUENCE OF METABOLIC SYNDROME ON OVERALL SURVIVAL (OS), DISEASE FREE SURVIVAL (DFS) AND INVASIVE FREE SURVIVAL (IFV) IN A COHORT OF PATIENTS TREATED FOR BREAST CANCER IN BRAZIL
Authors: ANTONINI MARCELO , GUIMARAES AMANDA LEAL , RICHTER FERNANDA GRACE BAUk , FERRARO ODAIR , LOPES REGINALDO G. COELHO , REAL JULIANA M. , MATTAR ANDRE 
Published: March 2023

Abstract
Introduction: Metabolic syndrome can be defined as a set of conditions - central obesity (waist circumference), elevated blood pressure, reduced HDL cholesterol, increased triglycerides and glucose intolerance - which is known to be associated with a higher risk in the development of cardiovascular disease and type 2 diabetes. It affects approximately 30% of the population of women over 50 years of age. In view of the risk factors described above, it is important to seek, in addition to the screening recommended by the Ministry of Health (a mammogram every two years in women aged 50 to 69 years), ways to reduce the risk of breast cancer with regard to to behavioral factors. Practicing the maintenance of adequate weight and physical activities can contribute to the reduction of this pathology. Therefore, even in the pathophysiology of breast cancer, its relationship with the metabolic syndrome is seen, which is often the cause - and even consequence - women treated for breast cancer seem to have an additional risk of metabolic syndrome, resulting from excess adiposity. and effect of treatments. Objectives: To evaluate the relationship between metabolic syndrome at the diagnosis of breast cancer and overall survival, disease-free survival and invasive disease-free survival.
Methodology: Retrospective longitudinal observational study of the cohort type carried out in the Mastology sector of the Gynecology and Obstetrics Service of the Hospital do Servidor Público Estadual de São Paulo “Francisco Morato Oliveira. We evaluated the rates of local recurrence, distant metastases and overall survival of patients with malignant breast cancer in each group.
Results: From January 2017 to December 2020, 375 patients underwent surgical treatment for breast cancer at the Hospital do Servidor Público Estadual, of which 25 were excluded due to loss of follow-up, 10 due to incomplete data and 5 due to diagnosis of metastases. Thus, 335 patients were eligible for the study, with a mean age of 63.4 ± 1.4 years, and a mean follow-up time of 48 ± 1.4 years. Metabolic syndrome (MS) is present in 109 (32 .5%) patients, while 226 (67.5%) do not have MS. Regarding the characteristics of prognostic factors, that is, KI 67, molecular classification and staging, in table 3 we can observe that patients with metabolic syndrome have a very similar distribution, while those without MS have a KI 67 ≥ 14% in 62.4% of the patients. patients with a significant difference. The molecular profile in MS patients is 39.4% Luminal A patients and 42.5% Luminal B patients without MS, with a significant difference in distribution. Regarding clinical staging, patients with MS have initial clinical stage I and IIA in 54.1%, and advanced stage IIB 20.2% III 25.7%, while patients without MS have initial clinical stage 65%, advanced stage IIB 11.1%m III 23.9, results with a significant difference. When we evaluated the presence of obesity as a factor of worsening of prognostic factors, we did not find significant differences. We evaluated the temporal outcomes of overall survival, disease-free survival, and invasive disease-free survival. The overall sample survival was 37.3 years with a CI 1.1 years, disease-free survival was 35.9 years with a CI 1.2 years, and invasive disease-free survival was 36.9 years with CI 1,3 years. When we compared these outcomes with the presence of MS, we observed a significant difference in all outcomes.
Conclusions: The presence of MS at diagnosis does not worsen overall survival, disease-free survival or invasive disease-free survival.
Overall Survival (OS) for Breast Cancer and Metabolic Syndrome Overall Survival (OS) for Breast Cancer and Metabolic Syndrome
Disease Free Survival (DFS) for Breast Cancer and Metabolic Syndrome Disease Free Survival (DFS) for Breast Cancer and Metabolic Syndrome
Invasive Free Survival (IFS) for Breast Cancer and Metabolic Syndrome Invasive Free Survival (IFS) for Breast Cancer and Metabolic Syndrome
Citation Format: MARCELO ANTONINI, AMANDA LEAL GUIMARAES, FERNANDA GRACE BAUk RICHTER, ODAIR FERRARO, REGINALDO G. COELHO LOPES, JULIANA M. REAL, ANDRE MATTAR. INFLUENCE OF METABOLIC SYNDROME ON OVERALL SURVIVAL (OS), DISEASE FREE SURVIVAL (DFS) AND INVASIVE FREE SURVIVAL (IFV) IN A COHORT OF PATIENTS TREATED FOR BREAST CANCER IN BRAZIL [abstract]. In: Proceedings of the 2022 San Antonio Breast Cancer Symposium; 2022 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2023;83(5 Suppl):Abstract nr P3-05-13.