Abstract 14175: Risk of Cardiovascular Disease in Women Who Underwent Salpingo-Oophorectomy to Prevent Hereditary Breast Ovarian Cancer: A Systematic Review and Meta-Analysis

Abstract

Introduction: Hereditary breast and ovarian cancer (HBOC) syndrome is defined by family history and identification of germline pathogenic variants (PVs). In particular, the mutations in BRCA1/2 (BRCAm) increased approximately 44% and 17% risk of ovarian cancer or fallopian tube cancer and 72% and 69% risk of breast cancer. Risk-reducing salpingo-oophorectomy (RRSO), the physiologic removal of the ovaries and fallopian tubes, effectively reduces the risk of ovarian cancer by 80-95% in women with HBOC. Hypothesis: Is performing a RRSO in women with HBOC or BRCAm associated with the development of cardiac and metabolic diseases? Aims: To assess the risk of myocardial infarction (MI)/coronary artery disease (CAD), hypertension, diabetes mellitus (DM), and hypercholesterolemia/dyslipidemia among women with HBOC or BRCA1/2 mutation after performing RRSO. Methods: We searched in PubMed, Scopus, and Web of Science databases for studies that assessed cardiovascular and metabolic events following RRSO in women with HBOC or BRCAm. Statistical analysis was performed using RStudio v4.4.2 using the DerSimonian and Laird random-effects model. Heterogeneity was examined using the Cochran Q test and I 2 statistics. Significance for heterogeneity was set at a p-value<0.01. Results: Five studies were included with a total of 1320 patients. Among them, 956/1320 (72.4%) had BRCAm: 469 (35.5%) had BRCA1 and 400 (30.3%) had BRCA2. The majority of patients (928;69.3%) had RRSO<50 years, and the mean age of the study sample was 54.3 years (41.45-57, 2.35). The incidence of MI events was reported in 18/1126 patients (1.4%, 95% Cl, 5-2.3%; I 2 =40.15%). Most common metabolic comorbidities were hypercholesterolemia. Observed in 170/994 women (19.6%, 95% Cl, 4.6-34.6%; I 2 =97.88%), hypertension, in 125/994 women (12.9%, 95% Cl, 4-21.8%; I 2 =96.93%), and DM, reported in 46/1320 patients (3%, 95% Cl, 1.2-4.7%; I 2 =75.41%). Conclusions: This meta-analysis provides evidence to support that patients with HBOC or BRCAm who undergo RRSO have an increased risk of developing heart and metabolic diseases. Larger studies with longer follow-up are required to further explore these associations.