Abstract
1572 Background: Bilateral prophylactic salpingo-oophorectomy (BPSO) is the current standard of care for BRCA1/2 mutation carriers and women with a strong family history of ovarian cancer. We have previously demonstrated an association between early oophorectomy, adiposity and mortality in the general population. Methods: A cross sectional study was conducted between November 2009 and January 2013 in 87 women with a family history of breast and ovarian cancer and/or BRCA1/2 mutation to identify the effect of early BPSO on multiple health outcomes. Twenty-two women who underwent BPSO within 1 to 5 years of enrollment while premenopausal and not on hormone therapy were compared to 44 premenopausal women with intact ovaries and the same age distribution and 21 postmenopausal women with intact ovaries and not on hormone therapy. Multiple anthropometric measures were taken and % body fat assessed by DEXA scan. Linear regression was used to estimate differences in these measures between the three groups. Results: The mean ages were 47, 47, and 54 years in the BPSO, premenopausal and postmenopausal groups respectively. Parity, alcohol intake, smoking and race did not significantly differ between groups. Fewer BPSO women had ever used oral contraceptives (OCP) compared to the premenopausal group (p =0.05). The BPSO group had lower mean physical activity (p = 0.05) compared to the two other groups. BMI was increased in the BPSO group but was not statistically different across groups. However, mean waist and abdominal circumference and trunk % body fat were significantly higher among women who underwent BPSO compared to both groups. In multivariate analyses adjusting for age, physical activity, and OCP use, the average waist circumference was 7.92 cm (95% CI 1.46, 14.37) higher and 8.98 cm (95% CI 0.40, 17.46) higher in the BPSO group compared to the postmenopausal and premenopausal groups, respectively. A similar pattern was seen for abdominal circumference. Association with % body fat were not statistically significant. Conclusions: This pilot study suggests that increased central adiposity, is a sequelae of BPSO in young women. Longitudinal studies are needed to confirm results and evaluate the efficacy of interventions.
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