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Background: Women at high risk to develop ovarian cancer opt for risk-reducing salpingo-oophorectomy (RRSO) to reduce the risk by 80-96%. RRSO leads to a direct onset of menopause in premenopausal women. Hormone replacement therapy (HRT) can be used to mitigate menopausal symptoms after RRSO. However, it is unclear whether HRT in these women is safe in terms of breast cancer (BC) risk. Methods: We performed a literature search and investigated national guidelines on the use of HRT following RRSO in BRCA 1 and BRCA 2 mutation carriers. We analyzed differences and similarities between the guidelines and describe what these guidelines were based upon. Results: Seven articles regarding HRT following RRSO in BRCA 1 and BRCA 2 mutation carriers were identified. None of the included studies yielded any evidence that short-term use of HRT following RRSO increases the risk of developing BC or negates the protective effect of RRSO in BRCA 1/2 mutation carriers without a personal history of BC. Eleven national guidelines were found and described. Conclusion: Short-term use of HRT after RRSO seems to be safe. The literature is more favorable toward estrogen alone. The ideal dosage and duration of use are unknown and remain to be investigated in future studies.

Objectives: To describe implications of premenopausal risk-reducing salpingo-oophorectomy (RRSO) on quality of life, endocrine symptoms, sexual function, osteoporosis, cardiovascular health, metabolic syndrome, cognitive impairment and safety of hormone replacement therapy., Methods: We searched the following electronic databases: The Cochrane Library, EMBASE, PsycInfo, and MEDLINE. We selected controlled and uncontrolled trials of premenopausal women undergoing RRSO. Two authors independently assessed studies for inclusion. Reference lists of included reports were searched manually for additional studies., Results: Surgical menopause leads to more menopausal complaints and sexual dysfunction than natural menopause. Overall quality of life is not affected by surgery. In the limited literature, there is no evidence that RRSO leads to more osteopenia in comparison with natural menopause at a young age. Cohort studies show a slight impaired cardiovascular health. Cognitive function decreases later in life in premenopausal oophorectomized women. Short-term hormone replacement therapy seems to decline postmenopausal complaints and does not seem to increase the risk for breast carcinoma in mutation carriers without a personal history of breast carcinoma., Conclusions: The conclusions of this systematic review are limited by the absence of randomized, controlled trials. There is growing evidence from observational studies that RRSO may impact negatively on all-cause non-survival endpoints.