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  • Title: Outcome of risk-reducing salpingo-oophorectomy in BRCA carriers and women of unknown mutation status.
    Author: Manchanda R, Abdelraheim A, Johnson M, Rosenthal AN, Benjamin E, Brunell C, Burnell M, Side L, Gessler S, Saridogan E, Oram D, Jacobs I, Menon U.
    Journal: BJOG; 2011 Jun; 118(7):814-24. PubMed ID: 21392246.
    Abstract:
    OBJECTIVE: To compare surgical outcomes and occult cancer rates at risk-reducing salpingo-oophorectomy in BRCA carriers and high-risk women who had not undergone genetic testing. DESIGN: Prospective cohort study. SETTING: Tertiary high-risk familial gynaecological cancer clinic. POPULATION: Women undergoing risk-reducing salpingo-oophorectomy between January 2005 and November 2009. METHODS: Women at high-risk of ovarian/tubal cancer were identified on the basis of the inclusion criteria for the UK Familial Ovarian Cancer Screening Study. Risk management options discussed with 1456 high-risk women included risk-reducing salpingo-oophorectomy. A strict histopathological protocol with serial slicing was used to assess tubes and ovaries. RESULTS: In total, 308 high-risk women (191 with unknown mutation status; 117 known BRCA1/BRCA2 carriers) chose risk-reducing surgery; 94.5% of procedures were performed laparoscopically. The surgical complication rate was 3.9% (95% CI 2.0-6.7). Four ovarian and ten tubal occult invasive/in situ cancers were found. The overall occult invasive cancer rate was 5.1% (95% CI 1.9-10.83) in BRCA1/BRCA2 carriers and 1.05% (95% CI 0.13-3.73) in untested women. When tubal in situ cancers were included, the overall rate was 4.55% (95% CI 2.5-7.5). Two untested women with tubal carcinoma in situ were subsequently found to be BRCA carriers. The median ages of BRCA carriers (58 years; IQR 13.4 years) and untested women (49.5 years; IQR 20.6 years) with occult invasive/in situ cancer were not significantly different (P = 0.454). CONCLUSIONS: Both high-risk women of unknown mutation status and BRCA carriers have a significant (although higher in the latter group) rate of occult invasive/in situ tubal/ovarian cancer, with a similar age distribution at detection. The data has important implications for counselling high-risk women on the likelihood of occult malignancy and perioperative complications at risk-reducing salpingo-oophorectomy. Women with occult disease should be offered genetic testing.
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