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Cited by 672

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Breast Cancer Risk After Bilateral Prophylactic Oophorectomy in BRCA1 Mutation Carriers

Open access
Rebbeck, T. R., Levin, A. M., Eisen, A., Snyder, C., Watson, P., Cannon-Albright, L., Isaacs, C., Olopade, O., Garber, J. E., Godwin, A. K., Daly, M. B., Narod, S. A., Neuhausen, S. L., Lynch, H. T., Weber, B. L.·1999·JNCI Journal of the National Cancer Institute

Abstract

BACKGROUND: The availability of genetic testing for inherited mutations in the BRCA1 gene provides potentially valuable information to women at high risk of breast or ovarian cancer; however, carriers of BRCA1 mutations have few clinical management options to reduce their cancer risk. Decreases in ovarian hormone exposure following bilateral prophylactic oophorectomy (i.e., surgical removal of the ovaries) may alter cancer risk in BRCA1 mutation carriers. This study was undertaken to evaluate whether bilateral prophylactic oophorectomy is associated with a reduction in breast cancer risk in BRCA1 mutation carriers. METHODS: We studied a cohort of women with disease-associated germline BRCA1 mutations who were assembled from five North American centers. Surgery subjects (n = 43) included women with BRCA1 mutations who underwent bilateral prophylactic oophorectomy but had no history of breast or ovarian cancer and had not had a prophylactic mastectomy. Control subjects included women with BRCA1 mutations who had no history of oophorectomy and no history of breast or ovarian cancer (n = 79). Control subjects were matched to the surgery subjects according to center and year of birth. RESULTS: We found a statistically significant reduction in breast cancer risk after bilateral prophylactic oophorectomy, with an adjusted hazard ratio (HR) of 0.53 (95% confidence interval [CI] = 0.33-0.84). This risk reduction was even greater in women who were followed 5-10 (HR = 0. 28; 95% CI = 0.08-0.94) or at least 10 (HR = 0.33; 95% CI = 0.12-0.91) years after surgery. Use of hormone replacement therapy did not negate the reduction in breast cancer risk after surgery. CONCLUSIONS: Bilateral prophylactic oophorectomy is associated with a reduced breast cancer risk in women who carry a BRCA1 mutation. The likely mechanism is reduction of ovarian hormone exposure. These findings have implications for the management of breast cancer risk in women who carry BRCA1 mutations.

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Metadata

Authors
Rebbeck, T. R., Levin, A. M., Eisen, A., Snyder, C., Watson, P., Cannon-Albright, L., Isaacs, C., Olopade, O., Garber, J. E., Godwin, A. K., Daly, M. B., Narod, S. A., Neuhausen, S. L., Lynch, H. T., & Weber, B. L.
Venue
JNCI Journal of the National Cancer Institute
Published
1999-09-01
Volume
91
Issue
17
Pages
1475-1479
ISSN
  • 0027-8874 (ISSN-L)
  • 1460-2105
OpenAlex
W2101699473
Cited by
672
References
1
FWCI
33.10
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Breast Cancer Risk After Bilateral Prophylactic Oophorectomy in BRCA1 Mutation Carriers. https://app.cochat.ai/papers/10.1093/jnci/91.17.1475
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Rebbeck, T. R., Levin, A. M., Eisen, A., Snyder, C., Watson, P., Cannon-Albright, L., Isaacs, C., Olopade, O., Garber, J. E., Godwin, A. K., Daly, M. B., Narod, S. A., Neuhausen, S. L., Lynch, H. T., & Weber, B. L. (1999). Breast Cancer Risk After Bilateral Prophylactic Oophorectomy in BRCA1 Mutation Carriers. JNCI Journal of the National Cancer Institute. https://doi.org/10.1093/jnci/91.17.1475

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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