The incidence of endometrial cancer in women with BRCA1 and BRCA2 mutations: an international prospective cohort study.
Gynecol Oncol
; 130(1): 127-31, 2013 Jul.
Article
em En
| MEDLINE
| ID: mdl-23562522
ABSTRACT
OBJECTIVE:
To evaluate the risk of endometrial cancer in women who carry a mutation in the BRCA1 or the BRCA2 gene.METHODS:
We followed 4456 women with a BRCA1 or a BRCA2 mutation for incident cases of endometrial cancer. The incidence of endometrial cancer was estimated per 100,000 women per year. The hazard ratios for endometrial cancer were estimated by calculating standardized incidence ratios (SIRs) according to age group and country of residence. We estimated the impact of tamoxifen and hormone replacement therapy on the incidence of endometrial cancer in BRCA1 and BRCA2 carriers.RESULTS:
After a mean follow-up of 5.7 years, we identified 17 endometrial cancers (13 cases in BRCA1 and 4 cases in BRCA2). The SIR for BRCA1 carriers was 1.91 (95% CI 1.06-3.19, p=0.03) and for BRCA2 carriers was 1.75 (95% CI 0.55-4.23, p=0.2). The SIR was 4.14 (95% CI 1.92 to 7.87) for women who received tamoxifen and was 1.67 (95% CI 0.81 to 3.07) for women who did not receive tamoxifen. The ten-year cumulative risk of endometrial cancer in women who were treated with tamoxifen was 2.0%.CONCLUSIONS:
The risk of endometrial cancer is higher in BRCA1 mutation carriers than in the general population. The excessive risk is largely attributable to a history of tamoxifen use, but the actual risk of endometrial cancer associated with tamoxifen is small. It is important to discuss hysterectomy at the time of prophylactic bilateral salpingo-oophorectomy if tamoxifen is to be considered.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Neoplasias do Endométrio
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Mutação em Linhagem Germinativa
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Genes BRCA1
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Genes BRCA2
Tipo de estudo:
Etiology_studies
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Incidence_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Adult
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Female
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Humans
/
Middle aged
País/Região como assunto:
America do norte
/
Europa
Idioma:
En
Revista:
Gynecol Oncol
Ano de publicação:
2013
Tipo de documento:
Article