Powell C Bethan
Division of Gynecologic Oncology, Kaiser Permanente Medical Group, San Francisco, California, USA.
Curr Opin Obstet Gynecol. 2015 Feb;27(1):14-22. doi: 10.1097/GCO.0000000000000143.
As more women with an inherited increased risk of gynecologic cancer are identified, the clinician will be challenged to counsel these women on risk-reducing strategies.
Although there are some recent studies that show potential for ovarian cancer surveillance strategies, there remains no definitive evidence that surveillance leads to a stage shift or a reduction in mortality. Recent studies support the following conclusions: first, oral contraceptive use reduces ovarian cancer risk without significantly increasing breast cancer risk, second, salpingo-oophorectomy leads to a reduction in ovarian cancer, breast cancer, and overall mortality for women who are carriers of BRCA1 and BRCA2 mutations, and third, the 'ovarian cancers' associated with BRCA mutations actually include fallopian tube and peritoneal cancer and may have a precursor lesion in the fallopian tube; this observation has prompted the provocative suggestion of removing the fallopian tube to reduce ovarian cancer risk.
Because of the interplay between the hormonal impact of ovarian function on breast cancer risk, the risk reduction associated with oophorectomy, and the impact of early menopause on other health outcomes, an integrated multidisciplinary approach is required to aid in the increasingly complex decisions faced by women with high inherited risk of developing gynecologic cancers.
随着越来越多具有遗传性妇科癌症风险增加的女性被识别出来,临床医生在为这些女性提供降低风险策略的咨询方面将面临挑战。
尽管最近有一些研究显示卵巢癌监测策略具有潜力,但仍没有确凿证据表明监测能导致分期改变或降低死亡率。最近的研究支持以下结论:第一,使用口服避孕药可降低卵巢癌风险,且不会显著增加乳腺癌风险;第二,对于携带BRCA1和BRCA2突变的女性,输卵管卵巢切除术可降低卵巢癌、乳腺癌及总体死亡率;第三,与BRCA突变相关的“卵巢癌”实际上包括输卵管癌和腹膜癌,且可能在输卵管中有前驱病变;这一观察结果引发了切除输卵管以降低卵巢癌风险的激进建议。
由于卵巢功能的激素影响对乳腺癌风险的相互作用、与卵巢切除术相关的风险降低以及早期绝经对其他健康结局的影响,需要一种综合的多学科方法来帮助具有高遗传性妇科癌症风险的女性应对日益复杂的决策。