Women's College Research Institute, Women's College Hospital, Toronto, Ontario, Canada.
Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada.
Int J Cancer. 2020 Sep 1;147(5):1245-1251. doi: 10.1002/ijc.32916. Epub 2020 Feb 29.
Ovarian cancer is the most fatal gynecologic malignancy (50% 5-year survival) due to a typically advanced stage at diagnosis and a high rate of recurrence. Chemoprevention options are limited, and few interventions have been shown to reduce cancer risk or mortality. Emerging data support the model that fallopian tubes are the site of origin for a proportion of high-grade serous cancers. This implies that a subset of cancers may be prevented by removing the fallopian tubes while leaving the ovaries intact. Accordingly, there has been shift in clinical practice for average risk women; some now recommend removal of both the fallopian tubes only instead of tubal ligation for sterilization or at the time of benign gynecologic surgery. This has been termed opportunistic salpingectomy and represents a means of decreasing the burden of ovarian cancer by preventing cancers that arise in the fallopian tubes. There have been no detailed, prospective reports that have estimated ovarian cancer risk reduction with opportunistic salpingectomy, neither among women at baseline population risk nor among women at a high risk of developing the disease. The situation is complicated for women with a BRCA mutation-bilateral salpingo-oophorectomy is a proven means of risk reduction and salpingectomy alone is not the standard of care. Based on the existing data, salpingectomy alone should only be reserved for women with a lifetime risk of ovarian cancer of less than 5%.
卵巢癌是最致命的妇科恶性肿瘤(5 年生存率为 50%),因为通常在诊断时已处于晚期,且复发率较高。化学预防选择有限,很少有干预措施被证明能降低癌症风险或死亡率。新出现的数据支持输卵管是一部分高级别浆液性癌症起源的模型。这意味着通过切除输卵管而保留卵巢完整,可以预防一部分癌症。因此,临床实践已经转向对平均风险女性;现在有些人建议仅切除输卵管,而不是为了绝育或在良性妇科手术时进行输卵管结扎。这被称为机会性输卵管切除术,代表了通过预防输卵管发生的癌症来降低卵巢癌负担的一种手段。目前还没有详细的前瞻性报告估计机会性输卵管切除术降低卵巢癌风险的情况,无论是在基线人群风险的女性中,还是在有发展该病高风险的女性中。对于携带 BRCA 突变的女性来说,情况更为复杂-双侧输卵管卵巢切除术是降低风险的既定方法,单独的输卵管切除术并不是标准的治疗方法。基于现有数据,单独的输卵管切除术仅应保留给终生卵巢癌风险低于 5%的女性。