Lowery Jan T, Ahnen Dennis J, Schroy Paul C, Hampel Heather, Baxter Nancy, Boland C Richard, Burt Randall W, Butterly Lynn, Doerr Megan, Doroshenk Mary, Feero W Gregory, Henrikson Nora, Ladabaum Uri, Lieberman David, McFarland Elizabeth G, Peterson Susan K, Raymond Martha, Samadder N Jewel, Syngal Sapna, Weber Thomas K, Zauber Ann G, Smith Robert
Colorado School of Public Health, Aurora, Colorado.
School of Medicine and Gastroenterology of the Rockies, University of Colorado, Boulder, Colorado.
Cancer. 2016 Sep 1;122(17):2633-45. doi: 10.1002/cncr.30080. Epub 2016 Jun 3.
Persons with a family history (FH) of colorectal cancer (CRC) or adenomas that are not due to known hereditary syndromes have an increased risk for CRC. An understanding of these risks, screening recommendations, and screening behaviors can inform strategies for reducing the CRC burden in these families. A comprehensive review of the literature published within the past 10 years has been performed to assess what is known about cancer risk, screening guidelines, adherence and barriers to screening, and effective interventions in persons with an FH of CRC and to identify FH tools used to identify these individuals and inform care. Existing data show that having 1 affected first-degree relative (FDR) increases the CRC risk 2-fold, and the risk increases with multiple affected FDRs and a younger age at diagnosis. There is variability in screening recommendations across consensus guidelines. Screening adherence is <50% and is lower in persons under the age of 50 years. A provider's recommendation, multiple affected relatives, and family encouragement facilitate screening; insufficient collection of FH, low knowledge of guidelines, and poor family communication are important barriers. Effective interventions incorporate strategies for overcoming barriers, but these have not been broadly tested in clinical settings. Four strategies for reducing CRC in persons with familial risk are suggested: 1) improving the collection and utilization of the FH of cancer, 2) establishing a consensus for screening guidelines by FH, 3) enhancing provider-patient knowledge of guidelines and communication about CRC risk, and 4) encouraging survivors to promote screening within their families and partnering with existing screening programs to expand their reach to high-risk groups. Cancer 2016. © 2016 American Cancer Society. Cancer 2016;122:2633-2645. © 2016 American Cancer Society.
有结直肠癌(CRC)或腺瘤家族史(FH)但非由已知遗传综合征引起的人群患CRC的风险增加。了解这些风险、筛查建议和筛查行为可为减轻这些家族的CRC负担提供策略依据。我们对过去10年发表的文献进行了全面综述,以评估关于CRC家族史人群的癌症风险、筛查指南、筛查依从性和障碍以及有效干预措施的已知情况,并确定用于识别这些个体并指导护理的FH工具。现有数据表明,有1名受影响的一级亲属(FDR)会使CRC风险增加2倍,且风险会随着多名受影响的FDR以及诊断时年龄较小而增加。不同的共识指南在筛查建议方面存在差异。筛查依从性低于50%,且在50岁以下人群中更低。医生的建议、多名受影响的亲属以及家庭鼓励有助于筛查;FH收集不足、对指南了解不足以及家庭沟通不畅是重要障碍。有效的干预措施纳入了克服障碍的策略,但这些措施尚未在临床环境中广泛测试。建议采取四种降低家族性风险人群CRC的策略:1)改善癌症FH的收集和利用;2)就FH筛查指南达成共识;3)增强医生和患者对指南的了解以及关于CRC风险的沟通;4)鼓励幸存者在其家庭中促进筛查,并与现有筛查项目合作,将其覆盖范围扩大到高危人群。癌症2016。©2016美国癌症协会。癌症2016;122:2633 - 2645。©2016美国癌症协会。