Wang Rosy, Leong Rupert W
Rosy Wang, Rupert W Leong, Gastroenterology and Liver Services, Concord Hospital, Sydney, Concord NSW 2139, Australia.
World J Gastroenterol. 2014 Jul 21;20(27):8783-9. doi: 10.3748/wjg.v20.i27.8783.
To examine and evaluate recent evidence regarding the epidemiology, pathogenesis and management of colorectal cancer (CRC) development in inflammatory bowel disease (IBD)-primary sclerosing cholangitis (PSC) patients. Using the PubMed database, a literature search was conducted for relevant articles in English from the past 10 years. Relevant studies investigating PSC as a risk factor for CRC in IBD in the context of incidence and prevalence, pathogenesis, prevention and prognosis were included in this review. Recent evidence increasingly points to PSC as a significant risk factor in the development of CRC in patients with concomitant IBD. PSC may be an important risk factor for CRC in different populations worldwide. The mechanism for this increase in risk is still unclear. The efficacy of UDCA as a chemopreventive agent remains controversial. Liver transplantation does not halt the development of CRC, although there is not enough evidence to suggest that it is associated with increased incidence of CRC. While routine colonoscopic surveillance should be performed in patients with concurrent PSC and IBD, more high-level evidence is required to support the benefits of the procedure. While many new developments have taken place in the last decade, the pathogenesis and optimal management of CRC development in IBD-PSC patients remain unclear.
研究和评估有关炎症性肠病(IBD)-原发性硬化性胆管炎(PSC)患者结直肠癌(CRC)发生的流行病学、发病机制及管理的最新证据。利用PubMed数据库,对过去10年的英文相关文章进行文献检索。本综述纳入了在发病率、患病率、发病机制、预防及预后方面研究PSC作为IBD中CRC风险因素的相关研究。最新证据越来越多地表明,PSC是合并IBD患者发生CRC的一个重要风险因素。在全球不同人群中,PSC可能是CRC的一个重要风险因素。这种风险增加的机制仍不清楚。熊去氧胆酸作为一种化学预防剂的疗效仍存在争议。肝移植并不能阻止CRC的发生,尽管没有足够证据表明其与CRC发病率增加有关。虽然对于并发PSC和IBD的患者应进行常规结肠镜监测,但需要更多高级别证据来支持该检查的益处。尽管在过去十年中有许多新进展,但IBD-PSC患者CRC发生的发病机制及最佳管理仍不清楚。