Journal Article10.1038/NRGASTRO.2012.136
Interval cancers after colonoscopy-insights and recommendations.
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TL;DR: A structured analysis of individual cases of interval cancer might help in the continuous monitoring of the quality of colonoscopy, and ultimately might reduce the number of interval CRCs.
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Abstract: Some studies have cast doubt on the effectiveness of colonoscopy at reducing the incidence and mortality of proximal colorectal cancer (CRC), as relatively high incidence rates of these cancers are found after colonoscopy—referred to as interval cancers. In this article, the current literature regarding the incidence of, and potential explanations for, interval CRCs is outlined. Piecing together the most common technical and biological explanations could provide important feedback for the medical community.
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Citations
Long-Term Colorectal-Cancer Incidence and Mortality after Lower Endoscopy
Reiko Nishihara,Kana Wu,Paul Lochhead,Teppei Morikawa,Xiaoyun Liao,Zhi Rong Qian,Kentaro Inamura,Sun A. Kim,Aya Kuchiba,Mai Yamauchi,Yu Imamura,Walter C. Willett,Bernard Rosner,Charles S. Fuchs,Edward Giovannucci,Shuji Ogino,Andrew T. Chan +16 more
TL;DR: Colorectal cancer diagnosed within 5 years after colonoscopy was more likely than cancer diagnosed after that period or without prior endoscopy to have CIMP and microsatellite instability and colonoscopic was also associated with a modest reduction in the incidence of proximal colon cancer.
Postcolonoscopy colorectal cancers are preventable: a population-based study
Chantal le Clercq,Mariëlle Bouwens,Eveline Rondagh,C Minke Bakker,Eric T.P. Keulen,Rogier de Ridder,Bjorn Winkens,Ad A.M. Masclee,Silvia Sanduleanu +8 more
TL;DR: Quality improvements in performance of colonoscopy, with special attention to the detection and resection of proximally located flat precursors, have the potential to prevent postcolonoscopy CRCs.
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Post-Colonoscopy Complications: A Systematic Review, Time Trends, and Meta-Analysis of Population-Based Studies.
Ankie Reumkens,Eveline Rondagh,C Minke Bakker,Bjorn Winkens,Ad A.M. Masclee,Silvia Sanduleanu +5 more
TL;DR: Worldwide, the post-colonoscopy complication rate remained stable or even declined over the past 15 years, whereas the perforation and mortality rates remained stable from 2001 to 2015.
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References
•Journal Article
Role of Colonoscopy and Polyp Characteristics in Colorectal Cancer After Colonoscopic Polyp Detection
TL;DR: Coloscopy-related factors are more important than polyp characteristics for stratification of colorectal cancer risk after colonoscopic polyp detection in the community setting.
•Journal Article
Protection From Colorectal Cancer After Colonoscopy
Hermann Brenner,Jenny Chang-Claude,Christoph M. Seiler,Alexander Rickert,Michael Hoffmeister +4 more
TL;DR: Colonoscopy with polypectomy can be associated with strongly reduced risk for CRC in the population setting, and strong risk reduction was observed for all cancer stages and all ages, except for right-sided cancer in persons aged 50 to 59 years.
Microsatellite Instability in Interval Colon Cancers
Mandeep S. Sawhney,Mandeep S. Sawhney,William D. Farrar,William D. Farrar,Srivani Gudiseva,Douglas B. Nelson,Douglas B. Nelson,Frank A. Lederle,Frank A. Lederle,Thomas S. Rector,John H. Bond,John H. Bond +11 more
TL;DR: Interval colon cancers were almost 4 times as likely as noninterval Colon cancers to be associated with mismatch repair gene dysfunction, and this association was strongest for tumors located in the distal colon.
Analysis of Colorectal Cancer Occurrence During Surveillance Colonoscopy in the Dietary Polyp Prevention Trial
Ajay Pabby,Robert E. Schoen,Joel L. Weissfeld,Randall W. Burt,James W. Kikendall,M. Peter Lance,Moshe Shike,Elaine Lanza,Arthur Schatzkin +8 more
TL;DR: Improved quality of colonoscopy may have reduced cancer prevalence or resulted in earlier cancer detection in over 50% of prevalent cancers in the dietary Polyp Prevention Trial.