Colonoscopy

Several high-quality studies pertinent to colonoscopy were presented at Digestive Disease Week (DDW) 2014. The following review discusses studies that are considered to address some of the most burning questions in colonoscopy research: quality of colonoscopy and its measurement, surveillance intervals for adenomas, the treatment of diminutive adenomas, basic and advanced polypectomy techniques, and microbiome changes in relation to colonoscopy.

• References

• 1 Rex DK, Petrini JL, Baron TH et al. Quality indicators for colonoscopy. Am J Gastroenterol 2006; 101: 873-885
• 2 Valori R, Rey JF, Atkin WS et al. European guidelines for quality assurance in colorectal cancer screening and diagnosis. First edition – Quality assurance in endoscopy in colorectal cancer screening and diagnosis. Endoscopy 2012; 44: E88-105
• 3 Raju GS, Ross WA, Lum P et al. Natural language processing as an alternative to manual reporting of colonoscopy quality metrics. Gastrointest Endosc 2014; 79: AB116
• 4 Imler TD, Morea J, Kahi C et al. Natural language processing accurately categorizes findings from colonoscopy and pathology reports. Clin Gastroenterol Hepatol 2013; 11: 689-694
• 5 van Doorn SC, van Vliet J, Fockens P et al. A novel colonoscopy reporting system enabling quality assurance. Endoscopy 2014; 46: 181-187
• 6 Kaminski MF, Regula J, Kraszewska E et al. Quality indicators for colonoscopy and the risk of interval cancer. N Engl J Med 2010; 362: 1795-1803
• 7 Bressler B, Paszat LF, Chen Z et al. Rates of new or missed colorectal cancers after colonoscopy and their risk factors: a population-based analysis. Gastroenterology 2007; 132: 96-102
• 8 Corley DA, Jensen CD, Marks AR et al. Adenoma detection rate and risk of colorectal cancer and death. N Engl J Med 2014; 370: 1298-1306
• 9 Cheung K, Evison F, Patel P et al. How commonly is colorectal cancer later diagnosed following a colonoscopy that does not report colorectal cancer (an analysis of 11 years of national data in England)?. Gastrointest Endosc 2014; 79: AB117-118
• 10 Gavin DR, Valori RM, Anderson JT et al. The national colonoscopy audit: a nationwide assessment of the quality and safety of colonoscopy in the UK. Gut 2013; 62: 242-249
• 11 Hassan C, Quintero E, Dumonceau JM et al. Post-polypectomy colonoscopy surveillance: European Society of Gastrointestinal Endoscopy (ESGE) Guideline. Endoscopy 2013; 45: 842-64
• 12 Otake Y, Kakugawa Y, Matsumoto M et al. Incidence of advanced neoplasia in individuals with untreated diminutive adenomas: a longitudinal study. Gastrointest Endosc 2014; 79: AB126
• 13 Robertson DJ, Lieberman DA, Winawer SJ et al. Colorectal cancers soon after colonoscopy: a pooled multicohort analysis. Gut 2014; 63: 949-956
• 14 Steele RJ, Pox C, Kuipers EJ et al. European guidelines for quality assurance in colorectal cancer screening and diagnosis. First edition – Management of lesions detected in colorectal cancer screening. Endoscopy 2012; 44: E140-150
• 15 Tolliver KA, Rex DK. Colonoscopic polypectomy. Gastroenterol Clin North Am 2008; 37: 229-51, ix
• 16 Britto-Arias M, Waldmann E, Bannert C et al. Forceps versus snare polypectomies – low adherence to guideline results in incomplete resection. Gastrointest Endosc 2014; 79: AB129
• 17 Kim HS, Hwang HW, Park HJ et al. Cold snare versus hot snare polypectomy for the complete resection of 5–9 mm sized colorectal polyps: a randomized controlled trial. Gastrointest Endosc 2014; 79: AB401-402
• 18 Lee CK, Shim JJ, Jang JY. Cold snare polypectomy vs. cold forceps polypectomy using double-biopsy technique for removal of diminutive colorectal polyps: a prospective randomized study. Am J Gastroenterol 2013; 108: 1593-1600
• 19 Franklin Jr ME, Diaz EJ, Abrego D et al. Laparoscopic-assisted colonoscopic polypectomy: the Texas Endosurgery Institute experience. Dis Colon Rectum 2000; 43: 1246-1249
• 20 Buscaglia J, Lascarides CE, Nagula S et al. Laparoscopic-assisted colonoscopy with polypectomy (Lacp) versus laparoscopic hemicolectomy for endoscopically unresectable right-sided colon polyps: results of a randomized controlled trial. Gastrointest Endosc 2014; 79: AB160
• 21 Eckburg PB, Bik EM, Bernstein CN et al. Diversity of the human intestinal microbial flora. Science 2005; 308: 1635-8
• 22 Menees S, Higgins P, Korsnes S et al. Does colonoscopy cause increased ulcerative colitis symptoms?. Inflamm Bowel Dis 2007; 13: 12-18
• 23 Kim SB, Chuang P, Walsh E et al. Significant shifts of the microbiome after bowel preparation for colonoscopy are transient as demonstrated by longitudinal stool sampling and high-throughput sequencing. Gastroenterology 2014; 146 (Suppl. 01) 835