Anonymous User
Login / Registration

Gastroenterologie
a hepatologie

Gastroenterology and Hepatology

Gastroent Hepatol 2015; 69(5): 424–428. doi:10.14735/amgh2015424.

Endoscopic histologisation of diminutive colorectal polyps. Are we ready for a change?

Robert Procházka Orcid.org  1, Josef Pícha1, Helena Laurinová1

+ Affiliation

Summary

Digital chromoendoscopy used with validated classification scales allows endoscopists to predict colorectal polyp histology in vivo with a high degree of precision. The knowledge of the polyp histology without the need for biopsy offers endoscopists new strategies such as “resect and discard” and “observe and leave”. Although these strategies transfer the responsibility for correct diagnosis from the pathologist to the endoscopist, they allow us to rationalise the prevention of colorectal cancer. The authors summarise the arguments for accepting these new strategies and specify the requirements for their implementation into daily endoscopic practice. The cited international studies are complemented with data from our institution.

Keywords

narrow band imaging, NICE, adenoma, chromoendoscopy, diminutive, polyps

To read this article in full, please register for free on this website.

Benefits for subscribers

Benefits for logged users

Literature

1. Gupta N, Bansal A, Rao D et al. Prevalence of advanced histological features in diminutive and small colon polyps. Gastrointest Endosc 2012; 75 (5): 1022–1030. doi: 10.1016/j.gie.2012.01.020.
2. Costantini M, Sciallero S, Giannini A et al. Interobserver agreement in the histologic diagnosis of colorectal polyps. The experience of the multicenter adenoma colorectal study (SMAC). J Clin Epidemiol 2003; 56 (3): 209–214.
3. East JE, Suzuki N, Saunders BP. Comparison of magnified pit pattern interpretation with narrow band imaging versus chromoendoscopy for diminutive colonic polyps: a pilot study. Gastrointest Endosc 2007; 66 (2): 310–316.
4. Rastogi A, Bansal A, Wani S et al. Narrow-band imaging colonoscopy – a pilot feasibility study for the detection of polyps and correlation of surface patterns with polyp histologic diagnosis. Gastrointest Endosc 2008; 67 (2): 280–286.
5. Sano Y, Ikematsu H, Fu KI et al. Meshed capillary vessels by use of narrow-band imaging for differential diagnosis of small colorectal polyps. Gastrointest Endosc 2009; 69 (2): 278–283. doi: 10.1016/j.gie.2008.04.066.
6. Hewett DG, Kaltenbach T, Sano Y et al. Validation of a simple classification system for endoscopic diagnosis of small colorectal polyps using narrow-band imaging. Gastroenterology 2012; 143 (3): 599–607. doi: 10.1053/j.gastro.2012.05.006.
7. Hyashi N, Tanaka S, Hewett DG et al. Endoscopic prediction of deep submucosal invasive carcinoma: validation of the narrow-band imaging international colorectal endoscopic (NICE) classification. Gastrointest Endosc 2013; 78 (4): 625–632. doi: 10.1016/j.gie.2013.04.185.
8. McGill SK, Evangelou E, Iannidis JP et al. Narrow band imaging to differentiate neoplastic and non-neoplastic colorectal polyps in real time: a meta-analysis of diagnostic operating characteristics. Gut 2013; 62 (12): 1704–1713. doi: 10.1136/gutjnl-2012-303965.
9. ASGE Technology Committee, Abu Dayyeh BK, Thosani N et al. ASGE Technology Committee systematic review and meta-analysis assessing the ASGE PIVI thresholds for adopting real-time endoscopic assessment of the histology of diminutive colorectal polyps. Gastrointest Endoscopy 2015; 81 (3): doi: 10.1016/j.gie.2014.12.022.
10. Rex DK, Kahi C, O’Brien M et al. The American Society for Gastrointestinal Endoscopy PIVI (Preservation and Incorporation of Valuable Endoscopic Innovations) on real-time endoscopic assessment of the histology of diminutive colorectal polyps. Gastrointest Endosc 2011; 73 (3): 419–422. doi: 10.1016/j.gie.2011.01.023.
11. Kamińsky MF, Hassan C, Bisschops R et al. Advanced imaging for detection and differentiation of colorectal neoplasia: European Society of Gastrointestinal Endoscopy (ESGE) Guideline. Endoscopy 2014; 46 (5): 435–449. doi: 10.1055/s-0034-1365348.
12. Raghavendra M, Hewett DG, Rex DK. Differentiating adenomas from hyperplastic colorectal polyps: narrow-band imaging can be learned in 20 minutes. Gastrointest Endosc 2010; 72 (3): 572–576. doi: 10.1016/j.gie.2010.03.1124.
13. Ignjatovic A, Thomas-Gibson S, East JE et al. Development and validation of small adenomas from hyperplastic colorectal polyps. Gastrointest Endosc 2011; 73 (1): 128–133. doi: 10.1016/j.gie.2010.09.021.
14. Rastogi A, Rao DS, Gupta N et al. Impact of a computer-based teaching module on characterization of diminutive colon polyps by using narrow-band imaging by non-experts in academic and community practice: a video-based study. Gastrointest Endosc 2014; 79 (3): 390–398. doi: 10.1016/j.gie.2013.07.032.
15. Ladabaum U, Fioritto A, Mitani A et al. Real-time optical biopsy of colon polyps with narrow band imaging in community practice does not yet meet key thresholds for clinical decisions. Gastroenterology 2013; 144 (1): 81–91. doi: 10.1053/j.gastro.2012.09.054.
16. Hazewinkel Y, López-Cerón M, East JE et al. Endoscopic features of sessile serrated adenomas: validation by international experts using high-resolution white-light endoscopy and narrow-band imaging. Gastrointest Endosc 2013; 77 (6): 916–924. doi: 10.1016/j.gie.2012.12.018.

Credited self-teaching test