Prospective Study
Copyright ©The Author(s) 2016. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastrointest Endosc. Apr 25, 2016; 8(8): 357-361
Published online Apr 25, 2016. doi: 10.4253/wjge.v8.i8.357
Application of the Prague C and M criteria for endoscopic description of columnar-lined esophagus in South Korea
Jung Wan Choe, Young Choon Kim, Moon Kyung Joo, Hyo Jung Kim, Beom Jae Lee, Ji Hoon Kim, Jong Eun Yeon, Jong-Jae Park, Jae Seon Kim, Kwan Soo Byun, Young-Tae Bak
Jung Wan Choe, Young Choon Kim, Moon Kyung Joo, Hyo Jung Kim, Beom Jae Lee, Ji Hoon Kim, Jong Eun Yeon, Jong-Jae Park, Jae Seon Kim, Kwan Soo Byun, Young-Tae Bak, Department of Gastroenterology, Korea University Guro Hospital, Seoul 08308, South Korea
Author contributions: Choe JW and Kim YC worked in data interpretation, and writing this manuscript; Bak YT worked in data acquisition, data analysis, data interpretation and in writing of this manuscript; all authors read and approved the final form of the manuscript.
Institutional review board statement: The study was reviewed and approved by the institutional review boards of Korea University Guro Hospital in South Korea.
Clinical trial registration statement: Although this research is a prospective study, there is no need to register clinical trial. This study only analyzed the results of endoscopic features, not evaluated or compare the clinical outcome. So, we are so sorry not to provide the trial’s registry.
Informed consent statement: All study participants, or their legal guardian, provided written consent prior to study enrollment.
Conflict-of-interest statement: The authors of this manuscript having no conflicts of interest to disclose.
Data sharing statement: No additional data are available.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Correspondence to: Young-Tae Bak, MD, Department of Gastroenterology, Korea University Guro Hospital, 148 Gurodong-ro, Guro-gu, Seoul 08308, South Korea. drbakyt@korea.ac.kr
Telephone: +82-2-26261778 Fax: +82-504-3666381
Received: July 7, 2015
Peer-review started: July 8, 2015
First decision: September 8, 2015
Revised: September 30, 2015
Accepted: December 1, 2015
Article in press: December 2, 2015
Published online: April 25, 2016
Processing time: 283 Days and 1.8 Hours
Abstract

AIM: To ascertain whether the Prague circumferential (C) length and maximal (M) length criteria for grading the extent of Barrett’s esophagus can be applied prior to its widespread application in South Korea.

METHODS: Two hundred and thirteen consecutive cases with endoscopic columnar-lined esophagus (CLE) were included and classified according to the Prague C and M criteria.

RESULTS: Of 213 cases with CLE, the distribution of maximum CLE lengths was: 0.5-0.9 cm in 99 cases (46.5%); 1.0-1.4 cm in 63 cases (29.6%); 1.5-1.9 cm in 15 cases (7.0%); 2.0-2.4 cm in 14 cases (6.6%); 2.5-2.9 cm in 1 case (0.5%); and 7.0 cm in 1 case (0.5%). Twenty cases (9.4%) had columnar islands alone. Two hundred and eight cases (97.7%) lacked the circumferential CLE component (C0Mx). Columnar islands were found in 70 cases (32.9%), of which 20 cases (9.4%) had columnar islands alone.

CONCLUSION: In regions where most CLE patients display short or ultrashort tongue-like appearance, more detailed descriptions of CLE’s in < 1.0 cm lengths and columnar islands, as well as avoidance of repeating the prefix “C0” need to be considered in parallel with the widespread application of the Prague system in South Korea.

Keywords: Barrett’s esophagus; Endoscopy; Columnar-lined esophagus; Prague criteria

Core tip: This was a prospective study to assess the feasibility of the Prague circumferential length and maximal length criteria for the endoscopic description of columnar-lined esophagus in South Korea. In regions like South Korea where the prevalence and endoscopic features of this condition are quite different from the West, we suggest possible modifications that may fit the characteristics of the South Korean source population more properly.