Endoscopic Experience Improves Interobserver Agreement in the Grading of Esophagitis by Los Angeles Classification: Conventional Endoscopy and Optimal Band Image System

Title
Endoscopic Experience Improves Interobserver Agreement in the Grading of Esophagitis by Los Angeles Classification: Conventional Endoscopy and Optimal Band Image System
Author(s)
이시형장병익김경옥전성우[전성우]권중구[권중구]김은영[김은영]정진태[정진태]박경식[박경식]조광범[조광범]김은수[김은수]
Keywords
COMPUTED VIRTUAL CHROMOENDOSCOPY; INTRAOBSERVER; CONSISTENCY; COLONOSCOPY
Issue Date
201403
Publisher
EDITORIAL OFFICE GUT & LIVER
Citation
GUT AND LIVER, v.8, no.2, pp.154 - 159
Abstract
Background/Aims: Interobserver variation by experience was documented for the diagnosis of esophagitis using the Los Angeles classification. The aim of this study was to evaluate whether interobserver agreement can be improved by higher levels of endoscopic experience in the diagnosis of erosive esophagitis. Methods: Endoscopic images of 51 patients with gastroesophageal reflux disease (GERD) symptoms were obtained with conventional endoscopy and optimal band imaging (OBI). Endoscopists were divided into an expert group (16 gastroenterologic endoscopic specialists guaranteed by the Korean Society of Gastrointestinal Endoscopy) and a trainee group (individuals with fellowships, first year of specialty training in gastroenterology). All endoscopists had no or minimal experience with OBI. GERD was diagnosed using the Los Angeles classification with or without OBI. Results: The mean weighted paired kappa statistics for interobserver agreement in grading erosive esophagitis by conventional endoscopy in the expert group was better than that in the trainee group (0.51 vs 0.42, p<0.05). The mean weighted paired k statistics in the expert group and in the trainee group based on conventional endoscopy with OBI did not differ (0.42, 0.42). Conclusions: Interobserver agreement in the expert group using conventional endoscopy was better than that in the trainee group. Endoscopic experience can improve the interobserver agreement in the grading of esophagitis using the Los Angeles classification.
URI
http://hdl.handle.net/YU.REPOSITORY/32892http://dx.doi.org/10.5009/gn1.2014.8.2.154
ISSN
1976-2283
Appears in Collections:
의과대학 > 내과학교실 > Articles
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