Inter-observer variability on the value of endoscopic images for the documentation of upper gastrointestinal endoscopy - our center experience

Abstract

Abstract Objective: Endoscopy is an essential and invaluable diagnostic tool in the arsenal of every gastroenterologist. ESGE presented additional guidelines for standardized image documentation in upper and lower gastrointestinal endoscopy. Clinical disagreement is a common challenge in most, if not all, fields of medicine. Settling disagreements is important so as to find ways to minimize it. Clinical disagreement in gastroscopy may be demonstrated by studying the observer variability. Methods: We retrospectively recruited 120 random patients that underwent conventional upper gastrointestinal endoscopy between 2021-2022 in our Department of Gastroenterology, all of them performed by one endoscopist. As part of the study, all video-endoscopic recordings were stored using one internal server. In order to study interobserver variability, four physicians (endoscopists and gastroenterologist specialists) were invited to complete the questionnaire. Results: The interob-server variability in our study ranged from moderate to very good in the assessment of the esophagus, with the highest degree of agreement in response to questions concerning characteristic findings such as normal mucosa, esophagitis Class A Los Angeles, hiatal hernia for the esophagus endoscopic evaluation, benign ulcer niche in gastric antrum, normal gastric corpus mucosa, intestinal metaplasia and angiodysplasia in gastric corpus. The question on atrophic mucosa in the first and second part of the duodenum was the most difficult to agree upon. Conclusion: The present study found that the variability between observers in the assessment of images obtained from patients that underwent conventional upper gastrointestinal endoscopy in our center was acceptably good.