REPORT ON THE SEVENTH NATIONAL SURVEY ON GASTROINTESTINAL ENDOSCOPY-RELATED ADVERSE EVENTS FOR THREE YEARS: FROM 2019 TO 2021

Abstract

From 2019 to 2021, we prospectively investigated gastrointestinal endoscopy-related adverse events during a week arbitrarily determined by each facility during the 3-year period. Moreover, we conducted a retrospective survey of serious adverse events in the past 3 years. Responses were obtained from 1,197 facilities for the 1-week prospective survey. Of 246,627 gastrointestinal endoscopies, the number of adverse events was 668 (0.271%), with eight fatal cases (0.0003%). Preparation-related adverse events were 177 (0.072%), 165 (0.076%) for observation-only gastrointestinal endoscopy, 325 (1.145%) for therapeutic gastrointestinal endoscopy, and one for laparoscopy (1.266%). There were four fatal cases associated with preparation and therapeutic gastrointestinal endoscopy, and the average age of the fatal cases was higher than that of cured cases. In retrospective studies, most cases with serious adverse events were elderly individuals.