Statistical Analysis of Endoscopic Mass Screening for Gastric Cancer over 5 Years in Multiphasic Health Examination at Hospital Center

Abstract

 Based on the Cancer Control Act, Toyokawa-city, Aichi Prefecture is scheduled to apply endoscopy for the preventive mass screening examination for gastric cancer in the year of 2019. To prepare this schedule, we examined endoscopic gastric screening examinations performed as component of multiphasic health examination between October 2012 and December 2017. The total number of examinees was 3,482 (men 2,348, women 1,134). The age distribution of examinees was: 40-49 years (n=1,207), 50-59 years (n=1,085), 60-69 years (n=591), and 30-39 years (n=430). Examinees screened for gastric cancer are increasing annually. The overall rate of endoscopic examination was 16.3% during this period. The rate of transnasal endoscopy was 61.3%. The rapid urease test for the detection of Helicobacter pylori was performed in 20.0% of the examinees, among which 32.5% showed positive test. Six patients with gastric cancer were detected among the examinees. All patients showed early gastric cancer. Among these, 4 patients were treated endoscopically using ESD and 2 were surgically. H. pylori was positive in 2 patients. Nasal bleeding requiring treatment by an otolaryngologist occurred in 2 patients who underwent transnasal endoscopy. No severe complications occurred among the examinees.