Abstract
Background : To reduce the number of missed gastric tumor lesions during endoscopy, we examined patients with multiple lesions and patients with missed lesions.
Subjects and methods : The subjects were patients with gastric tumor lesions who underwent endoscopic submucosal dissection at our hospital from May 2013 to June 2015.
Results : Of the 27 enrolled patients, 15 had solitary gastric tumor lesion (solitary group) and 12 had multiple gastric tumor lesions (multiple group) . Patients in the multiple group showed more severe atrophy of the background gastric mucosa than patients in the solitary group (p＜0.001, Mann-Whitney U test) .Of the 11 enrolled patients in multiple group, 6 had no missed gastric tumor lesion (detected group) and 5 had missed gastric tumor lesion (undetected group) during the first endoscopy. The use of chromoendoscopy was more frequent in the detected group than in the undetected group (p＝0.015, Fisher’s exact test) .
Conclusion : In patients with severe gastric atrophy and one gastric tumor lesion, we should use chromoendoscopy during endoscopy.
