EVOLUTION OF ULTRA-THIN TRANSNASAL ENDOSCOPY AND ITS APPLICATION IN GASTRIC CANCER AFTER HELICOBACTER PYLORI ERADICATION

Abstract

Recently, the ingenuity of endoscope manufacturers has resulted in high-definition ultra-thin transnasal endoscopes. Images equivalent to those obtained with standard-diameter endoscopes can now be obtained. Additionally, various combined enhanced observations are possible. It could be beneficial for gastric cancer screening in an aging society because it causes less pain during examination, has high patient satisfaction, and has a lesser impact on cardiopulmonary function than the standard endoscopes do. Post-Helicobacter pylori eradication gastric cancer accounts for the majority of cases of gastric cancer and are difficult to diagnose endoscopically due to the endoscopic features. Patients with long-term post-eradication gastric cancer have an increased risk of developing undifferentiated gastric cancer. Endoscopic findings associated with gastric cancer risk include a change from mucosal atrophy to intestinal metaplasia. We hope that ultra-thin transnasal endoscopy will contribute to screening for gastric cancer.