Endoscopic Image-Based Prediction of Esophageal Stenosis after ESD Using Mucosal Defect Metrics.

Background: Stricture is a major adverse event following esophageal endoscopic submucosal dissection (ESD). Although postoperative esophageal stenosis after ESD is clearly associated with large mucosal defects, there are no quantitative criteria for the degree of the defect. We aimed to examine the predictive factors associated with the development of esophageal stenosis after ESD, and to explore quantitative indicators for predicting postoperative stenosis.