Application of clip traction in endoscopic submucosal dissection to the treatment of early esophageal carcinoma and precancerous lesions.

Background and aim It is usually difficult to obtain a good view of the dissection plane during esophageal endoscopic submucosal dissection (ESD). Therefore, the aim of this study was to investigate the efficacy and safety of clip traction in ESD for the treatment of early esophageal carcinoma (EEC) or precancerous lesions.