Snare-based circumferential traction technique for endoscopic submucosal dissection of long circumferential early esophageal carcinoma

Although tunneling dissection is reported to be effective in facilitating endoscopic submucosal dissection (ESD) of esophageal circumferential lesions [1] [2] [3], endoscopists may lose visualization inside the narrow tunnel and it can be challenging to dissect the ridges between the tunnels [4] [5]. Herein, we propose a snare-based circumferential traction technique to improve the long circumferential ESD of early esophageal cancer ([Video 1]).