More efficient endoscopic submucosal dissection with deep endotracheal intubation for superficial cervical esophageal carcinoma: a dual-center, prospective, randomized controlled study
Deep endotracheal intubation (DET) has been proposed to improve cervical esophageal endoscopic submucosal dissection (ESD) because of the limited space and visibility. We aimed to evaluate the efficacy and safety of DET.