Deeper endotracheal intubation offers generous views for endoscopic submucosal dissection of cervical esophageal carcinoma.

The efficacy and safety of endoscopic submucosal dissection (ESD) for treating cervical esophageal carcinoma (CEC) are well recognized [1] [2]. However, performing ESD in the cervical esophagus remains challenging due to upper sphincter contraction and endotracheal intubation balloon compression. Herein, a deeper endotracheal intubation was applied to tackle this technical difficulty.