Pharyngeal observation via transoral endoscopy using a lip cover-type mouthpiece.
Taro IwatsuboRyu IshiharaKentaro NakagawaMasayasu OhmoriHiroyoshi IwagamiKenshi MatsunoShuntaro InoueHiroko NakahiraNoriko MatsuuraSatoki ShichijoAkira MaekawaTakashi KanesakaSachiko YamamotoYoji TakeuchiKoji HigashinoNoriya UedoKazuhide HiguchiPublished in: Journal of gastroenterology and hepatology (2019)
The Valsalva maneuver using transoral endoscopy with a lip cover-type mouthpiece is feasible for the visualization of the postcricoid area and the posterior wall of the hypopharynx. Particularly, this technique would contribute to early detection of head and neck cancers.