Angular change in the line of vision to the larynx: implications for determining the laryngoscopic view

Seongjoo Park, Jongryeol Jeong, Sukwon Cha, Sunghee Han, Jinhee Kim

Abstract
Background: We measured the angular change from the line of vision to the larynx around the upper incisors under defined laryngoscopic forces and investigated its association with the laryngoscopic view.