Upper lip bite test for prediction ofdifficult airway: A systematic review

ABSTRACT

Background and Objective: Upper lip bite test [ULBT] is one of the various bedside tests used for prediction of difficult laryngoscopic intubation. However, its usefulness is not still very clear, and there is controversy regarding its accuracy. The aim of this systematic review was to determine the accuracy of the ULBT for predicting difficult airway including difficult laryngoscopy or difficult tracheal intubation