A comparison of the Laryngopharyngeal Examination blade and the English Macintosh laryngoscope blade using an intubating manikin: a prospective randomized crossover study.

Background And Objective: To compare the new design laryngoscope blade, Laryngopharyngeal Examination blade, with the English Macintosh blade for examination of the laryngopharynx and placement of a nasogastric tube in the presence of a tracheal tube, time taken to insert the nasogastric tube and for tracheal intubation in an adult intubation manikin.

Methods: A prospective randomized and crossover trial with 81 anaesthetists of different expertise taking part in the study. Ease of laryngoscopy and tracheal intubation, examination of hypopharynx and time taken to insert the nasogastric tube were measured using the new design laryngoscope blade compared with the Macintosh blade in a manikin.