Comparison of GlideScope® versus Macintosh laryngoscope for the removal of a hypopharyngeal foreign body: A randomized cross-over cadaver study

Abstract Objective This study aimed to evaluate whether GlideScope ® is an effective and acceptable method for the removal of a hypopharyngeal foreign body. Methods This was a prospective study conducted in 28 first year emergency residents with little prior airway management experience. Participants extracted hypopharyngeal foreign bodies using a Macintosh laryngoscope and GlideScope ® with Magill and Sponge forceps. The primary endpoints were extraction time and success rate with each device. Participant preferences were also assessed. Results The cumulative success rate in relation to time to extraction was significantly higher with the Macintosh laryngoscope than with the GlideScope ® ( p ® with Magill forceps ( p  =  p  =  ® was significantly lower when using Magill (median 46 s, IQR 28–75 s) forceps than Sponge forceps (median 79 s, IQR 41–88 s). Conclusions In this cadaver model, the Macintosh laryngoscope appeared to be more efficient and preferred than GlideScope ® for extracting hypopharyngeal airway foreign bodies that are associated with fatal asphyxiation.