Effects of direct laryngoscopy versus Glidescope videolaryngoscopy on subjective and objective measures of cognitive workload: an in-vivo randomized trial

Abstract

A videolaryngoscope with hyperangluated blade used in a real clinical scenario of elective surgery significantly reduced both subjective and objective workload compared to a direct laryngoscope. Physical demand and effort were the key components in reducing operators' mental workload. Therefore, the expert use of a videolaryngoscope with hyperangulated blade constitutes an ergonomic option that could limit operators' workload and improve patients' safety and operators' well-being.