Body posture during simulated tracheal intubation: GlideScope(®) videolaryngoscopy vs Macintosh direct laryngoscopy for novices and experts

Anaesthesia
T GrundgeigerO Happel

Abstract

Tracheal intubation requires the anaesthetist to adopt an awkward body posture. To investigate how posture may be improved, we compared the effects of laryngoscopy technique (GlideScope(®) vs Macintosh blade) and experience (novices vs experts) on body posture angles and the Rapid Entire Body Assessment postural analysis score. Novices (25 medical students) and experts (26 anaesthetists) were video-recorded performing intubation in a manikin using both devices. The GlideScope resulted in smaller deflections for all analysed posture angles (all p values < 0.001) except the wrist compared with the Macintosh blade. Novices showed more trunk (p < 0.001) and neck (p = 0.002) flexion than experts. Using the GlideScope resulted in a lower Rapid Entire Body Assessment score compared with using the Macintosh blade (p < 0.001), indicating that the GlideScope resulted in body posture less likely to induce musculoskeletal injuries. From an ergonomic point of view, the GlideScope should be the preferred technique for laryngoscopy.

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Citations

Apr 21, 2016·British Journal of Anaesthesia·F E Kelly, T M Cook
Apr 4, 2018·Journal of Perioperative Practice·Lydia JonesFiona E Kelly
Apr 16, 2020·International Journal of Environmental Research and Public Health·Manuel Hita-GutiérrezÁngel-Jesús Callejón-Ferre
Feb 8, 2021·British Journal of Anaesthesia·Rex R D Marks
Jan 14, 2021·Indian Journal of Anaesthesia·A H ShruthiY R Chandrika
Apr 14, 2017·British Journal of Anaesthesia·T M Cook, F E Kelly

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