J Korean Soc Emerg Med.  2016 Jun;27(3):246-253. 10.0000/jksem.2016.27.3.246.

Comparison of the GlideRite to the Conventional-malleable-stylet for Endotracheal Intubation by the Macintosh-laryngoscope: A Simulation Study Using Manekins

• Kong YT
• Lee HJ
• Na JU
• Shin DH
• Han SK
• Lee JH
• Choi PC

• KMID: 2320788
• DOI: http://doi.org/10.0000/jksem.2016.27.3.246

Abstract

PURPOSE
The purpose of this study is to compare the effectiveness of the GlideRite with the conventional-malleable-stylet (CMS) in endotracheal intubation (ETI) using the Macintosh-laryngoscope.
METHODS
This study is a randomized crossover simulation study. Participants performed ETI using both the GlideRite and the CMS in the normal airway and in a tongue edema (simulated difficult airway resulting in lower percentage of glottis opening [POGO]) model.
RESULTS
In both the normal and the tongue edema models, all 36 participants performed ETI successfully using the two stylets on the first attempt. In the normal airway model, there was no difference in time required for ETI (T(ETI)) or ease of handling between the two stylets. In the tongue edema model, the T(ETI) increased as POGO score decreased with the CMS (POGO score showing negative correlation with T(ETI) for the CMS, Spearman's rho=-0.518, p=0.001) but not for the GlideRite (rho=-0.208, p=0.224). The T(ETI) was shorter with the GlideRite than the CMS, but without statistical significance (15.1 vs. 18.8 seconds, p=0.385). Ease of handling was superior with the GlideRite compared to the CMS (p=0.006).
CONCLUSION
Performance of the GlideRite and the CMS was not different in the normal airway model. However, in the simulated difficult airway model with a low POGO score, the GlideRite performed better than the CMS for direct laryngoscopic intubation.

Keyword

Instrumentation; Intubation intratracheal; Manekins

MeSH Terms

Edema
Glottis
Intubation
Intubation, Intratracheal*
Tongue