Comparison of five video-assisted intubation devices by novice and expert laryngoscopists for use in the aeromedical evacuation environment

Matthew C. Wallace; SSgt Tyler Britton; Robbie Meek; Sharon Walsh-Hart; Col Todd E. Carter; Steven J. Lisco

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Comparison of five video-assisted intubation devices by novice and expert laryngoscopists for use in the aeromedical evacuation environment

RESEARCH | Updated：2022-12-27

- Comparison of five video-assisted intubation devices by novice and expert laryngoscopists for use in the aeromedical evacuation environment
- Comparison of five video-assisted intubation devices by novice and expert laryngoscopists for use in the aeromedical evacuation environment
- MMR 2017年4卷第2期页码：61-69
- Affiliations：
  
  University of Cincinnati Medical Center, Department of Anesthesiology, 231 Albert Sabin Way, P.O. Box 670531, Cincinnati, OH 45267-0351, USA
- Author bio：
  
  *: wallacm4@ucmail.uc.edu
- Funds：
- DOI：
  中图分类号：
- 纸质出版：2017-06
- Accepted：
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Comparison of five video-assisted intubation devices by novice and expert laryngoscopists for use in the aeromedical evacuation environment[J]. MMR, 2017,4(2):61-69.

Matthew C. Wallace, SSgt Tyler Britton, Robbie Meek, et al. Comparison of five video-assisted intubation devices by novice and expert laryngoscopists for use in the aeromedical evacuation environment[J]. Military Medical Research, 2017, 4(2): 61-69.
Comparison of five video-assisted intubation devices by novice and expert laryngoscopists for use in the aeromedical evacuation environment[J]. MMR, 2017,4(2):61-69. DOI：

Matthew C. Wallace, SSgt Tyler Britton, Robbie Meek, et al. Comparison of five video-assisted intubation devices by novice and expert laryngoscopists for use in the aeromedical evacuation environment[J]. Military Medical Research, 2017, 4(2): 61-69. DOI：

摘要

Abstract

Background:

The critically ill or injured patient undergoing military medical evacuation may require emergent intubation. Intubation may be life-saving

but it carries risks.The novice or infrequent laryngoscopist has a distinct disadvantage because experience is critical for the rapid and safe establishment of a secured airway. This challenge is compounded by the austere environment of the back of an aircraft under blackout conditions. This study determined which of five different video-assisted intubation devices (VAIDs) was best suited for in-flight use by U.S. Air Force Critical Care Air Transport Teams by comparing time to successful intubation between novice and expert laryngoscopists under three conditions

Normal Airway Lights on (NAL)

Difficult Airway Lights on (DAL) and Difficult Airway Blackout (DAB)

using manikins on a standard military transport stanchion and the floor with a minimal amount of setup time and extraneous light emission.

Methods:

A convenience sample size of 40 participants (24 novices and 16 experts) attempted intubation with each of the 5 different video laryngoscopic devices on high-fidelity airway manikins. Time to tracheal intubation and number of optimization maneuvers used were recorded. Kruskal-Wallis testing determined significant differences between the VAIDs in time to intubation for each particular scenario. Devices with significant differences underwent pair-wise comparison testing using rank-sum analysis to further clarify the difference. Device assembly times

startup times and the amount of light emitted were recorded. Perceived ease of use was surveyed.

Results:

Novices were fastest with the Pentax AWS in all difficult airway scenarios. Experts recorded the shortest median times consistently using 3 of the 5 devices. The AWS was superior overall in 4 of the 6 scenarios tested. Experts and novices subjectively judged the GlideScope Ranger as easiest to use. The light emitted by all the devices was less than the USAF-issued headlamp.

Conclusion:

Novices intubated fastest with the Pentax AWS in all difficult airway scenarios. The GlideScope required the shortest setup time

and participants judged this device as the easiest to use. The GlideScope and AWS exhibited the two fastest total setup times. Both devices are suitable for in-flight use by infrequent and seasoned laryngoscopists. Trial registration: not applicable.

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references

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