Video Laryngoscopic Intubation Using the King VisionTM Laryngoscope in a Simulated Cervical Spine Trauma: A Comparison Between Non-Channeled and Channeled Disposable Blades

Diagnostics
Jiri VotrubaPavel Michalek

Abstract

Videolaryngoscopes may reduce cervical spine movement during tracheal intubation in patients with neck trauma. This manikin study aimed to compare the performance of disposable non-channeled and channeled blades of the King Vision™ videolaryngoscope in simulated cervical spine injury. Fifty-eight anesthesiologists in training intubated the TruMan manikin with the neck immobilized using each blade in a randomized order. The primary outcome was the time needed for tracheal intubation, secondary aims included total success rate, the time required for visualization of the larynx, number of attempts, view of the vocal cords, and subjective assessment of both methods. Intubation time with the channeled blade was shorter, with a median time of 13 s (IQR 9-19) vs. 23 s (14.5-37.5), p < 0.001, while times to visualization of the larynx were similar in both groups (p = 0.54). Success rates were similar in both groups, but intubation with the non-channeled blade required more attempts (1.52 vs. 1.05; p < 0.001). The participants scored the intubation features of the channeled blade significantly higher, while visualization features were scored similarly in both groups. Both blades of the King Vision™ videolaryngoscope are reliable intubat...Continue Reading

References

Nov 1, 1984·Anaesthesia·R S Cormack, J Lehane
Oct 1, 1998·Academic Emergency Medicine : Official Journal of the Society for Academic Emergency Medicine·R M LevitanJ E Hollander
Jan 29, 2013·The Journal of Emergency Medicine·Clemens KillHinnerk Wulf
Jan 10, 2014·Prehospital Emergency Care : Official Journal of the National Association of EMS Physicians and the National Association of State EMS Directors·Aaron M BurnettJoshua G Salzman
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Apr 25, 2015·Prehospital Emergency Care : Official Journal of the National Association of EMS Physicians and the National Association of State EMS Directors·Jeffrey L JarvisDanny Johns

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Citations

Jul 4, 2020·Anesthesia and Analgesia·Thomas M Hemmerling, Cedrick Zaouter
Sep 15, 2020·Anesthesia and Analgesia·Thomas M Hemmerling, Cedrick Zaouter

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