Publication details

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

Authors

VOTRUBA Jiri BROŽEK Tomáš BLAHA Jan HENLIN Tomas VYMAZAL Tomáš DONALDSON Will MICHÁLEK Pavel

Year of publication 2020
Type Article in Periodical
Magazine / Source Diagnostics
MU Faculty or unit

Faculty of Medicine

Citation
Web https://www.mdpi.com/2075-4418/10/3/139
Doi http://dx.doi.org/10.3390/diagnostics10030139
Keywords videolaryngoscopy; King Vision (TM) laryngoscope; channeled blade; non-channeled blade; cervical spine injury
Description 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 (TM) 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 (TM) videolaryngoscope are reliable intubation devices in a simulated cervical spine injury in a manikin model when inserted by non-experienced operators. The channeled blade allowed faster intubation of the trachea.

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