Comparative evaluation of King Vision videolaryngoscope channeled and non-channeled blades with direct laryngoscope for intubation performance and skill retention by medical students: a randomized cross over two period study
Authors' conclusion
KVC performed better in terms of time to intubation, success rate and ease of procedure as compared to KVNC and DL, both for acquisition and retention of skill.
Study context
- Population
- Medical students (novices) intubating a Laerdal Airway Management Trainer after standardized trainingcrossover
- Participants
- 100 students
- Comparison
- King Vision channeled vs non-channeled blade vs direct laryngoscope
Methodological detailsprospective, two-period crossover, manikin study
- Prospective
- Two-period crossover
- Manikin study
Primary result
As reported in the abstract
Intubation time
- Median intubation times of KingVision channeled (KVC) and direct laryngoscope (DL) comparable and significantly better than KingVision non-channeled (KVNC)
- P < 0.001
Further findings
Percentage of glottic opening (POGO) score
- Median POGO score better with both videolaryngoscope (VLs) vs DL
Ease of intubation · time '0'
- Significantly better with KVC vs KVNC and DL
- P < 0.0012
First-attempt success rate · time '0'
- Significantly better with KVC vs KVNC and DL
- P = 0.001
Skill retention (intubation parameters) · 1 month
- KVC fared better after one month as well
Original publication
Comparative evaluation of King Vision videolaryngoscope channeled and non-channeled blades with direct laryngoscope for intubation performance and skill retention by medical students: a randomized cross over two period study. J Clin Monit Comput. Published 18 November 2022. doi:10.
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