Just this month in Journal of Anesthesia came out this mannikin study on novice intubators using King Vision VL vs Macintosh DL.
Here is the article
Comparison of intubation performance between the King Vision and Macintosh laryngoscopes in novice personnel: a randomized, crossover manikin study
Some interesting points to note:
- Success rates for intubation did not differ significantly for the channeled King Vision blade and Macintosh DL technique but the non channeled KV blade was worse for novice intubators in this study. This highlights issues of tube delivery with indirect laryngoscopes like the KV, Glidescope etc.
- Oesophageal intubations were only the problem with Macintosh DL. None occurred with the King Vision groups. Great safety point for novice intubators!
- For remote providers, say doctors, nurses or paramedics working in remote areas who will only very occasionally need to intubate, having a device like the King Vision is a reasonable option, especially in regard to avoiding oesophageal intubations.