Anesthésie et recherche clinique
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Analysis of the Learning Curve with the C-MAC Video Laryngoscope: A Manikin Study

Carol L Bradbury, Carl Hillermann, Cyprian Mendonca and Ratidzo Danha

Purpose: Video laryngoscopes improve the view of the larynx and may improve the speed and success rate of intubation. These benefits can only be realised when the operator has developed the ability to competently use the video laryngoscope. Establishing the learning curve of such devices is therefore important. In this study we investigated the learning curve of thirty experienced anaesthetists with the C-MAC video laryngoscope.

Methods: Five sequential manikin intubations were timed and compared to one with a standard Macintosh laryngoscope. Further manikin intubations with both laryngoscopes were timed, at two and twelve weeks.

Results: A short learning curve was observed during the five sequential intubations with the C-MAC laryngoscope with the intubation time remaining unchanged after the third attempt. When the study was repeated at two and twelve weeks, the intubation time had not changed.

Conclusion: The skill of intubating with the C-MAC video laryngoscope was retained for up to twelve weeks after an initial familiarisation by performing five intubations.