Performance of the C-MAC video laryngoscope in patients after a limited glottic view using Macintosh laryngoscopy

Anaesthesia. 2011 Dec;66(12):1101-5. doi: 10.1111/j.1365-2044.2011.06872.x. Epub 2011 Aug 25.


We applied the C-MAC videolaryngoscope in 52 consecutive patients who were found to have an unexpected Cormack and Lehane grade-3 (n = 49) and grade-4 (n = 3) laryngeal view with the Macintosh laryngoscope. The glottic view improved in 49 (94%) patients using the C-MAC. Tracheal intubation was successful in 49 of 52 patients (94%). In one patient, tracheal intubation failed using the C-MAC despite the presence of a Cormack and Lehane grade-2. These results suggest that the C-MAC videolaryngoscope has a role as a rescue device in cases of an initially difficult laryngeal view.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Female
  • Humans
  • Intubation, Intratracheal
  • Laryngoscopes*
  • Laryngoscopy
  • Male
  • Middle Aged
  • Video Recording