Laryngoscope brightness determined by visual inspection and during mannequin laryngoscopy
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To the Editor,
Adequate light intensity is crucial for visualization during laryngoscopy. This can be problematic as light intensity of laryngoscope blades deteriorates with repeated use and cleaning.1 Typically, laryngoscope function is checked by simple visual assessment of blade light brightness prior to induction. While the Canadian Guidelines to the Practice of Anesthesia stipulate that laryngoscopes must be checked prior to use, they do not specify a method.2 The aim of this present study was to compare the adequacy of laryngoscope blade light brightness, as perceived by simple visual inspection, with the adequacy of illumination during direct laryngoscopy performed on a mannequin.
Conflicts of interest
This submission was handled by Dr. Steven Backman, Associate Editor, Canadian Journal of Anesthesia.
This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
- 5.International Organization for Standardization. ISO 7376-2009: Anesthetic and Respiratory Equipment. Laryngoscopes for Tracheal intubation. Available from URL: https://www.iso.org/standard/44073.html (accessed July 2018).