European journal of anaesthesiology
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Randomized Controlled Trial
Effect of head position on laryngeal visualisation with the McGrath MAC videolaryngoscope in paediatric patients: A randomised controlled trial.
The McGrath MAC video laryngoscope can improve visualisation of the glottis compared with the Macintosh direct laryngoscope. However, good visualisation of the glottis does not guarantee rapid or successful intubation because of difficulty in handling the McGrath device. ⋯ Visualisation of the glottis and handling of the McGrath MAC video laryngoscope were significantly better when the external auditory meatus and sternal notch were aligned in the horizontal plane.