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J Clin Anesth. 2012 Aug;24(5):412-4. doi: 10.1016/j.jclinane.2011.11.009. Epub 2012 May 31.

The GlideScope for videolaryngoscopy-assisted nasotracheal-to-orotracheal tube exchange in the intensive care unit in a patient with a known difficult airway.

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Department of Anesthesiology, University of Wisconsin School of Medicine and Public Health, Madison, WI 53597, USA.


A 77 year old, nasally intubated man with a history of repeated episodes of airway obstruction requiring intubation due to recurrent laryngitis and a hypopharyngeal mass, needed nasotracheal-to-orotracheal tube exchange. The GlideScope videolaryngoscope was inserted, achieving a full view of the glottic inlet with the nasotracheal tube in situ. An endotracheal tube (ETT) loaded on a GlideRite Rigid Stylet was advanced through the oropharynx into view. Advancement of this ETT to the glottic opening was tested and achieved. With both tracheal tubes in view, the nasotracheal tube cuff was deflated and withdrawn from the glottic opening. While maintaining videoscopic visualization, the orotracheal tube was advanced through the vocal cords into the trachea. The benefits of this technique versus existing alternatives are discussed.

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