Airway management: High flow nasal oxygenation
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Emergency and difficult tracheal intubation can be associated with a high incidence of airway trauma due to multiple attempts at laryngoscopy; hypoxia, carbon dioxide retention due to sedation and procedural complications resulting in a cannot intubate cannot ventilate like situation.Awake fiber-optic intubation is a standard technique for anticipated difficult tracheal intubation but may still be accompanied by desaturation. Multiple attempts and dwindling saturation levels lead to panic situation during an unsafe apneic period.We present a case in which high flow nasal cannula (HFNC) was used to increase the safe apneic period while securing the airway with an awake fiberoptic bronchoscope (FOB). Coronary artery bypass grafting, repair of the left ventricular aneurysm, and removal of the left ventricular clot was performed on a 72-year-old male, with body surface area of 1.5 m2 and left ventricular ejection fraction of 20%....

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5070348/
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