International journal of pediatric otorhinolaryngology
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Int. J. Pediatr. Otorhinolaryngol. · Jun 2021
Tracheal pressure generated by high-flow nasal cannula in 3D-Printed pediatric airway models.
Heated and humidified high flow nasal cannula (HFNC) is an increasingly used form of noninvasive respiratory support with the potential to generate significant tracheal pressure. The aim of this study was to quantify the pressure generated by HFNC within the trachea in anatomically correct, pediatric airway models. ⋯ HFNC was found to demonstrate a predictable flow-pressure relationship that achieved sufficient distending pressure to consider treatment of pediatric obstructive sleep apnea and tracheomalacia in the closed-mouth models tested.