Evaluation of a humidified nasal high-flow oxygen system, using oxygraphy, capnography and measurement of upper airway pressures

• Published in: Anaesthesia and intensive care Vol. 39; no. 6; pp. 1103 - 1110
• Main Authors: RITCHIE, J. E, WILLIAMS, A. B, GERARD, C, HOCKEY, H
• Format: Journal Article
• Language: English
• Published: Edgecliff Anaesthesia Society of Anaesthetists 01.11.2011; Sage Publications Ltd. (UK); Sage Publications Ltd
• Subjects: Air Pressure; Airway Management - instrumentation; Algorithms; Anesthesia; Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy; Biological and medical sciences; Capnography; Catheters; Continuous Positive Airway Pressure; Exercise - physiology; Female; Health aspects; Heart Rate - physiology; Humans; Male; Maximal Expiratory Flow Rate; Measurement; Medical sciences; Nasal Cavity - physiology; Oximetry; Oxygen - blood; Oxygen equipment (Medical care); Oxygen Inhalation Therapy - instrumentation; Pharynx - physiology; Positive-Pressure Respiration; Respiratory Rate - physiology; Young Adult; New Zealand; Oxygen; CPAP; Positive pressure; Capnography; PEEP; Anesthesia; Humidification; Pressure measurement; oxygen inhalation therapy; nasal high flow; Inhalation

In this study, we evaluated the performance of a humidified nasal high-flow system (Optiflow, Fisher and Paykel Healthcare) by measuring delivered FiO, and airway pressures. Oxygraphy, capnography and measurement of airway pressures were performed through a hypopharyngeal catheter in healthy volunte...