2019
DOI: 10.1177/0310057x19836430
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A potential method for obtaining wave-form capnography during high flow nasal oxygen

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Cited by 5 publications
(3 citation statements)
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“…It can provide a fraction of inspired oxygen (FiO 2 ) up to 100% along with humidification and heat to prevent nasal mucosa dryness and preserve respiratory mucociliary function. Despite such high flow rates, end-tidal capnography measurement is now possible [41]. Although the precise mechanism of action of HFNO is unknown [33], HFNO improves the efficiency of ventilation and enhances oxygen delivery by washout of nasopharyngeal dead space, increasing PEEP (0.7 cm H 2 O for every increase in 10 l/min).…”
Section: Airway Management and Ventilatory Supportmentioning
confidence: 99%
“…It can provide a fraction of inspired oxygen (FiO 2 ) up to 100% along with humidification and heat to prevent nasal mucosa dryness and preserve respiratory mucociliary function. Despite such high flow rates, end-tidal capnography measurement is now possible [41]. Although the precise mechanism of action of HFNO is unknown [33], HFNO improves the efficiency of ventilation and enhances oxygen delivery by washout of nasopharyngeal dead space, increasing PEEP (0.7 cm H 2 O for every increase in 10 l/min).…”
Section: Airway Management and Ventilatory Supportmentioning
confidence: 99%
“…Greenland successfully used a 14-G cannula placed in the oxygen inlet of the Oxyguard TM bite block to capture a capnography waveform during HFNO administration. 25 A new Optiflow THRIVE TM nasal high-flow cannula with an integrated capnography sampling tube has recently been developed -Optiflow Trace TM (Fisher and Paykel Healthcare, Panmure, Auckland, New Zealand). In that system, exhaled gases are analyzed via the integrated CO 2 sampling interface, which can be configured to sample gas either from the mouth or from the nose.…”
mentioning
confidence: 99%
“…Greenland a utilisé avec succès une canule de 14 G placée dans l'entrée d'oxygène de la pièce buccale Oxyguard TM pour obtenir une capnographie avec l'utilisation d'une CNHD. 25 Une nouvelle canule nasale à haut débit Optiflow THRIVE TM avec un tube d'échantillonnage capnographique intégré a récemment été mise au point, l'Optiflow Trace TM (Fisher and Paykel Healthcare, Panmure, Auckland, Nouvelle-Zélande). Dans ce système, les gaz expirés sont analysés par l'intermédiaire de l'interface intégrée d'échantillonnage du CO 2 , qui peut être configurée pour échantillonner les gaz de la bouche ou du nez.…”
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