Using continuous nasal airway pressure in infants with craniofacial malformations

2021 ◽  
pp. 101284
Author(s):  
Alessandro Amaddeo ◽  
Lucie Griffon ◽  
Brigitte Fauroux
Keyword(s):  
Airway Pressure ◽  
Nasal Airway ◽  
Craniofacial Malformations

scholarly journals Effects of experimental changes in nasal airway pressure on mucosal output of plasma

2003 ◽  
Vol 23 (3) ◽  
pp. 155-158 ◽  
Author(s):  
Søren Berg ◽  
Per Wollmer ◽  
Morgan Andersson ◽  
Carl G. A. Persson ◽  
Lennart Greiff
Keyword(s):  
Airway Pressure ◽  
Nasal Airway

Positive Nasal Airway Pressure Eliminates Snoring As Well As Obstructive Sleep Apnea

CHEST Journal ◽  
1984 ◽  
Vol 85 (1) ◽  
pp. 15-20 ◽  
Author(s):  
Richard B. Berry ◽  
A. Jay Block
Keyword(s):  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Airway Pressure ◽  
Nasal Airway ◽  
Obstructive Sleep

Nasal airway responses to nasal continuous positive airway pressure breathing: An in-vivo pilot study

2016 ◽  
Vol 49 (9) ◽  
pp. 1887-1890 ◽  
Author(s):  
David E. White ◽  
Jim Bartley ◽  
Muhammad Shakeel ◽  
Roy J. Nates ◽  
Robin K.S. Hankin
Keyword(s):  
Pilot Study ◽  
Continuous Positive Airway Pressure ◽  
Airway Pressure ◽  
Positive Airway Pressure ◽  
Nasal Airway ◽  
Airway Responses

High flow nasal cannula: Influence of gas type and flow rate on airway pressure and CO2 clearance in adult nasal airway replicas

2019 ◽  
Vol 65 ◽  
pp. 73-80 ◽  
Author(s):  
C.P. Moore ◽  
I.M. Katz ◽  
M. Pichelin ◽  
G. Caillibotte ◽  
W.H. Finlay ◽  
...  
Keyword(s):  
Flow Rate ◽  
Airway Pressure ◽  
High Flow ◽  
Nasal Cannula ◽  
Nasal Airway ◽  
High Flow Nasal Cannula

scholarly journals Comparison of airway pressures and expired gas washout for nasal high flow versus CPAP in child airway replicas

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Kelvin Duong ◽  
Michelle Noga ◽  
Joanna E. MacLean ◽  
Warren H. Finlay ◽  
Andrew R. Martin
Keyword(s):  
Carbon Dioxide ◽  
Airway Pressure ◽  
High Flow ◽  
Nasal Airway ◽  
Lung Simulator ◽  
Airway Pressures ◽  
Obstructive Sleep ◽  
Tracheal Pressure ◽  
Expired Gas ◽  
End Tidal

Abstract Background For children and adults, the standard treatment for obstructive sleep apnea is the delivery of continuous positive airway pressure (CPAP). Though effective, CPAP masks can be uncomfortable to patients, contributing to adherence concerns. Recently, nasal high flow (NHF) therapy has been investigated as an alternative, especially in CPAP-intolerant children. The present study aimed to compare and contrast the positive airway pressures and expired gas washout generated by NHF versus CPAP in child nasal airway replicas. Methods NHF therapy was investigated at a flow rate of 20 L/min and compared to CPAP at 5 cmH2O and 10 cmH2O for 10 nasal airway replicas, built from computed tomography scans of children aged 4–8 years. NHF was delivered with three different high flow nasal cannula models provided by the same manufacturer, and CPAP was delivered with a sealed nasal mask. Tidal breathing through each replica was imposed using a lung simulator, and airway pressure at the trachea was recorded over time. For expired gas washout measurements, carbon dioxide was injected at the lung simulator, and end-tidal carbon dioxide (EtCO2) was measured at the trachea. Changes in EtCO2 compared to baseline values (no intervention) were assessed. Results NHF therapy generated an average positive end-expiratory pressure (PEEP) of 5.17 ± 2.09 cmH2O (mean ± SD, n = 10), similar to PEEP of 4.95 ± 0.03 cmH2O generated by nominally 5 cmH2O CPAP. Variation in tracheal pressure was higher between airway replicas for NHF compared to CPAP. EtCO2 decreased from baseline during administration of NHF, whereas it increased during CPAP. No statistical difference in tracheal pressure nor EtCO2 was found between the three high flow nasal cannulas. Conclusion In child airway replicas, NHF at 20 L/min generated average PEEP similar to CPAP at 5 cm H2O. Variation in tracheal pressure was higher between airway replicas for NHF than for CPAP. The delivery of NHF yielded expired gas washout, whereas CPAP impeded expired gas washout due to the increased dead space of the sealed mask.

scholarly journals Effects of flow on carbon dioxide washout and nasal airway pressure in healthy adult volunteers during the constant-flow mode in a non-invasive ventilator

2020 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Juan-Juan Yao ◽  
Meng-Meng Peng ◽  
Guan-Hua Zou ◽  
Kai-Xin He ◽  
De-Dong Ma
Keyword(s):  
Carbon Dioxide ◽  
Airway Pressure ◽  
Healthy Adult ◽  
Flow Mode ◽  
Nasal Airway ◽  
Constant Flow ◽  
Non Invasive ◽  
Adult Volunteers
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