Evaluation of a New Interface Combining High-Flow Nasal Cannula and CPAP.
Adult
Air Pressure
Cannula
Continuous Positive Airway Pressure
/ instrumentation
Diaphragm
/ diagnostic imaging
Exhalation
Female
Humans
Inhalation
Male
Oxygen
/ administration & dosage
Oxygen Inhalation Therapy
/ instrumentation
Patient Comfort
Pharynx
Respiration
Respiratory Rate
Temperature
Ultrasonography
Young Adult
breathing pattern
comfort
continuous positive airway pressure
diaphragm contractility
diaphragm ultrasound
healthy volunteers
high-flow nasal cannula
pharyngeal pressure
Journal
Respiratory care
ISSN: 1943-3654
Titre abrégé: Respir Care
Pays: United States
ID NLM: 7510357
Informations de publication
Date de publication:
Oct 2019
Oct 2019
Historique:
pubmed:
6
6
2019
medline:
29
7
2020
entrez:
6
6
2019
Statut:
ppublish
Résumé
This study assessed the effects of a new interface that combined CPAP 10 cm H After baseline assessment during spontaneous breathing, HFNC was applied at flows of 30, 40, and 50 L/min. Successively, the volunteers underwent helmet CPAP at 10 cm H Variations of pharyngeal pressures at end-inspiration changes were small overall and clinically unimportant. With the mouth closed, at increasing HFNC flow, variations of pharyngeal pressures at end-expiration increased during both HFNC (from 2.8 up to 7.7) and, to a lesser extent, CPAP + HFNC (from 2.7 up to 3.8) ( CPAP + HFNC was well tolerated, with no adverse effects. Based on our findings, there was no need to vary the CPAP level when adding HFNC. At least in healthy subjects, CPAP + HFNC at 30 L/min seemed to be the best combination.
Sections du résumé
BACKGROUND
BACKGROUND
This study assessed the effects of a new interface that combined CPAP 10 cm H
METHODS
METHODS
After baseline assessment during spontaneous breathing, HFNC was applied at flows of 30, 40, and 50 L/min. Successively, the volunteers underwent helmet CPAP at 10 cm H
RESULTS
RESULTS
Variations of pharyngeal pressures at end-inspiration changes were small overall and clinically unimportant. With the mouth closed, at increasing HFNC flow, variations of pharyngeal pressures at end-expiration increased during both HFNC (from 2.8 up to 7.7) and, to a lesser extent, CPAP + HFNC (from 2.7 up to 3.8) (
CONCLUSIONS
CONCLUSIONS
CPAP + HFNC was well tolerated, with no adverse effects. Based on our findings, there was no need to vary the CPAP level when adding HFNC. At least in healthy subjects, CPAP + HFNC at 30 L/min seemed to be the best combination.
Identifiants
pubmed: 31164484
pii: respcare.06871
doi: 10.4187/respcare.06871
doi:
Substances chimiques
Oxygen
S88TT14065
Types de publication
Evaluation Study
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1231-1239Informations de copyright
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