Computational fluid dynamics comparison of the upper airway velocity, pressure, and resistance in cats using an endotracheal tube or a supraglottic airway device.
ETT
airway management
feline
flow
general anesthesia
in silico
v-gel®
Journal
Frontiers in veterinary science
ISSN: 2297-1769
Titre abrégé: Front Vet Sci
Pays: Switzerland
ID NLM: 101666658
Informations de publication
Date de publication:
2023
2023
Historique:
received:
09
03
2023
accepted:
04
09
2023
medline:
11
10
2023
pubmed:
11
10
2023
entrez:
11
10
2023
Statut:
epublish
Résumé
In veterinary medicine, airway management of cats under general anesthesia is performed with an endotracheal tube (ETT) or supraglottic airway device (SGAD). This study aims to describe the use of computational fluid dynamics (CFD) to assess the velocities, pressures, and resistances of cats with ETT or SGAD. A geometrical reconstruction model of the device, trachea, and lobar bronchi was carried out from computed tomography (CT) scans that include the head, neck, and thorax. Twenty CT scans of cats under general anesthesia using ETT ( Recirculatory flow and high velocities were found at the ETT's bevel and at the glottis level in the SGAD group. The pressure gradient (Δp) was more enhanced in the ETT cases compared with the SGAD cases, where the pressure change was drastic. In region A, the Δp was higher in the ETT group, while in regions B and C, it was higher in the SGAD group. The general resistance was not statistically significant between groups ( Overall, the provided CT-based CFD analysis demonstrated regional changes in airway pressure and resistance between ETT and SGAD during anesthetic flow conditions. Correct selection of the airway device size is recommended to avoid upper airway obstruction or changes in flow parameters.
Identifiants
pubmed: 37818391
doi: 10.3389/fvets.2023.1183223
pmc: PMC10561303
doi:
Types de publication
Journal Article
Langues
eng
Pagination
1183223Informations de copyright
Copyright © 2023 Zamora-Perarnau, Malvè and Fernández-Parra.
Déclaration de conflit d'intérêts
The authors declare that the research was conducted without any commercial or financial relationships that could be construed as a potential conflict of interest.
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