Bench Assessment of Expiratory Valve Resistance of Current ICU Ventilators in Dynamic Conditions.
ARDS
ICU ventilator
PEEP
PEEP device
expiratory valve
flow resistance
mechanical ventilation
Journal
Respiratory care
ISSN: 1943-3654
Titre abrégé: Respir Care
Pays: United States
ID NLM: 7510357
Informations de publication
Date de publication:
Apr 2021
Apr 2021
Historique:
pubmed:
5
11
2020
medline:
27
4
2021
entrez:
4
11
2020
Statut:
ppublish
Résumé
We hypothesized that the lack of benefit of setting a low versus a high PEEP in patients with ARDS may be due in part to differences in the dynamic behavior of the expiratory valve in ventilators. We tested this hypothesis by conducting a bench comparison of the dynamic behavior of expiratory valves on ICU ventilators currently in use. We attached 7 ICU ventilators (C5, C6, Carescape, PB980, ServoU, V500, and V680) to the ASL 5000 lung model (passive condition with compliance 20 mL/cm H Median instantaneous expiratory resistance values differed between the ventilators and PEEP settings with a significant interaction: at PEEP 5 cm H The resistance of active expiratory valves differed significantly between the 7 ICU ventilators tested.
Sections du résumé
BACKGROUND
BACKGROUND
We hypothesized that the lack of benefit of setting a low versus a high PEEP in patients with ARDS may be due in part to differences in the dynamic behavior of the expiratory valve in ventilators. We tested this hypothesis by conducting a bench comparison of the dynamic behavior of expiratory valves on ICU ventilators currently in use.
METHODS
METHODS
We attached 7 ICU ventilators (C5, C6, Carescape, PB980, ServoU, V500, and V680) to the ASL 5000 lung model (passive condition with compliance 20 mL/cm H
RESULTS
RESULTS
Median instantaneous expiratory resistance values differed between the ventilators and PEEP settings with a significant interaction: at PEEP 5 cm H
CONCLUSIONS
CONCLUSIONS
The resistance of active expiratory valves differed significantly between the 7 ICU ventilators tested.
Identifiants
pubmed: 33144385
pii: respcare.08098
doi: 10.4187/respcare.08098
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
610-618Informations de copyright
Copyright © 2021 by Daedalus Enterprises.
Déclaration de conflit d'intérêts
The authors have disclosed no conflicts of interest.