Patients alter power of breathing as the primary response to changes in pressure support ventilation.
Mechanical ventilation
Power of breathing
Pressure support ventilation
Spontaneous breathing
Work of breathing
Journal
Journal of critical care
ISSN: 1557-8615
Titre abrégé: J Crit Care
Pays: United States
ID NLM: 8610642
Informations de publication
Date de publication:
06 2020
06 2020
Historique:
received:
15
11
2019
revised:
05
03
2020
accepted:
06
03
2020
pubmed:
28
3
2020
medline:
30
4
2021
entrez:
28
3
2020
Statut:
ppublish
Résumé
The patient-ventilator relationship is dynamic as the patient's health fluctuates and the ventilator settings are modified. Spontaneously breathing patients respond to mechanical ventilation by changing their patterns of breathing. This study measured the physiologic response when pressure support (PS) settings were modified during mechanical ventilation. Subjects were instrumented with a non-invasive pressure, flow, and carbon dioxide airway sensor to estimate tidal volume, respiratory rate, minute ventilation, and end-tidal CO Data was collected on 248 patients. The primary patient response to changes in PS was to adjusting effort (power of breathing) followed by adjusting tidal volume. Changes in respiratory rate were less definite while changes in minute ventilation and end-tidal CO The data indicates that patients maintain a set minute ventilation by adjusting their breathing rate, volume, and power. The data indicates that the subjects regulate their Ve and PetCO
Identifiants
pubmed: 32213447
pii: S0883-9441(19)31739-3
doi: 10.1016/j.jcrc.2020.03.004
pii:
doi:
Substances chimiques
Carbon Dioxide
142M471B3J
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
208-213Informations de copyright
Copyright © 2020 Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of Competing Interest All authors report no conflict of interest.