Lung- and Diaphragm-Protective Ventilation by Titrating Inspiratory Support to Diaphragm Effort: A Randomized Clinical Trial.
Journal
Critical care medicine
ISSN: 1530-0293
Titre abrégé: Crit Care Med
Pays: United States
ID NLM: 0355501
Informations de publication
Date de publication:
01 02 2022
01 02 2022
Historique:
entrez:
31
1
2022
pubmed:
1
2
2022
medline:
1
3
2022
Statut:
ppublish
Résumé
Lung- and diaphragm-protective ventilation is a novel concept that aims to limit the detrimental effects of mechanical ventilation on the diaphragm while remaining within limits of lung-protective ventilation. The premise is that low breathing effort under mechanical ventilation causes diaphragm atrophy, whereas excessive breathing effort induces diaphragm and lung injury. In a proof-of-concept study, we aimed to assess whether titration of inspiratory support based on diaphragm effort increases the time that patients have effort in a predefined "diaphragm-protective" range, without compromising lung-protective ventilation. Randomized clinical trial. Mixed medical-surgical ICU in a tertiary academic hospital in the Netherlands. Patients (n = 40) with respiratory failure ventilated in a partially-supported mode. In the intervention group, inspiratory support was titrated hourly to obtain transdiaphragmatic pressure swings in the predefined "diaphragm-protective" range (3-12 cm H2O). The control group received standard-of-care. Transdiaphragmatic pressure, transpulmonary pressure, and tidal volume were monitored continuously for 24 hours in both groups. In the intervention group, more breaths were within "diaphragm-protective" range compared with the control group (median 81%; interquartile range [64-86%] vs 35% [16-60%], respectively; p < 0.001). Dynamic transpulmonary pressures (20.5 ± 7.1 vs 18.5 ± 7.0 cm H2O; p = 0.321) and tidal volumes (7.56 ± 1.47 vs 7.54 ± 1.22 mL/kg; p = 0.961) were not different in the intervention and control group, respectively. Titration of inspiratory support based on patient breathing effort greatly increased the time that patients had diaphragm effort in the predefined "diaphragm-protective" range without compromising tidal volumes and transpulmonary pressures. This study provides a strong rationale for further studies powered on patient-centered outcomes.
Identifiants
pubmed: 35100192
doi: 10.1097/CCM.0000000000005395
pii: 00003246-202202000-00004
pmc: PMC8797006
doi:
Types de publication
Journal Article
Randomized Controlled Trial
Langues
eng
Sous-ensembles de citation
IM
Pagination
192-203Commentaires et corrections
Type : CommentIn
Informations de copyright
Copyright © 2022 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the Society of Critical Care Medicine and Wolters Kluwer Health, Inc.
Déclaration de conflit d'intérêts
Drs. de Vries’ and Heunks’ institutions received funding from Amsterdam Cardiovascular Sciences. Dr. de Vries has received speaker fees from the Dutch Ultrasound Center (the Netherlands) and travel and speaker fees from the Chinese Organization of Rehabilitation Medicine (China). Dr. Jonkman has received personal fees from Liberate Medical (United States). Dr. Heunks received research support from Liberate Medical (United States), Fisher and Paykel, and Orion Pharma (Finland), and speakers fee from Getinge (Sweden). Dr. de Man disclosed the off-label product use of oxidation-reduction potential measurement with the RedoxSYS System from Aytu Biosciences. The remaining authors have disclosed that they do not have any potential conflicts of interest.
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