Reliability and limits of transport-ventilators to safely ventilate severe patients in special surge situations - Université d'Angers Accéder directement au contenu
Article Dans Une Revue Annals of Intensive Care Année : 2020

Reliability and limits of transport-ventilators to safely ventilate severe patients in special surge situations

Résumé

Background Intensive Care Units (ICU) have sometimes been overwhelmed by the surge of COVID-19 patients. Extending ICU capacity can be limited by the lack of air and oxygen pressure sources available. Transport ventilators requiring only one O-2 source may be used in such places. Objective To evaluate the performances of four transport ventilators and an ICU ventilator in simulated severe respiratory conditions. Materials and methods Two pneumatic transport ventilators, (Oxylog 3000, Draeger; Osiris 3, Air Liquide Medical Systems), two turbine transport ventilators (Elisee 350, ResMed; Monnal T60, Air Liquide Medical Systems) and an ICU ventilator (Engstrom Carestation-GE Healthcare) were evaluated on a Michigan test lung. We tested each ventilator with different set volumes (Vt(set) = 350, 450, 550 ml) and compliances (20 or 50 ml/cmH(2)O) and a resistance of 15 cmH(2)O/l/s based on values described in COVID-19 Acute Respiratory Distress Syndrome. Volume error (percentage of Vt(set)) with P-0.1 of 4 cmH(2)O and trigger delay during assist-control ventilation simulating spontaneous breathing activity with P-0.1 of 4 cmH(2)O and 8 cmH(2)O were measured. Results Grouping all conditions, the volume error was 2.9 +/- 2.2% for Engstrom Carestation; 3.6 +/- 3.9% for Osiris 3; 2.5 +/- 2.1% for Oxylog 3000; 5.4 +/- 2.7% for Monnal T60 and 8.8 +/- 4.8% for Elisee 350. Grouping all conditions (P-0.1 of 4 cmH(2)O and 8 cmH(2)O), trigger delay was 50 +/- 11 ms, 71 +/- 8 ms, 132 +/- 22 ms, 60 +/- 12 and 67 +/- 6 ms for Engstrom Carestation, Osiris 3, Oxylog 3000, Monnal T60 and Elisee 350, respectively. Conclusions In surge situations such as COVID-19 pandemic, transport ventilators may be used to accurately control delivered volumes in locations, where only oxygen pressure supply is available. Performances regarding triggering function are acceptable for three out of the four transport ventilators tested.
Fichier principal
Vignette du fichier
s13613-020-00782-5 (1.43 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-03094017 , version 1 (28-05-2021)

Identifiants

Citer

Dominique Savary, Arnaud Lesimple, Francois Beloncle, François Morin, François Templier, et al.. Reliability and limits of transport-ventilators to safely ventilate severe patients in special surge situations. Annals of Intensive Care, 2020, 10 (1), ⟨10.1186/s13613-020-00782-5⟩. ⟨hal-03094017⟩
60 Consultations
40 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More