Format

Send to

Choose Destination
Ann Intensive Care. 2017 Dec;7(1):68. doi: 10.1186/s13613-017-0285-2. Epub 2017 Jun 17.

A new global and comprehensive model for ICU ventilator performances evaluation.

Author information

1
Urgences Adultes/SAMU 86, CHU de Poitiers, 86000, Poitiers Cedex, France.
2
ABS-Lab, Laboratoire d'Anatomie, Biomécanique et Simulation, Université de Poitiers, Rue de la Milétrie, 86000, Poitiers Cedex, France.
3
B-Com Technical Research Institute, 29200, Brest Cedex, France.
4
CeSim/LaTIM INSERM UMR 1101, Université de Bretagne Occidentale, Rue Camille Desmoulins, 29200, Brest Cedex, France. erwan.lher@chu-brest.fr.
5
Médecine Intensive et Réanimation, CHRU de Brest, Boulevard Tanguy Prigent, 29200, Brest Cedex, France. erwan.lher@chu-brest.fr.

Abstract

BACKGROUND:

This study aimed to provide a new global and comprehensive evaluation of recent ICU ventilators taking into account both technical performances and ergonomics.

METHODS:

Six recent ICU ventilators were evaluated. Technical performances were assessed under two FIO2 levels (100%, 50%), three respiratory mechanics combinations (Normal: compliance [C] = 70 mL cmH2O-1/resistance [R] = 5 cmH2O L-1 s-1; Restrictive: C = 30/R = 10; Obstructive: C = 120/R = 20), four exponential levels of leaks (from 0 to 12.5 L min-1) and three levels of inspiratory effort (P0.1 = 2, 4 and 8 cmH2O), using an automated test lung. Ergonomics were evaluated by 20 ICU physicians using a global and comprehensive model involving physiological response to stress measurements (heart rate, respiratory rate, tidal volume variability and eye tracking), psycho-cognitive scales (SUS and NASA-TLX) and objective tasks completion.

RESULTS:

Few differences in terms of technical performance were observed between devices. Non-invasive ventilation modes had a huge influence on asynchrony occurrence. Using our global model, either objective tasks completion, psycho-cognitive scales and/or physiological measurements were able to depict significant differences in terms of devices' usability. The level of failure that was observed with some devices depicted the lack of adaptation of device's development to end users' requests.

CONCLUSIONS:

Despite similar technical performance, some ICU ventilators exhibit low ergonomics performance and a high risk of misusage.

Supplemental Content

Full text links

Icon for Springer Icon for PubMed Central
Loading ...
Support Center