Influence of compliance and resistance of the test lung on the accuracy of the tidal volume delivered by the ventilator.

ABSTRACT:

Background

Large variations in respiratory system compliance and resistance may cause the accuracy of tidal volume (VT) delivery beyond the declared range. This study aimed at evaluating the accuracy of VT delivery using a test lung model to simulate pulmonary mechanics under normal or disease conditions.

Methods

In vitro assessment of the VT delivery accuracy was carried out on two commercial ventilators. Measurements of the inspired and expired VT from the ventilator and FlowAnalyser were compared to evaluate the separated and combined influences of compliance and resistance on the delivered VT accuracy. To do this, the errors of five delivered volumes (30 ml, 50 ml, 100 ml, 300 ml, and 500 ml) were checked under 29 test conditions involving a total of 27 combinations of r

SUBMITTER: Chen ZL 

PROVIDER: S-EPMC11465742 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature