Reliability of manikin‐based studies: an evaluation of manikin characteristics and their impact on measurements of ventilatory variables

Summary Findings from manikin‐based studies on ventilation are commonly directly extrapolated to clinical practice. The aim of this study was to determine how the use of manikins affects measurements of ventilatory variables. We connected a lung simulator to a manikin, which was then ventilated at d...

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Bibliographic Details
Published in:Anaesthesia 2015-08, Vol.70 (8), p.915-921
Main Authors: De Luca, A., Sall, F. S., Sailley, R., Capellier, G., Khoury, A.
Format: Article
Language:English
Subjects:
Anesthesia
Lung
Manikins
Models, Biological
Reproducibility of Results
Respiration
Respiration, Artificial - statistics & numerical data
Tidal Volume
Ventilation
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Summary:Summary Findings from manikin‐based studies on ventilation are commonly directly extrapolated to clinical practice. The aim of this study was to determine how the use of manikins affects measurements of ventilatory variables. We connected a lung simulator to a manikin, which was then ventilated at different inspiratory flows. We defined three experimental models to compare measurements of ventilatory variables between the mechanical ventilator and the lung simulator. Even when no leakage occurred, significant tidal volume deviations were observed; from a mean (SD) of 21 (2) ml to 49 (9) ml, and from 40 (4) ml to 88 (5) ml for invasive and non‐invasive ventilation, respectively (p 
ISSN:0003-2409
1365-2044
DOI:10.1111/anae.13099