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Model iterative airway pressure reconstruction during mechanical ventilation asynchrony: Shapes and sizes of reconstruction
Tan, C. P.; Chiew, Y. S.; Geoffrey Chase, J. et al.
2018In IFMBE Proceedings, 67, p. 27-33
Peer reviewed
 

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Keywords :
Airway pressure reconstruction; Asynchrony; Mechanical ventilation; Spontaneous breathing; Biomedical engineering; Mechanics; Pressure; Respiratory mechanics; Ventilation; Airway pressures; Model-based method; Patient specific; Performance and reliabilities; Reconstruction method; Iterative methods
Abstract :
[en] Model-based methods estimating patient-specific respiratory mechanics may help intensive care clinicians in setting optimal ventilation parameters. However, these methods rely heavily on the quality of measured airway pressure and flow profiles for reliable respiratory mechanics estimation. Thus, asynchronous and/or spontaneous breathing cycles that do not follow a typical passive airway profile affect the performance and reliability of model-based methods. In this study, a model iterative airway pressure reconstruction method is presented. It aims to reconstruct a measured airway pressure affected by asynchronous breathing iteratively, trying to match the profile of passive breaths with no asynchrony or spontaneous breathing effort. Thus, reducing the variability of identified respiratory mechanics over short time periods where changes would be due only to asynchrony or spontaneous artefacts. A total of 2000 breathing cycles from mechanically ventilated patients with known asynchronous breathing were analyzed. It was found that this method is capable of reconstructing an airway pressure free from asynchronous or spontaneous breathing effort. This work focuses on several cases, detailing how iterative pressure reconstruction method performs under different cases, as well as its limitation. © 2018, Springer Science+Business Media Singapore.
Disciplines :
Anesthesia & intensive care
Author, co-author :
Tan, C. P.;  School of Engineering and Advanced Engineering Platform Health Cluster, Monash University Malaysia, Selangor, Malaysia
Chiew, Y. S.;  School of Engineering and Advanced Engineering Platform Health Cluster, Monash University Malaysia, Selangor, Malaysia
Geoffrey Chase, J.;  University of Canterbury, Christchurch, New Zealand
Chiew, Y. W.;  Lam Wah Ee Hospital, George Town, Pulau Pinang, Malaysia
Pretty, C.;  University of Canterbury, Christchurch, New Zealand
Desaive, Thomas  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Thermodynamique des phénomènes irréversibles
Ralib, A. M.;  International Islamic University Malaysia, Kuantan, Pahang, Malaysia
Mat, M. B.;  International Islamic University Malaysia, Kuantan, Pahang, Malaysia
Usman, J.
Ibrahim, F.
Ahmad, M. Y.
Teh, S. J.
Hamzah, N.
More authors (3 more) Less
Language :
English
Title :
Model iterative airway pressure reconstruction during mechanical ventilation asynchrony: Shapes and sizes of reconstruction
Publication date :
2018
Event name :
2nd International Conference for Innovation in Biomedical Engineering and Life Sciences, ICIBEL 2017, held in conjunction with the 10th Asia Pacific Conference on Medical and Biological Engineering, APCMBE 2017
Event date :
10 December 2017 through 13 December 2017
Audience :
International
Journal title :
IFMBE Proceedings
ISSN :
1680-0737
Publisher :
Springer Verlag
Volume :
67
Pages :
27-33
Peer reviewed :
Peer reviewed
Funders :
HRC - Health Research Council of New Zealand [NZ]
MOHE - Ministry of Higher Education Malaysia
Monash University Malaysia. Advanced Engineering Platform Health Cluster
Commentary :
9789811075537
Available on ORBi :
since 08 June 2020

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