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A Comparison between four Techniques to Measure Cardiac Output
Pironet, Antoine; Dauby, Pierre; Chase, J. Geoffrey et al.
2016In Proceedings of the 38th International Conference of the IEEE Engineering in Medicine and Biology Society
Peer reviewed
 

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Abstract :
[en] Cardiac output is an important variable when monitoring hemodynamic status. In particular, changes in cardiac output represent the goal of several circulatory management therapies. Unfortunately, cardiac output is very difficult to estimate, either in experimental or clinical settings. The goal of this work is to compare four techniques to measure cardiac output: pressure-volume catheter, aortic flow probe, thermodilution, and the PiCCO monitor. These four techniques were simultaneously used during experiments of fluid and endotoxin administration on 7 pigs. Findings show that, first, each individual technique is precise, with a relative coefficient of repeatability lower than 7 %. Second, 1 cardiac output estimate provided by any technique relates poorly to the estimates from the other 3, even if there is only small bias between the techniques. Third, changes in cardiac output detected by one technique are only detected by the others in 62 to 100 % of cases. This study confirms the difficulty of obtaining a reliable clinical cardiac output measurement. Therefore, several measurements using different techniques should be performed, if possible, and all such should be treated with caution.
Disciplines :
Cardiovascular & respiratory systems
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Pironet, Antoine ;  Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Thermodynamique des phénomènes irréversibles
Dauby, Pierre  ;  Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Thermodynamique des phénomènes irréversibles
Chase, J. Geoffrey
MORIMONT, Philippe ;  Centre Hospitalier Universitaire de Liège - CHU > Frais communs médecine - Pool assistants
JANSSEN, Nathalie ;  Centre Hospitalier Universitaire de Liège - CHU > Service des urgences
LAMBERMONT, Bernard  ;  Centre Hospitalier Universitaire de Liège - CHU > Frais communs médecine - Pool assistants
Davidson, Shaun M.
Desaive, Thomas  ;  Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Thermodynamique des phénomènes irréversibles
Language :
English
Title :
A Comparison between four Techniques to Measure Cardiac Output
Publication date :
17 August 2016
Event name :
38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Event organizer :
IEEE Engineering in Medicine and Biology Society
Event place :
Orlando, United States - Florida
Event date :
du 16 au 20 août 2016
Audience :
International
Main work title :
Proceedings of the 38th International Conference of the IEEE Engineering in Medicine and Biology Society
Pages :
2717-2720
Peer reviewed :
Peer reviewed
Available on ORBi :
since 23 September 2016

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