DocumentCode :
2091893
Title :
Cardiac output estimation in mechanically ventilated patients: A comparison between prolonged expiration method and thermodilution
Author :
Cecchini, S. ; Schena, E. ; Saccomandi, P. ; Polisca, F. ; Di Cecca, I. ; Notaro, M. ; Carassiti, M. ; Silvestri, Stefano
Author_Institution :
Center for Integrated Res., Univ. Campus Bio-Medico di Roma, Rome, Italy
fYear :
2012
fDate :
Aug. 28 2012-Sept. 1 2012
Firstpage :
2708
Lastpage :
2711
Abstract :
A non-invasive method to estimate cardiac output (CO) in mechanically ventilated patients, based on prolonged expiration, has been previously described. With the aim to assess its performances, we prospectively enrolled fifteen cardiac surgery patients, and compared the results obtained with the non-invasive method with the ones obtained using two invasive approaches based on thermodilution. The correlations between the prolonged expiration method with both the thermodilution-based ones show high values (ρ2>;0.77 and ρ2>;0.89). This encouraging agreement is also confirmed by the closeness between the measured values of CO: the mean differences considering all patients and the two reference invasive techniques are -0.8 % and -7.5 %. These values show the slight underestimation of CO by the proposed non-invasive method with respect to the gold standard. On the other hand the described method could represent a good compromise between accuracy and non-invasiveness, which fosters the implementation of a new monitoring tool suitable for a semi-continuous CO assessment.
Keywords :
cardiology; patient monitoring; cardiac output estimation; cardiac surgery patients; mechanically ventilated patients; noninvasive method; prolonged expiration method; semicontinuous CO assessment; thermodilution; Biomedical measurements; Blood; Carbon dioxide; Estimation; Gold; Standards; Surgery; Algorithms; Cardiac Output; Humans; Respiration, Artificial; Thermodilution;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2012 Annual International Conference of the IEEE
Conference_Location :
San Diego, CA
ISSN :
1557-170X
Print_ISBN :
978-1-4244-4119-8
Electronic_ISBN :
1557-170X
Type :
conf
DOI :
10.1109/EMBC.2012.6346523
Filename :
6346523
Link To Document :
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