Lack of agreement between thermodilution and fick methods in the measurement of cardiac output.
A comparison between the thermodilution method and the Fick method of cardiac output measurement in 30 critically ill patients was performed. Although there was good correlation between both methods, there was poor agreement. The Bland and Altman method of assessing agreement between 2 measurements is the preferred method of agreement assessment. The variables possibly responsible for this disagreement are noted.
Veterans Administration Central California Health Care System, Fresno, CA 93703, USA. Peter.Baylor@att.net
Peter
P
Baylor
D002153:Calorimetry, Indirect; D002302:Cardiac Output; D003422:Critical Care; D006334:Heart Function Tests / Q000379:methods; D006801:Humans; D010101:Oxygen Consumption; D015203:Reproducibility of Results; D013815:Thermodilution