Cardiac output measurement in critically ill patients: comparison of continuous and conventional thermodilution techniques

Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie
J Y LefrantJ J Eledjam

Abstract

The purpose of the study was to compare cardiac output (CO) measurement by continuous (CTD) with that by conventional thermodilution (TD) in critically ill patients. In 19 of 20 critically ill patients requiring a pulmonary artery catheterism, 105 paired CO measurements were performed by both CTD and TD. Regression analysis showed that: CTD CO = 1.18 TD CO - 0.47. Correlation coefficient was 0.96. Bias and limit of agreement were -0.8 and 2.4 L.min-1, respectively. When a Bland and Altman diagram was constructed according to cardiac index ranges, biases were -0.2 and -0.3 and -0.8 L.min-1.m-2 and limits of agreement were 0.3, 0.7 and 1.6 L.min-1.m-2 for low (< 2.5 L.min-1.m-2), normal (between 2.5 and 4.5 L.min-1.m-2) and high (> 4.5 L.min-1.m-2) cardiac indexes, respectively. It is concluded that CTD, compared with TD, is a reliable method of measuring CO, especially when cardiac index is < or = 4.5 L.min-1.m-2.

References

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Citations

Jul 21, 1998·Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie·P SeguinY Mallédant
May 30, 1998·The American Journal of Cardiology·T W RowlandL C Ferrone
Nov 21, 1997·Critical Care Medicine·R LintonR Leach
May 16, 2000·Critical Care Medicine·C C HuangK H Hsu
Nov 5, 2011·Annales Françaises D'anesthèsie Et De Rèanimation·V ReubrechtL Muller
Apr 5, 2019·Cardiology in Review·Erwin E Argueta, David Paniagua
Jun 17, 2005·Journal of Clinical Monitoring and Computing·Hironori IshiharaSunao Takeda
Mar 31, 1999·The Journal of Cardiovascular Nursing·J Cathelyn, L L Glenn
Jan 5, 2001·The Journal of Cardiovascular Nursing·K OttT Ahrens
Mar 23, 2021·Frontiers in Physiology·Begoña Quintana-VillamandosJuan Francisco Del Cañizo

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