Analysis of the accuracy of continuous thermodilution cardiac output measurement - Comparison with intermittent thermodilution and Fick cardiac output measurement
(1996) Intensive Care Medicine — Vol. 22, n° 10, p. 1125-1129 (1996)
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- Abstract
- Objective: To evaluate the accuracy of cardiac output measurement obtained by a new continuous thermodilution cardiac output (CCO) pulmonary artery catheter compared to intermittent thermodilution (TCO) and the direct Fick method. Design: Prospective open trial. Setting: University hospital, intensive care unit. Patients: 23 patients (15 surgical, 8 non-surgical) were monitored with the Intellicath pulmonary catheter. Cardiac output was evaluated by the three methods every 4 to 6 h as long as the pulmonary artery catheter was necessary (8 - 96 h). Results: The correlation coefficient between CCO and TCO was 0.92, no systematic bias was observed, and the relative error increased from 13.9% for a cardiac output of 2 l/min to 23.7% for an output of 10 l/min. When comparing CCO and Fick, the correlation coefficient was 0.89, no bias was detected, and the relative error increased from 20.4% for outputs of 2 l/min to 27.2% for outputs of 10 l/min. Conclusions: CCO provides clinically acceptable measurements. At high cardiac outputs, the difference with other methods increases and the results must be cautiously interpreted.
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Citations
Jacquet, L.-M., Hanique, G., Glorieux, D., Matte, P., & Goenen, M. (1996). Analysis of the accuracy of continuous thermodilution cardiac output measurement - Comparison with intermittent thermodilution and Fick cardiac output measurement. Intensive Care Medicine, 22(10), 1125-1129. https://doi.org/10.1007/BF01699240 (Original work published 1996)