Why the study?
Does transtracheal Doppler provide accurate continuous cardiac output estimation compared to thermodilution in patients after open heart surgery?
Population
9 patients after open heart surgery (coronary artery bypass grafting, n = 4; mitral valve replacement, n = 5)
Comparison
Transtracheal Doppler computer for continuous… vs Simultaneous thermodilution
Design
Cohort
Follow-up
During the period of tracheal intubation
Authors
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Limited TTD-thermodilution correlation cautions against routine CO monitoring post-cardiac surgery; leaves open further validation studies.
Does transtracheal Doppler provide accurate continuous cardiac output estimation compared to thermodilution in patients after open heart surgery?
Transtracheal Doppler does not offer accurate cardiac output determinations compared to thermodilution and is impractical for routine clinical use in post-cardiac surgery patients.
Hausen et al. (1992) studied this question.
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