2003, Number 2
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Med Crit 2003; 17 (2)
Agreement between two methods for cardiac output determination in critically ill patients: Transesophageal Doppler and bolus thermodilution
Vidal AER, Cerón DU, Sierra UA
Language: Spanish
References: 16
Page: 44-50
PDF size: 80.50 Kb.
ABSTRACT
Introduction: The technological advances in the cardiac output (CO) measurement with transesophageal Doppler (TED) has helped us to dispose of new equipments that can increase their agreement with the measurements of bolus thermodilution technique (BTT).
Objectives: To evalue the agreement between the measurements of CO by TED and CO by TDB.
Materials and methods: CO was measured in 11 critically ill patients, using both methods.
Results: Forty one simultaneous measurements with TED and TDB were done. The correlation coefficient was 0.86, the bias (mean of differences) was -0.98 L/ min, and the agreement limits of 95% (precision) were 0.92 and -2.7 L/min. The analysis of the CO changes variations measured with both methods showed that 58% of the measurements were agree between them and 42% were not.
Conclusions: The DTE do not replace TDB for the CO measurement in critically ill patients. We required more measurements and experience with this method to confirm this conclusion.
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