Comparison of cardiac output values; pulse contour methods against thermodilution technique
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KeywordsCardiac Output Emergency Medicine Output Data Small Error Reference Method
We evaluated the performance of the FloTrac/Vigileo system (FCO) and simultaneously obtained cardiac output (CO) values with the PiCCOplus (PCO), LiDCO™plus (LCO), Vigilance continuous pulmonary artery thermodilution (CCO) against the intermittent pulmonary artery thermodilution technique (ICO).
Data were collected during standard postoperative care in 28 cardiac surgery patients. The cardiac output data were collected at 1 hour (T1), 2 hours (T2), 4 hours (T3), 8 hours (T4), 12 hours (T5), 24 hours (T6), 36 hours (T7), and 48 hours (T8) after ICU admission. The number of observations per patient varied between four and eight. Data were analyzed with Bland-Altman statistics.
The performance of pulse contour methods has significantly increased in the past few years, which makes comparisons with older publications invalid. The auto-calibrated FloTrac/Vigileo system can replace the initially PAC-calibrated LiDCO and PiCCO system.