Journal of cardiothoracic and vascular anesthesia
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J. Cardiothorac. Vasc. Anesth.
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J. Cardiothorac. Vasc. Anesth. · Oct 2007
Comparative StudyCardiac output measured by a new arterial pressure waveform analysis method without calibration compared with thermodilution after cardiac surgery.
To investigate whether measuring cardiac output and its course after cardiac surgery by a new analysis technique of radial artery pressure waves, without need for calibration (FloTrac/Vigileo [FV]; Edwards Lifesciences, Irvine, CA), conforms to the standard bolus thermodilution method via a pulmonary artery catheter (PAC). ⋯ The FV arterial pressure waveform analysis method is a clinically applicable method for cardiac output assessment without calibration, after cardiac surgery. It performs well at low cardiac outputs but remains sensitive to changes in vascular tone.