The value of arterial pressure waveform cardiac output measurements in the radial and femoral artery in major cardiac surgery patients

A relatively new uncalibrated arterial pressure waveform cardiac output (CO) measurement technique is the Pulsioflex-ProAQT® system. Aim of this study was to validate this system in cardiac surgery patients with a specific focus on the evaluation of a difference in the radial versus the femoral arterial access, the value of the autocalibration modus and the ability to show fluid-induced changes.