Monitoring cardiac output using the femoral and radial arterial pressure waveform

Abstract

SummaryThis study was performed to determine the interchangeability of femoral artery pressure and radial artery pressure measurements as the input for the PiCCO system (Pulsion Medical Systems, Munich, Germany). We studied 15 intensive care patients following cardiac surgery. Five‐second averages of the cardiac output derived from the femoral artery pressure (COfem) were compared to 5‐s averages derived from the radial artery pressure (COrad). One patient was excluded due to problems in the pattern recognition of the arterial pressure signal. In the remaining 14 patients, 14 734 comparative cardiac output values were analysed. The mean sample time was 88 min, range [30–119 min]. Mean (SD) COfem was 6.24 (1.1) l.min−1 and mean COrad 6.23 (1.1) l.min−1. Bland‐Altman analysis showed an excellent agreement with a bias of − 0.01 l.min−1, and limits of agreement from 0.60 to − 0.62 l.min−1. If changes in CO were > 0.5 l.min−1, the direction of changes in COfem and COrad were equal in 97% of instances. We conclude that femoral artery pressure and radial artery pressure are interchangeable as inputs for the PiCCO device.

Comparison of monitoring performance of Bioreactance vs. pulse contour during lung recruitment maneuvers

“…A PICCO+ ® system (Pulsion Medical System, Munich, Germany) was inserted to determine CO from both TD and PC in patients in whom hemodynamic monitoring was indicated according to our standard clinical practice. The arterial line was inserted in the radial artery [12]. Noninvasive bioreactance CO monitoring was obtained using the NICOM ® system (Cheetah Medical Inc., Portland, OR, USA) described previously [13].…”

Methods in pharmacology: measurement of cardiac output

“…Invasive catheterization is thus still required. For the PiCCO device both the radial and the femoral artery approach can be used [33]. A basic overview of the computation of pulse contour cardiac output is shown in Figure 5.…”

Burn Resuscitation

“…59 -62 Pulse contour analysis has been found to be effective using both femoral and radial arterial catheters. 61 These devices have not been prospectively tested in burn patients. Other methods include measuring transesophageal echocardiography, 62 partial carbon dioxide rebreathing, 62 and impedance electrocardiography.…”