Figure 2From: Effect of norepinephrine dosage and calibration frequency on accuracy of pulse contour-derived cardiac outputArterial stiffness. Pulse pressure (PP) to stroke volume (SV) relationship (PP/SV) as a measure of central arterial stiffness within the different norepinephrine (NE) dosage (μg/kg/min) subsets. Data are means ± SD; *P < 0.05 vs. no NE; #P < 0.05 vs. NE < 0.1 μg/kg/min.Back to article page