Figure 2From: Pulse-pressure variation and hemodynamic response in patients with elevated pulmonary artery pressure: a clinical studyReceiver operating characteristic (ROC) curves for prediction of ≥10% increase in stroke volume by pulse-pressure variation in cardiac surgery patients. Solid line, all fluid challenges; dotted line, fluid challenges with concomitant increase in central venous pressure; thin solid line, line of identity.Back to article page