Figure 2.

Individual values of baseline static and breath-derived indices in responders and nonresponders. CVP, central venous pressure; PAOP; pulmonary artery occlusion pressure; PAOPtm, transmural pulmonary artery occlusion pressure (see Materials and methods section for details) [20]; Δ_RESPPP, respiratory changes in arterial pulse pressure; dDown, expiratory decrease in systolic arterial pressure; SPV, respiratory changes in systolic arterial pressure; AUC, area under the receiver-operating characteristic curve. Responders are defined as patients increasing their cardiac output by at least 10% after a 500-ml volume expansion. The arrows show patients with acute cor pulmonale (see Materials and methods section for definition).