Area under the Receiver Operating Characteristic Curve showing the ability of preload variables to predict an increase in stroke volume generated by pulmonary thermodilution ≥15% at baseline and during pleural effusion.

BL, baseline; PLE, pleural effusion; AUC, area under the curve; 95% CI, 95% confidence interval; CVP, central venous pressure; PAOP, pulmonary artery occlusion pressure; GEDV, global end-diastolic volume; PPV, pulse pressure variation; SVV, stroke volume variation; n.a., not assessed.