Table 4.

Monitoring values of haemodynamic parameters for fluid responsiveness

	AUC ± Std. error P		Optimal cutoff sens		Spec	PPV	NPV
SV ≥ 5 %
Delta PP (mmHg)	0.76 ± 0.09	0.003	4	68	88	87	70
Delta MAP (mmHg)	0.74 ± 0.09	0.006	6	58	88	85	64
Delta rHb (AU)	0.72 ± 0.09	0.015	−0.7	44	93	68	73
SV ≥ 10 %
Delta PP (mmHg)	0.77 ± 0.09	0.004	6	73	90	85	82
Delta MAP (mmHg)	0.75 ± 0.09	0.006	6	73	90	85	82
Delta µHbSO2 (%)	0.73 ± 0.09	0.015	2	64	79	69	75
Delta rHb (AU)	0.71 ± 0.09	0.025	1.5	50	89	78	71
Delta MFI (AU)	0.69 ± 0.10	0.048	0	71	69	67	73

AUC area under the curve, Std. standard, Sens sensitivity, Spec specificity, PPV positive predictive value, NPV negative predictive value, PP pulse pressure, SV stroke volume, MAP mean arterial pressure, μHbSO ₂ microvascular haemoglobin oxygen saturation, rHb relative haemoglobin concentration, MFI microvascular flow index