TABLE 3.

Diagnostic Capacity of Variables in Predicting Response to Fluids

Variables	Area Under the Receiver Operating Characteristic Curve	p	Cutoff Value	Sensitivity	Specificity
PPV	0.71 (0.51–0.91)	0.06	10.5	53.8	86.7
PPV in PRL	0.73 (0.54–0.92)	0.04	3.5	92.3	46.7
PPV with cuffs	0.86 (0.74–1)	0.00	8	1	80
ΔPPV cuffs-base	0.90 (0.77–1)	0.00	3.5	84.6	1
ΔPPV cuffs-PRL	0.91 (0.79–1)	0.00	4	92.3	86.7
ΔPPV cuffs-supine	0.97 (0.91–1)	0.00	3.5	92.3	93.3
SVV	0.66 (0.45–0.87)	0.15	15	46.2	86.7
SVV in PRL	0.61 (0.39–0.83)	0.32	12.5	46.2	86.7
SVV with cuffs	0.80 (0.63–0.96)	0.01	9.5	92.3	60
ΔSVV cuffs-base	0.73 (0.45–0.87)	0.04	2.5	61.5	80
ΔSVV cuffs-PRL	0.80 (0.62–0.98)	0.08	5.5	69.2	73.3
ΔSVV cuffs–supine	0.71 (0.5–0.91)	0.06	4.5	69.2	73.3
CVP	0.34 (0.14–0.55)	0.17	—	—	—
ΔCVP PRL-base	0.49 (0.26–0.71)	0.9	—	—	—
ΔCVP base-cuffs	0.49 (0.24–0.71)	0.91	—	—	-
ΔCVP PRL-cuffs	0.47 (0.23–0.7)	0.77	—	—	—
ΔCVP supine-cuffs	0.37 (0.16–0.59)	0.26	—	—	—

cuff = value of the variable during the application of the tourniquets, cuffs-base = value difference between cuff and baseline position, cuffs-PLR = value difference between cuff and passive leg raising, cuffs-supine = value difference between cuff and supine position, CVP = central venous pressure, PLR = passive leg raising, PPV = pulse pressure variation, SVV = stroke volume variation, ΔCVP = change in central venous pressure, ΔPPV = change in pulse pressure variation, ΔSVV = change in stroke volume variation.

Dashes represent data not indicated.