Early Driving Pressure Changes Predict Outcomes during Venovenous Extracorporeal Membrane Oxygenation for Acute Respiratory Distress Syndrome

Table 4

Ventilator variables.

	Nonsurvivors	Survivors	values
VV-setting ECMO	(n = 15)	(n = 17)
Blood flow (l/min)	4.0	4.6	0.0799
Rotation per minute (rpm)	4160	3427	0.1163
Sweep gas flow (l/min)	3.967	3.882	0.8647
Plateau pressure (mbar)	(n = 28)	(n = 28)
Before ECMO	32.2 ± 4.8	35.0 ± 6.7	0.0998
12 h after ECMO	27.1 ± 4.1	25.6 ± 3.2	0.1496
Positive end-expiratory pressure (mbar)	(n = 28)	(n = 28)
Before ECMO	15.0 ± 3.4	15.4 ± 3.1	0.7798
12 h after ECMO	14.0 ± 2.8	15.3 ± 2.7	0.1049
Mean airway pressure (mbar)	(n = 28)	(n = 28)
Before ECMO	22.7 ± 4.8	22.0 ± 4.1	0.7309
12 h after ECMO	20.2 ± 2.5	19.2 ± 3.3	0.2278
Respiratory rate (per minute)	(n = 28)	(n = 28)
Before ECMO	21 ± 5	23 ± 8	0.7076
12 h after ECMO	15 ± 6	14 ± 5	0.4264
Tidal volumes/ideal body weight (ml/kg)	(n = 28)	(n = 28)
Before ECMO	5.7 ± 2.3	6.3 ± 1.6	0.7875
12 h after ECMO	3.3 ± 4.8	3.7 ± 1.8	0.5783
Static compliance (ml/mbar)	(n = 28)	(n = 28)
Before ECMO	28 ± 11	25 ± 10	0.4976
12 h after ECMO	22 ± 13	31 ± 18	0.0447
Driving pressure (mbar)	(n = 28)	(n = 28)
Before ECMO	16.9 ± 3.8	18.4 ± 6.3	0.4976
12 h after ECMO	13.0 ± 4.3	10.3 ± 3.0	0.0121