Table 1.

Clinical data and arterial blood gases.

Data	Pre-ECMO	Day 1	Day 2	Day 3	Day 4	Day 18
Mechanical ventilation
Ventilatory mode	VCV ∥	PSV ∥	PSV ∥	PSV ∥	PSV ∥	PSV ∥
Peak pressure (min – max) - cm H2O	28 - 28	28 - 33	28 - 33	28 - 28	26 - 28	24 - 24
PEEP (min – max) - cm H2O £	20 – 20	20 – 25	20 - 25	20 - 20	18 - 20	10 – 10
FIO2 (min – max) ¥	0.6 – 0.7	0.7 – 0.7	0.6 – 0.7	0.6 – 0.6	0.6 – 0.6	0.6 – 0.6
Respiratory rate (min – max) - breaths/min	22 - 30	25 - 36	18 - 34	22 - 39	24 – 36	22 - 38
ECMO €
Blood flow (min – max) - L/min	6.0 – 6.5	6.0 – 6.0	5.5 – 6.0	5.0 – 5.5	5.0 – 5.0	5.0 – 5.0
Sweeper flow (min – max) - L/min	6.0 – 10.0	6.0 – 6.0	4.0 – 6.0	2.5 – 4.0	2.5 – 2.5	2.5 – 2.5
FIO2	1.0	1.0	1.0	1.0	1.0	1.0
Routine blood gas
PaO2 - mm Hg	42	50	62	74	55	81
PaCO2 - mm Hg	118	51	38	53	51	51
SBE - mEq/L *	1.8	6.1	-1.0	0.9	-0.8	2.1
pH	7.10	7.41	7.43	7.33	7.32	7.36
Patient data
RASS (min – max)	-1 - 0	0 - 0	0 – 0	0 – 0	0 – 0	-5 - 0
Lung injury score ¶	4.00	4.00	4.00	3.75	3.75	3.00
Total SOFA score §	10	9	6	4	4	4
Respiratory SOFA	4	4	4	4	4	4
Cardiovascular SOFA	3	3	0	0	0	0
Hematological SOFA	1	1	1	0	0	0
Hepatic SOFA	1	0	0	0	0	0
Neurological SOFA	0	0	0	0	0	0
Renal SOFA	1	1	1	0	0	0

^*SBE denotes standard base excess.

# RASS denotes Richmond agitation sedation score.

^§SOFA denotes sequential organ failure assessment. This is a score to diagnose and quantify organ failure, which ranges from 0 to 24.

¶ The lung injury score is Murray`s score, which quantifies the severity of lung injury based on the respiratory compliance, PEEP, number of quadrants of chest X-ray infiltrated and PaO₂/FIO₂ ratio.

∥ VCV denotes volume-controlled ventilation.

∥ PSV denotes pressure-support ventilation.

£ PEEP denotes positive end-expiratory pressure.

¥ FiO₂ denotes inspiratory fraction of oxygen.

€ ECMO denotes extracorporeal membrane oxygenation.