Comparison of mortality prediction models in acute respiratory distress syndrome undergoing extracorporeal membrane oxygenation and development of a novel prediction score: the PREdiction of Survival on ECMO Therapy-Score (PRESET-Score)

Table 4 PRESET-Score at ECMO initiation

Variable	Points
Mean arterial pressure (mmHg)
> 100	0
91–100	1
81–90	2
71–80	3
≤ 70	4
Lactate concentration (mmol l^–1)
≤ 1.50	0
1.51–3.00	1
3.01–6.00	2
6.01–10.00	3
> 10.00	4
pH_a
> 7.300	0
7.201–7.300	1
7.101–7.200	2
≤ 7.100	3
Platelet concentration (×1000 μl^–1)
> 200	0
101–200	1
≤ 100	2
Hospital days pre ECMO
≤ 2	0
3–7	1
> 7	2
Total score	0–15
ICU mortality by risk class	Mortality (%)
PRESET-Score 0–5, risk class I	26
PRESET-Score 6–9, risk class II	68
PRESET-Score 10–15, risk class III	93

ECMO extracorporeal membrane oxygenation, ICU intensive care unit, PRESET-Score PREdiction of Survival on ECMO Therapy-Score

ISSN: 1364-8535