Identifying Prognostic Criteria for Survival after Resuscitation Assisted by Extracorporeal Membrane Oxygenation
Table 1
Demographic data, laboratory tests before ECMO initiation, and CPR duration, according to survival status.
Variable
Death on ECMO
Death after ECMO weaning
Survival to discharge
value†
()
()
()
Age (months)
57 (27; 100)
37 (9; 110)
111 (14; 182)
0.42
Weight (kg)
20 (12; 25)
9 (6; 20)
25 (9; 55)
0.16
Noncardiac disease
4 (44%)
0 (0%)
0 (0%)
0.06
ECMO duration (days)
4 (2; 6)
6 (1; 7)
11 (1; 14)
0.56
Highest lactate level before ECMO (mmol/L)
16 (9.45; 18)
13.2 (3.3; 20)
6.1 (0.9; 11.1)
0.12
Highest potassium level before ECMO (mmol/L)
5.8 (4.2; 8.5)
4.6 (4.4; 5.3)
4.3 (4.1; 4.8)
0.29
Lowest pH level before ECMO
6.72 (6.55; 6.89)
6.85 (6.55; 7.21)
7.08 (7.06; 7.31)
0.16
Highest pCO2 level before ECMO (kPa)
10.4 (6.4; 14.1)
8.1 (4.6; 13.8)
8.7 (5.8; 9.8)
0.43
Lowest bicarbonate level before ECMO (mmol/L)
10.5 (5.5; 14.8)
17.3 (6.3; 23.5)
19.8 (12.2; 31.4)
0.13
CPR duration until ECMO initiation (minutes)‡
110 (52; 120)
60 (5.5; 145)
15 (6; 65)
0.17
Survival to discharge was defined as survival to hospital discharge. †The statistical test assessed the differences between the three groups (death on ECMO, death after ECMO weaning, survival to discharge). ‡We considered ECMO initiation as the time when oxygenated blood was delivered to the patient through the ECMO cannulas. Data are shown as the median (interquartile range) or the number (%). ECMO: extracorporeal membrane oxygenation; pCO2: partial pressure of carbon dioxide; CPR: cardiopulmonary resuscitation.
