Age, mean (SD)—years
|
56 (± 10) n = 101
|
52 (± 10) n = 60
|
61 (± 7) n = 41
|
< 0.001
|
Sex, male, no. (%)
|
71 (70)
|
39 (65)
|
32 (78)
|
0.2655
|
BMI, mean (SD)—kg/m2
|
31 (± 6) n = 101
|
31 (± 6) n = 60
|
31 (± 6) n = 41
|
0.946
|
RESP score, median (IQR)
|
2 (1–4) n = 101
|
2 (1–4) n = 60
|
1 (0–2) n = 41
|
0.001
|
SOFA, median (IQR)
|
8 (7–10) n = 101
|
8 (7–9) n = 60
|
9 (8–11) n = 41
|
0.0002
|
Apache II, mean (SD)
|
20 (± 3) n = 67
|
19 (± 3) n = 45
|
21 (± 3) n = 22
|
0.2791
|
IMV pre-ECMO, median (IQR)—days
|
7.7 (3.6–12.5) n = 101
|
7.8 (2.5–12.5) n = 60
|
6.8 (4–12.4) n = 41
|
0.9586
|
IMV < 7 days, no. (%)
|
48 (48) n = 101
|
27 (45) n = 60
|
21 (51) n = 41
|
0.6805
|
IMV < 10 days, no. (%)
|
66 (65) n = 101
|
39 (65) n = 60
|
27 (66) n = 41
|
1
|
Comorbidities
| | | | |
Arterial hypertension, no. (%)
|
60 (59) n = 101
|
32 (53) n = 60
|
28 (68) n = 41
|
0.1946
|
Coronary artery disease, no. (%)
|
13 (13) n = 101
|
7 (12) n = 60
|
6 (15) n = 41
|
0.765
|
Obesity, no. (%)
|
35 (35) n = 101
|
22 (37) n = 60
|
13 (32) n = 41
|
0.7631
|
Diabetes mellitus, no. (%)
|
25 (25) n = 101
|
14 (23) n = 60
|
11 (27) n = 41
|
0.8689
|
Underlying pulmonary disease, no. (%)
|
19 (19) n = 101
|
8 (13) n = 60
|
11 (27) n = 41
|
0.1484
|
Immunosuppression, no. (%)
|
3 (3) n = 101
|
1 (2) n = 60
|
2 (5) n = 41
|
0.5645
|
Chronic kidney disease, no. (%)
|
6 (6) n = 101
|
5 (8) n = 60
|
1 (2) n = 41
|
0.3967
|
No underlying disease, no. (%)
|
19 (19) n = 101
|
14 (23) n = 60
|
4 (10) n = 41
|
0.1124
|
Pre-ECMO
| | | | |
PaO2/FiO2, median (IQR)
|
74.2 (61–109) n = 93
|
82.7 (63.1–121.7) n = 54
|
72.3 (60.3–86.7) n = 39
|
0.1818
|
PaO2, median (IQR)—mmHg
|
81.8 (70.3–96.4) n = 101
|
82.2 (71.5–94.8) n = 60
|
81 (69.3–96.5) n = 41
|
0.6332
|
PaCO2, median (IQR)—mmHg
|
47.8 (41.9–56.3) n = 101
|
49.5 (42.6–55) n = 60
|
45.8 (40.9–56.3) n = 41
|
0.2715
|
pH, median (IQR)—mmHg
|
7.4 (7.4–7.5) n = 101
|
7.4 (7.4–7.5) n = 60
|
7.4 (7.4–7.5) n = 41
|
0.841
|
BE, median (IQR)—mmol/L
|
6.7 (3.9–9.1) n = 101
|
7.1 (4.2–9.3) n = 60
|
5.7 (2.7–8.9) n = 41
|
0.354
|
Prone positioning, no. (%)
|
101 (100) n = 101
|
60 (100) n = 60
|
41 (100) n = 41
|
1
|
iNO, no. (%)
|
22 (21) n = 101
|
10 (17) n = 60
|
12 (29) n = 41
|
0.4812
|
Tracheostomy, no. (%)
|
5 (6)
|
2 (4)
|
3 (8)
|
.
|
Ventilation pre-ECMO day 0
| |
PEEP, mean (SD)—cmH2O
|
13 (± 3) n = 94
|
13 (± 4) n = 55
|
13 (± 3) n = 39
|
0.6673
|
Tidal volume, mean (SD)—ml
|
443 (± 149) n = 94
|
442 (± 172) n = 55
|
443 (± 110) n = 39
|
0.9854
|
Tidal volume, mean (SD)—ml/kg IBW
|
6 (± 2) n = 89
|
6 (± 3) n = 54
|
7 (± 2) n = 39
|
0.7108
|
Respiratory rate, mean (SD)—/min
|
22 (± 5) n = 94
|
22 (± 5) n = 55
|
23 (± 5) n = 39
|
0.3307
|
Plateau pressure, mean (SD)—cmH2O
|
31 (± 5) n = 94
|
31 (± 6) n = 55
|
31 (± 5) n = 39
|
0.5097
|
Peak pressure, mean (SD)—cmH2O
|
31 (± 5) n = 94
|
31 (± 6) n = 55
|
31 (± 5) n = 39
|
0.5097
|
Driving pressure, mean (SD)—cmH2O
|
18 (± 5) n = 94
|
18 (± 6) n = 55
|
19 (± 4) n = 39
|
0.3251
|
Mechanical power, median (IQR)—J/min
|
30 (22–38) n = 94
|
29 (21–38) n = 55
|
31 (24–37) n = 39
|
0.5142
|