All patients n = 101 | ICU survivors n = 60 | ICU non-survivors n = 41 | p value | |
---|---|---|---|---|
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 |