Table 2. Intensive care scores and variables of mechanical ventilation on ICU admission (total study population and stratified for extracorporeal membrane oxygenation [ECMO] therapy)*.
| Total n = 116 |
no ECMO n = 55 |
ECMO n = 61 |
p value | |
|---|---|---|---|---|
| APACHE-II | 21.5 (20.1–23.1) | 19.5 (17.4–21.8) | 23.5 (21.7–25.4) | 0.006 |
| SAPS-II | 41.9 (38.6–45.2) | 44.0 (38.6–49.5) | 40.0 (36.0–44.0) | 0.301 |
| Predictive mortality (%) (SAPS-II) | 33.7 (28.6–39.0) | 37.8 (29.3–46.2) | 30.1 (23.7–36.6) | 0.301 |
| SOFA | 11.2 (10.5–11.9) | 9.9 (8.7–11.1) | 12.4 (11.5–13.2) | 0.001 |
| paO2/FiO2 (mm Hg) | 112 (99–126) | 141 (118–163) | 87 (74–101) | <0.001 |
| PEEP (mbar) | 18 (17–19) | 16 (15–18) | 20 (18–21) | 0.001 |
| Plateau pressure (mbar) | 32 (31–34) | 31 (29–33) | 34 (32–36) | 0.048 |
| Tidal volume/ ideal body weight (mL/kg) | 5.7 (5.1–6.2) | 5.9 (4.9–6.9) | 5.6 (4.9–6.2) | 0.624 |
| Prone position | 55 (47%) | 25 (46%) | 29 (48%) | 0.921 |
| Inhalative nitric oxide (NO) | 32 (28%) | 10 (18%) | 22 (37%) | 0.086 |
| Inhalative iloprost | 13 (11%) | 5 (9%) | 8 (13%) | 0.389 |
*Values are reported as mean values (95% confidence interval) or as absolute values with percentage. APACHE, Acute Physiology And Chronic Health Evaluation; PEEP, Positive End Expiratory Pressure; SAPS, Simplified Acute Physiology Score; SOFA, Sequential Organ Failure Assessment