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Table 1 Intensive care scores and mechanical ventilation variables at the time of ICU admission

From: The modified SAVE score: predicting survival using urgent veno-arterial extracorporeal membrane oxygenation within 24 hours of arrival at the emergency department

  All patients (N = 154) Survivors (N = 54) Nonsurvivors (N = 100) p value
Age (yr) 51.7 (38.0–69.0) 43.1 (28.0–62.0) 56.4 (42.5–70.0) <0.001
Male (n, %) 111 (72.1) 35 (64.8) 76 (76) 0.103
Charlson score 0.8 (0–1.0) 0.6 (0–1.0) 1.0 (0–1.0) 0.18
Body mass index >30 kg/m2 (n, %) 23 (14.9) 7 (13.0) 16 (16.0) 0.79
Immunocompromised (n, %) 19 (12.3) 5 (9.3) 14 (14.0) 0.55
Pre-ECMO blood gases
 pH 7.11 (6.97–7.24) 7.20 (7.07–7.31) 7.06 (6.92–7.18) <0.001
 PaO2/FiO2 (mmHg) 144.9 (60.0–209.0) 146.7 (62.0–190.0) 144.0 (52.5–212.5) 0.21
 PaCO2 (mmHg) 47.3 (32.0–59.0) 40.1 (31.0–51.0) 51.3 (32.5–67.5) 0.007
 HCO3 - (mmol/L) 13.7 (10.2–17.7) 15.6 (13.2–18.4) 12.7 (9.1–16.6) 0.001
Mechanical ventilation
 Plateau pressure (cmH2O) 29.5 (27.0–32.0) 28.5 (26.0–30.0) 30.0 (27.0–33.0) 0.06
Laboratory parameters
 Lactate (mg/dL) 97.4 (56.0–125.1) 64.9 (40.0–75.0) 115.2 (75.3–144.4) <0.001
 Hct (%) 39.4 (35.0–45.0) 39.6 (35.7–44.2) 39.3 (34.3–45.4) 0.93
Platelet count (× 103/μL) 196.1 (147.0–242.0) 216.8 (153.0–280.0) 184.9 (124.5–224.0) 0.036
 Creatinine (mg/dL) 1.97 (1.09–1.95) 1.75 (0.98–1.90) 2.09 (1.14–2.06) 0.06
 Bilirubin (mg/dL) 1.02 (0.50–0.91) 0.80 (0.50–0.81) 1.13 (0.50–0.93) 0.09
 CRP 3.25 (0.31–2.15) 2.52 (0.22–1.21) 3.65 (0.33–3.28) 0.06
Vasopressors before ECMO (n, %) 134 (87.0) 26 (48.1) 81 (81.0) 0.21
Cardiac arrest before ECMO
 IHCA (n, %) 62 (40.3) 18 (33.3) 44 (44.0) 0.09
 OHCA (n, %) 53 (34.4) 12 (22.2) 41 (41.0) 0.031
SOFA score 9.8 (7.0–13.0) 8.7 (6.0–12.0) 10.5 (8.0–13.0) 0.004
SAVE score –6.5 (–10.0– –3.0) –3.2 (–7.0–2.0) –8.3 (–11.0– –5.0) <0.001
  1. CRP C-reactive protein, ECMO extracorporeal membrane oxygenation, IHCA in-hospital cardiac arrest, OHCA out-of-hospital cardiac arrest, SAVE score Survival After Veno-arterial ECMO score, SOFA score Sequential Organ Failure Assessment score, V-A mode veno-arterial mode, V-V mode veno-venous mode