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Table 3 Respiratory variables

From: Increased permeability-oedema and atelectasis in pulmonary dysfunction after trauma and surgery: a prospective cohort study

  Thoracic trauma Oesphageal surgery Abdominal surgery Bone surgery P
  n = 5 n = 8 n = 6 n = 4  
PLI (×10-3.min-1) 26 (12–29) 12 (6–38) 49 (20–106) 71 (16–171) 0.073
PLI >14.1 (x10-3.min-1) 3 (60) 3 (37) 5 (83) 4 (100)a 0.050
EVLW (ml.kg-1) 3.4 (2.3–7.6) 5.6 (2.9–11.6) 6.0 (3.5–10.3) 6.0 (2.9–8.7) 0.433
EVLW >7 (ml.kg-1) 1 (20) 2 (25) 2 (33) 2 (50) 0.861
PaO2 (mmHg) 121 (57–147)1 140 (97–211) 176 (156–234) 192 (176–229)a 0.004
PaCO2 (mmHg) 45 (22–56) 35 (27–41) 33 (26–36) 37 (31–38) 0.209
FIO2 (%) 70 (40–88) 41 (40–59) 40 (39–49) 42 (40–48) 0.230
PaO2/FIO2 173 (78–359)2 328 (188–515) 439 (390–510) 458 (414–515)b 0.003
SaO2 (%) 98 (92–98) 98 (97–99) 98 (98–99) 98 (98–99) 0.186
Qs/Qt (%) 27 (21–57)3 15 (6–40) 13 (8–18) 16 (7–21) 0.022
RR (/min) 19 (15–26)4 14 (11–16) 14 (11–16) 15 (11–19) 0.045
Tidal volume (ml.kg-1) 6.7 (4.4–8.8) 7.3 (6.2–9.3) 7.3 (6.3–8.9) 7.9 (7.5–9.8) 0.327
Plateau pressure (cm H2O)      
  28 (20–34)3 16 (12–22) 15 (13–19) 16 (15–17) 0.015
PEEP (cm H2O) 12 (11–16)3 6 (4–8) 5 (4–6) 7.5 (6–9) 0.002
Compliance tot.,resp.,dyn.,      
ml.cm-1 H2O 31 (19–93) 59 (46–97) 62 (32–76) 66 (57–108) 0.296
Quadrants with densities      
  1 (0–4) 1 (0–2) 0 (0–2) 1 (0–1) 0.456
Radiographic atelectasis      
  3 (60) 5 (62) 1 (17) 1 (25) 0.257
Lung injury score 2.2 (1.5–3.5)3 0.7 (0.5–1.7) 0.5 (0.2–0.7) 0.7 (0.5–1.0) 0.015
  1. PLI, pulmonary leak index; EVLW, extravascular lung water; PO2/PCO2, partial pressure of O2 or CO2; FIO2, inspiratory O2 fraction; SO2, O2 saturation (a = arterial); Qs/Qt, venous admixture; RR, respiratory rate; PEEP, positive end-expiratory pressure; tot. resp. dyn. total respiratory dynamic. Exact P if <0.05. Versus surgical groups: 1P = 0.007, 2P = 0.004; 3P ≤ 0.001; 4P = 0.004; among surgical groups aP = 0.019; bP = 0.020.