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. 2014 Jan 27;14:18. doi: 10.1186/1471-230X-14-18

Table 3.

Respiratory parameters before and after paracentesis

  Before paracentesis Immediately after paracentesis p-value 2 hours after paracentesis p-value 6 hours after paracentesis p-value
PaO2, mmHg
82.5 (72.9-98.6)
90.1 (82.5-110.0)
0.001*
91.6 (76.1-103.2)
0.044*
87.9 (74.5-94.8)
0.645
PaCO2, mmHg
39.0 (31.0-51.3)
40.3 (31.6-45.3)
0.156
40.4 (31.7-48.6)
0.665
40.7 (32.0-47.8)
0.486
PaO2/FiO2, mmHg
220 (161–329)
278 (195–390)
0.001*
229 (167–354)
0.004*
226 (162–327)
0.050
FiO2, % (mechanically ventilated patients)
48 (40–64)
45 (35–60)
0.016*
45 (38–53)
0.004*
45 (40–55)
0.007*
PaO2/FiO2, mmHg (mechanically ventilated patients)
188 (136–233)
242 (184–284)
<0.001*
212 (163–266)
0.001*
201 (152–274)
0.078
Vt/(Pmax-PEEP), mL/cmH2O (mechanically ventilated patients)
30.1 (21.2-57.6)
35.6 (24.8-60.0)
0.032*
35.0 (23.8-61.1)
0.030*
35.6 (28.6-55.5)
0.062
Lung injury score (without x-ray) (mechanically ventilated patients) 6 (4–7) 5 (4–6) <0.001* 5 (4–7) 0.003* 6 (4–6) 0.012*

PaO2, partial arterial oxygen pressure; PaCO2, partial arterial carbon dioxide pressure; FiO2, fraction of inspired oxygen; Pmax, maximal inspiratory pressure; PEEP, positive end-expiratory pressure; Vt, tidal volume.

Data is presented as median (interquartile range). Tests are performed against the baseline values. p-values <0.05 are indicated with*.