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Table 3 Respiratory parameters before and after paracentesis

From: Effects of paracentesis on hemodynamic parameters and respiratory function in critically ill patients

  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*
  1. 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.
  2. Data is presented as median (interquartile range). Tests are performed against the baseline values. p-values <0.05 are indicated with*.