Table 2.
Arterial gas analysis parameters.
| Group C (n = 33) | Group C median (IQR) | Group R (n = 33) | Group R median (IQR) | p-value | |
|---|---|---|---|---|---|
| PaO2 | |||||
| After induction (T1) | 153.97 ± 17.72 | 152.00 (21.00) | 153.67 ± 21.13 | 153.00 (27.00) | 0.950 |
| 30 min (T2) | 167.88 ± 27.3 | 160.00 (27.00) | 203.24 ± 24.3 | 200.00 (40.00) | < 0.001 |
| PACU (T4) | 86.48 ± 8.31 | 86.00 (11.00) | 87.64 ± 8.87 | 89.00 (10.21) | 0.583 |
| PaCO2 | |||||
| After induction (T1) | 36.27 ± 5.55 | 36.00 (6.00) | 36.36 ± 4.81 | 36.00 (6.00) | 0.944 |
| 30 min (T2) | 40.39 ± 5.54 | 40.00 (8.00) | 40.98 ± 5.33 | 40.00 (7.00) | 0.660 |
| PACU (T4) | 34.3 ± 5.05 | 35.00 (7.00) | 34.15 ± 4.38 | 34.00 (4.00) | 0.897 |
| PaO2/FiO2 | |||||
| After induction (T1) | 384.45 ± 43.56 | 380.00 (52.05) | 384.21± 52.74 | 382.50 (67.50) | 0.984 |
| 30 min (T2) | 422.73 ± 68.64 | 402.50 (75.00) | 508.11 ± 60.74 | 500.00 (100.00) | < 0.001 |
| PACU (T4) | 411.47 ± 39.9 | 409.52 (52.38) | 417.33 ± 42.17 | 423.80 (48.62) | 0.564 |
| P(A-a)O2 | |||||
| After induction (T1) | 85.83 ± 18.64 | 89.45 (27.25) | 85.93 ± 23.37 | 87.95 (30.25) | 0.984 |
| 30 min (T2) | 64.79 ± 27.85 | 66.45 (27.00) | 30.84 ± 27.09 | 40.70 (43.00) | < 0.001 |
| PACU (T4) | 24.57 ± 29.02 | 15.98 (16.75) | 23.5 ± 25.38 | 19.73 (13.70) | 0.913 |
PaO2, Partial Pressure of Oxygen; PaCO2, Partial Pressure of Carbon-di oxide; FiO2, Fraction of Inspired Oxygen; P(A-a)O2, Alveolar-Arterial Gradient of Oxygen, IQR, Inter Quartile Range. PACU, Postanesthesia Care Unit.