表 2.
两组患者不同时点的动脉血气分析：PaO2, PaCO2, cSO2, CSA的比较
Arterial blood gas analysis at different time points between the two groups (Mean±SD)
| Variable | HF group (n=28) | M group (n=28) | Statistic | P | |||||
| T1 | T2 | T3 | T1 | T2 | T3 | ||||
| HF: High-flow nasal oxygenation; M: Traditional mask; PaO2: Arterial partial pressure of oxygen; PaCO2: Arterial partial pressure of carbon dioxide; cSO2: Arterial oxygen saturation; CSA: Cross sectional area; aP < 0.05 vs T1 time point, bP < 0.05 vs T2 time point, cP < 0.05 vs T3, d, eP < 0.05 vs M group. | |||||||||
| PaO2 | 77.7±6.4 | 546.6±79.0a | 295.0±130.3bc | 80.9±5.8 | 386.2±38.4a | 85.8±54.1c | 118.108 | 0.000d | |
| PaCO2 | 40.9±9.4 | 40.8±5.5 | 60.7±7.0bc | 38.0±3.6 | 38.6±3.6 | 58.4±7.9bc | 3.138 | 0.082 | |
| cSO2 | 95.3±1.3 | 100.0±0.0a | 96.9±6.2c | 96.0±1.3 | 100.0±0.0a | 90.4±7.0bc | 9.511 | 0.003e | |
| CSA | 3.3±0.4 | 3.4±0.4 | 3.4±0.5 | 3.3±0.5 | 3.4±0.6 | 3.4±0.5 | 0.022 | 0.883 | |