Table 4.
Serial clinical and arterial blood gas parameters in acute hypoxic respiratory failure without acute respiratory distress syndrome group receiving noninvasive ventilation
| Non-ARDS (n=23) |
||||||
|---|---|---|---|---|---|---|
| Intubated (n=8) |
Nonintubated (n=15) |
|||||
| 0 h | 1 h | 4 h | 0 h | 1 h | 4 h | |
| HR (beats/min) | 117.87±15.04 | 109.75±10.81; P=0.009 | 108.75±12.23;P=0.003 | 126.20±16.18 | 120.13±14.29; P=0.0001 | 116±13.52; P=0.0001 |
| RR (breaths/min) | 38.87±5.22 | 33.50±4.37; P=0.003 | 33.25±4.89; P=0.0001 | 36.13±3.09 | 33.33±4.11; P=0.013 | 31.53±4.67; P=0.001 |
| pH | 7.36±0.03 | 7.35±0.03; P=0.43 | 7.32±0.03; P=0.08 | 7.37±0.03 | 7.38±0.04; P=0.28 | 7.36±0.03; P=0.64 |
| PCO2 (mmHg) | 35.62±2.97 | 33.87±4.15; P=0.13 | 34.37±4.37; P=0.31 | 33±7.54 | 32.45±4.99; P=0.60 | 32.93±5.56; P=0.97 |
| PO2 (mmHg) | 61.37±9.60 | 72.67±16.19; P=0.048 | 75.50±10.47; P=0.012 | 88.66±31.78 | 109.21±30.17; P=0.039 | 126.93±33.29; P=0.001 |
| IPAP (cmH2O) | 7.25±2.60 | 14.50±1.41; P=0.0001 | 16±1.06; P=0.0001 | 8.13±2.32 | 14±1.30; P=0.0001 | 15.73±1.03; P=0.0001 |
| EPAP (cmH2O) | 5±0.75 | 5±1.06; P=0.001 | 7.25±1.03; P=0.002 | 4.80±0.86 | 4.93±1.27; P=0.78 | 6.40±0.82; P=0.0001 |
| PaO2/FiO2 | 147.25±9.45 | 120.4±13.84; P=0.013 | 127.53±29.84; P=0.001 | 208.73±8.1 | 179.53±17.91; P=0.022 | 209.64±23.22; P=0.0001 |
HR: Heart rate, RR: Respiratory rate, PaO2/FiO2: Arterial oxygen pressure/fraction of inspired oxygen, PaCO2: Arterial carbon dioxide pressure, PO2: Arterial oxygen pressure, IPAP: Inspiratory pressure, EPAP: Expiratory pressure, ARDS: Acute respiratory distress syndrome