Research Article
Comparison of Mask Oxygen Therapy and High-Flow Oxygen Therapy after Cardiopulmonary Bypass in Obese Patients
Table 3
Postoperative respiratory characteristics, physical examination findings, and atelectasis scores of groups.
| | | Group | value | | Mask O2 (n = 50) | High-flow O2 (n = 50) |
| | Postoperative 4th hour | | | | | PaO2 | 104.3 ± 5.6 | 112.3 ± 8.8 | <0.001 | | SpO2 | 96.8 ± 1.3 | 98.0 ± 0.7 | <0.001 | | PaCO2 | 43.1 ± 2.8 | 41.2 ± 2.1 | <0.001 | | Heart rate (beats/min) | 105.7 ± 8.0 | 98.4 ± 3.3 | <0.001 | | Mean arterial pressure (mmHg) | 94.5 ± 3.3 | 98.0 ± 2.2 | <0.001 | | Respiratory rate (breaths/min) | 21.6 ± 1.6 | 20.2 ± 0.8 | <0.001 | | Atelectasis score | 1 ± 0 | 1 ± 0 | 1.000 | | Postoperative 12th hour | | | | | PaO2 | 96.2 ± 7.4 | 106.9 ± 7.5 | <0.001 | | SpO2 | 95.7 ± 1.4 | 97.5 ± 1.1 | <0.001 | | PaCO2 | 43.7 ± 1.9 | 41.2 ± 2.1 | <0.001 | | Heart rate (beats/min) | 99.3 ± 6.1 | 96.4 ± 3.3 | 0.009 | | Mean arterial pressure (mmHg) | 96.1 ± 3.2 | 98.0 ± 2.2 | 0.001 | | Respiratory rate (breaths/min) | 20.1 ± 1.9 | 20.0 ± 0.9 | 0.845 | | Atelectasis score | 1.7 ± 0.5 | 1.4 ± 0.5 | 0.004 | | Postoperative 24th hour | | | | | PaO2 | 96.6 ± 6.7 | 100.0 ± 4.5 | 0.004 | | SpO2 | 95.7 ± 1.3 | 97.4 ± 4.3 | 0.001 | | PaCO2 | 43.5 ± 1.8 | 40.7 ± 2.2 | <0.001 | | Heart rate (beats/min) | 100.7 ± 4.4 | 97.5 ± 4.9 | 0.001 | | Mean arterial pressure (mmHg) | 96.6 ± 2.5 | 97.7 ± 6.5 | 0.277 | | Respiratory rate (breaths/min) | 19.9 ± 1.7 | 19.9 ± 0.8 | 0.697 | | Atelectasis score | 2.2 ± 0.5 | 1.7 ± 0.7 | <0.001 | | Postoperative 36th hour | | | | | PaO2 | 97.1 ± 6.3 | 104.9 ± 5.9 | <0.001 | | SpO2 | 95.8 ± 1.2 | 97.5 ± 1.2 | <0.001 | | PaCO2 | 43.3 ± 1.6 | 39.3 ± 2.8 | <0.001 | | Heart rate (beats/min) | 100.6 ± 4.5 | 96.2 ± 4.3 | <0.001 | | Mean arterial pressure (mmHg) | 96.7 ± 2.5 | 95.4 ± 4.9 | 0.119 | | Respiratory rate (breaths/min) | 19.6 ± 1.2 | 19.4 ± 0.9 | 0.322 | | Atelectasis score | 2.2 ± 0.5 | 1.4 ± 0.5 | <0.001 | | Postoperative 48th hour | | | | | PaO2 | 99.4 ± 7.1 | 106.0 ± 6.9 | <0.001 | | SpO2 | 95.7 ± 1.3 | 97.5 ± 1.2 | <0.001 | | PaCO2 | 42.3 ± 2.2 | 37.9 ± 2.6 | <0.001 | | Heart rate (beats/min) | 94.7 ± 4.6 | 95.1 ± 3.5 | 0.612 | | Mean arterial pressure (mmHg) | 96.8 ± 2.4 | 97.0 ± 2.2 | 0.219 | | Respiratory rate (breaths/min) | 19.5 ± 1.1 | 19.3 ± 0.9 | 0.451 | | Atelectasis score | 1.7 ± 0.4 | 1.3 ± 0.5 | <0.001 |
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Mean ± standard deviation; PaO 2: arterial pressure of oxygen; SpO 2: peripheral oxygen saturation; PaCO 2: arterial partial pressure of carbon dioxide; min: minutes. |
