Table 3 The different values of pulse oximetry value of patients according to different hypoxemia conditions during the intubation procedure
Values of pulse oximetry | Mild hypoxemia (201–300 mmHg)b | ap-value | Moderate-to-severe hypoxemia (≤200 mmHg)b | ap-value | ||
|---|---|---|---|---|---|---|
NIV cohort | HCO cohort | NIV cohort | HCO cohort | |||
Procedure for oxygenation and ventilation | Non-invasive ventilation | High-flow nasal cannula oxygen | Non-invasive ventilation | High-flow nasal cannula oxygen | ||
Patients included in the analysis | 34 | 35 | 120 | 126 | ||
At the beginning of preoxygenation | 96 ± 2% | 95 ± 3% | 0.109 | 94 ± 5% | 93 ± 5% | 0.118 |
The lowest value during the intubation procedure | 79 ± 3% | 78 ± 2% | 0.107 | 77 ± 15% | 76 ± 12% | 0.084 |
At the end of preoxygenation | 98 ± 5% | 95 ± 8% | 0.067 | 96 ± 8% | 94 ± 8% | 0.052 |