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Table 3 The different values of pulse oximetry value of patients according to different hypoxemia conditions during the intubation procedure

From: Comparison of hypoxemia, intubation procedure, and complications for non-invasive ventilation against high-flow nasal cannula oxygen therapy for patients with acute hypoxemic respiratory failure: a non-randomized retrospective analysis for effectiveness and safety (NIVaHIC-aHRF)

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
  1. Variables are reported as mean ± standard deviation (SD)
  2. The Mann-Whitney U-test was performed for statistical analysis
  3. aComparisons between cohorts
  4. bPartial pressure of arterial oxygen to fraction of inspired oxygen ratio
  5. A p-value of less than 0.05 was considered significant
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BMC Emergency Medicine

ISSN: 1471-227X

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