Table 4 The outcome of the arterial blood gas analysis in both groups
D–R group (n = 29) | P–R group (n = 30) | Difference (95% CI) | P value | |
|---|---|---|---|---|
Baseline | ||||
pH | 7.42 ± 0.02 | 7.42 ± 0.03 | − 0.002 (− 0.013 to 0.009) | 0.722 |
PaO2 (mmHg) | 79.2 ± 4.43 | 80.33 ± 6.11 | − 1.12 (− 3.92 to 1.66) | 0.422 |
PaCO2 (mmHg) | 35.8 ± 3.30 | 35.70 ± 4.24 | 0.13 (− 1.86 to 2.11) | 0.898 |
At the end of the procedure | ||||
PH | 7.36 ± 0.02 | 7.34 ± 0.02 | 0.017 (0.006 to 0.029) | 0.003 |
PaO2 (mmHg) | 130.03 ± 4.99 | 125.70 ± 7.01 | 4.33 (1.15 to 7.52) | 0.008 |
PaCO2 (mmHg) | 41.52 ± 4.22 | 44.70 ± 5.31 | − 3.18 (− 5.68 to − 0.69) | 0.013 |
Hypercapnia, n (%) | 4 (13.8%) | 13 (43.3%) | 29.5% (7.8 to 51.2%) | 0.012 |