Table 3.
Umbilical Arterial Blood Gas Analysis
| Blood Gas Parameters | Final Enrolled (n= 418) | NOIA (n=246) | OIA (n= 145) | GA (n=27) |
|---|---|---|---|---|
| pH (mean ± SD) | 7.34±0.04 | 7.34±0.03 | 7.34±0.04 | 7.33±0.03 |
| pCO2(mean ± SD, mmHg) | 47.38±6.56 | 47.03±6.53 | 47.90±6.78 | 48.18±5.27 |
| pO2(mean ± SD, mmHg) | 21.92±6.66 | 21.47±6.01 | 21.93±7.24 | 25.54±7.31 |
| Hct (mean ± SD, %) | 42.13±4. 06 | 41.82±3.98 | 42.45±4.22 | 43.3±3.67 |
| HCO3− (mean ± SD, mmol/L) | 24.43±2.15 | 24.28±2.03 | 24.75±2.37 | 24.11±1.84 |
| Na+(mean ± SD, mmol/L) | 135.75±2.20 | 135.61±2.12 | 135.90±2.37 | 136.38±1.76 |
| K+(mean ± SD, mmol/L) | 4.18±0.54 | 4.19±0.57 | 4.19±0.48 | 3.97±0.50 |
| Ca+(mean ± SD, mmol/L) | 1.66±5.33 | 1.38±0.09 | 1.47±0.131 | 1.43±0.31 |
| Cl− (mean ± SD, mmol/L) | 107.30±1.60 | 107.35±1.62 | 107.18±1.62 | 107.57±1.18 |
| Glu (mean ± SD, mmol/L) | 3.73±0.57 | 3.76±1.62 | 3.68±0.57 | 3.78±0.65 |
| Lac (mean ± SD, mmol/L) | 2.20±0.52 | 2.22±0.51 | 2.20±0.56 | 2.03±0.30 |
| tHb (mean ± SD, mmol/L) | 14.92±1.41 | 14.84±1.42 | 14.99±1.42 | 15.34±1.15 |
| SO2 (mean ± SD, %) | 61.85±16.90 | 51.82±14.47 | 61.85±16.90 | 59.48±15.74 |
| CH+(mean ± SD, nmol/L) | 45.72±3.51 | 45.48±3.48 | 45.91±3.60 | 46.72±2.86 |
| BE (mean ± SD, mmol/L) | −1.31±1.59 | −1.35±1.49 | −1.18±1.80 | −1.58±1.40 |
Abbreviations: NOIA, non-oxygen-inhaled intrathecal anesthesia; OIA, oxygen-inhaled intrathecal anesthesia; GA, general anesthesia.