Open Access
Table 2
Blood gas analysis at the beginning and the end of the circulatory arrest.
| Variables | ABG at the beginning of circulatory arrest |
ABG at the end of circulatory arrest |
|||||||
|---|---|---|---|---|---|---|---|---|---|
| Alpha stat | pH stat | Alpha stat | pH stat | ||||||
| FiO2 (%) | 92.7 (± 9.6) | ||||||||
| pH | 7.31 (±0.09) | 7.56 (±0.09) | 7.51 (±0.14)* | 7.79 (±0.16)* | |||||
| PaCO2 (mmHg) | 43.2 (±9.9) | 19.5 (±4.7) | 23.4 (±11.9)* | 11.3 (±5.8)* | |||||
| PaO2 (mmHg) | 735 (±74) | 602 (±124) | 692 (±187)* | 612 (±161)* | |||||
| SaO2 (%) | 99.9 (±0.16) | 99.9 (±0.5) | |||||||
| HCO3- (mmol/L) | 20.9 (±2.9) | 19.8 (±3.9) | |||||||
| Excess Base (mmol/L) | −3.5 (±5.8) | −4.5 (±3.9) | |||||||
| Lactate (mmol/L) | 3.3 (±1.0) | 3.4 (±0.8) | |||||||
| Sodium (mmol/L) | 139 (±3.0) | 137 (±2.9)** | |||||||
| Chloride (mmol/L) | 112 (±3.5) | 114 (±3.5) | |||||||
| Potassium (mmol/L) | 4.5 (±0.8) | 4.7 (±0.7) | |||||||
| Calcium (mmol/L) | 1.15 (±0.04) | 1.13 (±0.07)** | |||||||
| Strong ion difference (mmol/L) | 31.6 (±4.4) | 28.7 (±4.3)** | |||||||
| Hemoglobin (g/dL) | 9.7 (±1.0) | 9.6 (±1.0) | |||||||
Results are expressed in mean (±SD). *p < 0.0001 compared to initial value. **p < 0.05 compared to initial value. PaO2: arterial partial pressure of O2; PaCO2: arterial partial pressure of CO2; SaO2: arterial oxygen saturation.
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