Table I.
Physiologic variables and laboratory values of each model at baseline; variables are represented as means with standard deviations (SD)
| No AO | Zone 1 AO | |
|---|---|---|
| MAP, mm Hg | 77 (13.7) | 66.5 (17.9) |
| EtCO2, mm Hg | 36.6 (4.1) | 37.0 (5.6) |
| HR, bpm | 73.5 (18.2) | 84.5 (17.2) |
| ICP, mm Hg | 11.1 (5.6) | 7.8 (2.7) |
| BE, mmol/L | 10.3 (2.2) | 9.8 (2.5) |
| Ionized calcium, mmol/L | 1.3 (0.1) | 1.2 (0.3) |
| Na, mmol/L | 142 ± 3.4 | 141.8 ± 2.3 |
| K, mmol/L | 4.1 ± 0.2 | 4.2 ± 0.1 |
| Hct, %pcv | 28.9 (1.8) | 28.8 (2.5) |
| Hgb, g/dL | 9.8 (0.6) | 9.8 (0.8) |
| Glucose, mg/dL | 121.4 (20.0) | 136.2 (26.9) |
The groups were clinically similar at baseline.
EtCO2, end-tidal carbon dioxide; ICP, intracranial pressure; MAP, mean arterial pressure.