Table 1 Physiologic parameters.
| Â | Â | CPB | Â | |||
|---|---|---|---|---|---|---|
| Â | Baseline | 15 CPB | 15 arrest | 30 arrest | 75 CPB | 1 h post |
Weight (g) | 419 (7.7) | Â | Â | Â | Â | Â |
Hematocrit (%) | 41 (1) | 27 (2) | 28 (2.7) | 29 (2.1) | 29 (3) | 33 (2) |
Glucose (mg/dl) | 100 (14) | Â | Â | Â | 136 (12) | Â |
Temperature (°C) | 35.6 (0.6) | 34.8 (0.6) | 34.4 (0.5) | 34.2 (0.4) | 35.6 (0.7) | 36.9 (0.5) |
CPB flow (ml/min) | Â | 51 (5) | 65 (9) | 62 (11) | Â | Â |
MAP (mmHg) | 62 (7) | 61 (5) | 48 (5) | 46 (5) | 68 (15) | 75 (8) |
Arterial pH | 7.42 (0.02) | 7.42 (0.06) | 7.46 (0.06) | 7.43 (0.08) | 7.38 (0.08) | 7.38 (0.06) |
PaC0 2 (mmHg) | 40 (2) | 35 (5) | 34 (5) | 36 (5) | 42 (7) | 41 (5) |
Pa0 2 (mmHg) | 208 (33) | 366 (52) | 348 (69) | 325 (107) | 308 (68) | 285 (63) |
HCO 3 - (mmHg) | 26.1 (1.6) | 22.5 (1.4) | 23.9 (2.1) | 24.2 (1.8) | 25.6 (2.0) | 24.4 (3.0) |