Table 3.
Hemodynamic and autoregulation data for each perioperative perioda
| Dissection | Anhepatic | Early Reperfusion | Reperfusion | |
|---|---|---|---|---|
| Duration (min) | 144±89 (70 to 219) | 143±32 (117 to 170) | 30 | 120±32 (94 to 147) |
| Mean arterial pressure (mmHg) | 86±10 (79 to 94) | 87±9 (80 to 94) | 84±10 (76 to 91) | 83± 8 (76 to 89) |
| Cardiac index (L·min−1·m−2) | 4.3±2.0 (2.7 to 5.9) | 3.3±1.2 (2.4 to 4.3) | 4.6±1.3 (3.6 to 5.5) | 4.0±1.1 (3.2 to 4.9) |
| Systemic vascular resistance (mmHg·m2 min L−1) | 1546.7±786.3 (942.2 to 2151.1) | 2065.2±838.6 (1420.6 to 2709.8) | 1358.1±621.7 (880.2±1836.0) | 1421.7±733.1 (858.1 to 1985.2) |
| CBF velocity (cm/sec) | 26.3±8.0 (20.2 to 32.5) | 30.5±7.4 (24.8 to 36.2) | 33.4±9.6 (26.0 to 40.8) | 34.3±8.1 (28.1 to 40.5) |
| Mx | 0.04±0.09 (−0.03±0.12) | 0.20±0.17 (0.07 to 0.34) | 0.13±0.21 (−0.04 to 0.31) | 0.21±0.10 (0.11±0.30) |
| COx | 0.15±0.09 (0.07 to 0.22) | 0.21±0.13 (0.11 to 0.31) | 0.08±0.13 (−0.02 to 0.18) | 0.17±0.11 (0.09±0.26 |
| rScO2% | 49±20 (34 to 65) | 55±20 (39 to 70) | 55±22 (38±72) | 55±22 (38 to 72) |
CBF, cerebral blood flow; Mx, mean velocity index or the correlation coefficient between CBF velocity and blood pressure; COx, cerebral oximetry index or the correlation between cerebral oximetry and blood pressure; rScO2%, regional cerebral oxygen saturation.
a
All values are given as means±SD (range). No significant differences were present between periods for any variable.