Table 2.
The increases of catecholamine value, intrapulmonary shunt fraction and the concentration of dexmedetomidine in all groups.
| C group (n = 24) | E group (n = 24) | V group (n = 23) | P | |
|---|---|---|---|---|
| The increase of catecholamine value (%) | 160.7 ± 29.8 | 136.7 ± 21.4 | 140.7 ± 19.0 | 0.025 |
| The value at baseline (ng/L) | 123.8 ± 21.7 | 125.6 ± 15.4 | 128.2 ± 18.3 | 0.82 |
| The value at 1 min after intubation (ng/L) | 193.3 ± 15.9 | 169.0 ± 10.1 | 178.1 ± 16.7 | <0.001 |
| Intrapulmonary shunt fraction (%) | ||||
| TLV-10 | 6.6 ± 1.3 | 7.4 ± 2 | 6.8 ± 1.4 | 0.446 |
| OLV-20 | 27.2 ± 4.2 | 26.4 ± 2.2 | 26.3 ± 1.7 | 0.663 |
| Concentration of dexmedetomidine (ng/ml) | ||||
| Epidural-15 | 0.00 | 0.46 ± 0.12 | 0.44 ± 0.14 | 0.653 |
| TLV-10 | 0.0 | 0.41 ± 0.13 | 0.39 ± 0.11 | 0.533 |
| OLV-20 | 0.0 | 0.26 ± 0.11 | 0.27 ± 0.10 | 0.808 |
Epidural-15, 15 min after epidural or intravenous infusion of dexmedetomidine; TLV-10, 10 min after two-lung ventilation; OLV-20, 20 min after one-lung ventilation.