2.
4组患儿神经阻滞情况比较
Data of brachial plexus nerve block in the 4 groups (n=20, Mean±SD)
| Group | Finish time (min) | Onset time (min) | Duration (min) | Awakening time (min) |
| *P < 0.05 vs group C,#P < 0.05 vs group D1. | ||||
| C | 7.0±0.8 | 11.5±2.1 | 212.3±28.2 | 27.5±4.1 |
| D1 | 7.2±0.9 | 8.1±1.2 | 286.5±31.3 | 19.1±3.2 |
| D2 | 6.6±0.7 | 7.3±0.9* | 325.2±40.7* | 12.6±2.9* |
| D3 | 6.8±0.8 | 5.5±0.8*# | 386.7±51.6*# | 10.5±2.8*# |