Table 2 Characteristics of block between three groups
BN group (n = 30) | BF group (n = 30) | BD group (n = 30) | P value | |
|---|---|---|---|---|
Time from injection to highest sensory level (min) | 6.45 ± 1.67 | 7.17 ± 1.45 | 6.28 ± 1.75 | 0.08 |
Time of two segment regression from the highest sensory level (min) | 69.33 ± 6.67 | 88.90 ± 12.85 | 149.00 ± 23.17 | < 0.001 |
Time for sensory regression to S1 from highest sensory level (min) | 241.83 ± 22.26 | 329.83 ± 44.10 | 560.53 ± 81.86 | < 0.001 |
Onset to Bromage 3 (min) | 5.55 ± 167 | 5.05 ± 1.81 | 4.80 ± 1.74 | 0.24 |
Regression to Bromage 0 (min) | 147.03 ± 33.05 | 185.56 ± 35.87 | 331.60 ± 73.96 | < 0.001 |
Time to rescue analgesia (min) | 221.83 ± 22.26 | 296.33 ± 44.83 | 496.63 ± 70.19 | < 0.001 |
NRS six hours after surgery | 6.30 ± 1.17 | 6.16 ± 1.44 | 1.90 ± 0.84 | < 0.001 |