Table 2 Characteristics of Sensory Block and Motor Block
Parameters | Group Rop8 (n = 30) | Group Rop10 (n = 30) | P-value | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dexmedetomidine dosage | Dexmedetomidine dosage | |||||||||||
4 µg (n = 3) | 5 µg (n = 10) | 6 µg (n = 10) | 7 µg (n = 5) | 8 µg (n = 2) | 1 µg (n = 3) | 2 µg (n = 6) | 3 µg (n = 7) | 4 µg (n = 8) | 5 µg (n = 5) | 6 µg (n = 1) | ||
Sensory block (to pinprick) | ||||||||||||
Highest sensory block (n, %) | ||||||||||||
T2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 (16.7) | 0 | 1 (12.5) | 0 | 0 | - |
T3 | 0 | 0 | 1 (10.0) | 0 | 0 | 0 | 0 | 0 | 1 (12.5) | 0 | 1 (100.0) | - |
T4 | 0 | 2 (20.0) | 3 (30.0) | 0 | 0 | 0 | 0 | 1 (14.3) | 2 (25.0) | 2 (40.0) | 0 | - |
T5 | 0 | 1 (10.0) | 2 (20.0) | 2 (40.0) | 1 (50.0) | 0 | 1 (16.7) | 1 (14.3) | 0 | 0 | 0 | - |
T6 | 0 | 1 (10.0) | 0 | 2 (40.0) | 1 (50.0) | 0 | 1 (16.7) | 1 (14.3) | 2 (25.0) | 2 (40.0) | 0 | - |
T7 | 0 | 0 | 0 | 1 (20.0) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - |
T8 | 1 (33.3) | 3 (30.0) | 0 | 0 | 0 | 2 (66.7) | 1 (16.7) | 1 (14.3) | 0 | 0 | 0 | - |
T9 | 0 | 1 (10.0) | 0 | 0 | 0 | 0 | 2 (33.3) | 1 (14.3) | 1 (12.5) | 0 | 0 | - |
T10 | 2 (66.7) | 2 (20.0) | 4 (40.0) | 0 | 0 | 1 (33.3) | 0 | 2 (28.6) | 1 (12.5) | 1 (20.0) | 0 | - |
Onset time to T10 (min) | 4.3 ± 2.8 | 4.3 ± 2.8 | 1 | |||||||||
Time to highest level (min) | 9.0 ± 2.1 | 8.6 ± 2.9 | 0.543 | |||||||||
Duration of sensory block (min) | 169.7 + 62.0 | 192.4 + 72.4 | 0.197 | |||||||||
Motor block | ||||||||||||
Bromage Score (n, %) | ||||||||||||
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - |
1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - |
2 | 1 (33.3) | 1 (11.1) | 1 (11.1) | 0 | 0 | 0 | 0 | 0 | 1 (12.5) | 0 | 0 | - |
3 | 2 (66.7) | 9 (88.9) | 9 (88.9) | 5 (100.0) | 2 (100.0) | 3 (100.0) | 6 (100.0) | 7 (100.0) | 7 (87.5) | 5 (100.0) | 1 (100.0) | - |
No. of patients with incomplete motor block (n, %) | 3 (10.0) | 1 (3.3) | 0.612 | |||||||||
Onset time to Bromage score = 1 (min) | 7.37 ± 6.27 | 3.93 ± 2.12 | 0.006* | |||||||||
Onset time to Bromage score = 2 (min) | 11.03 ± 8.16 | 7.10 ± 2.99 | 0.016* | |||||||||
Onset time to Bromage score = 3 (min) | 15.78 ± 8.34 | 14.24 ± 8.13 | 0.472 | |||||||||
Duration of motor block (min) | 343.6 ± 73.1 | 372.5 ± 78.4 | 0.145 | |||||||||