No Difference between Spinal Anesthesia with Hyperbaric Ropivacaine and Intravenous Dexmedetomidine Sedation with and without Intrathecal Fentanyl: A Randomized Noninferiority Trial
Table 2
Characteristics of the block.
Ropivacaine (n = 25)
Ropivacaine-fentanyl (n = 25)
value
Difference (95% CI)
Maximum block
T6 (T4–T6)
T4 (T3–T5)
0.190
Bispectral index (20 min after i.v. dexmedetomidine)
76.3 (5.5)
75.4 (7.7)
0.629
0.9 (−2.9 to 4.7)
Onset time (min)
To T10
5.3 (2.1)
5.6 (2.9)
0.699
−0.3 (−1.7 to 1.2)
To maximum sensory block
15.8 (5.3)
17.0 (6.5)
0.477
−1.2 (−4.6 to 2.2)
To Bromage 3 of motor block
10.0 (4.3)
10.2 (4.9)
0.879
−0.2 (−2.8 to 2.4)
Recovery time (min)
To two-dermatome regression of sensory block
70.4 (10.2)
71.2 (12.4)
0.804
−0.8 (−7.2 to 5.6)
To four-dermatome regression of sensory block
97.2 (17.2)
98.8 (17.6)
0.747
−1.6 (−11.5 to 8.3)
To T10
102.8 (19.0)
106.4 (26.3)
0.582
−3.6 (−16.7 to 9.5)
To L1
130.4 (20.7)
131.2 (22.4)
0.896
−0.8 (−13.1 to 11.5)
To Bromage 2 of motor block
108.0 (25.7)
97.2 (24.8)
0.136
10.8 (−3.5 to 25.1)
To Bromage 1 of motor block
128.8 (26.7)
117.2 (26.2)
0.128
11.6 (−3.4 to 26.6)
Time to first micturition (min)
430.2 (121.5)
444.8 (95.0)
0.638
−14.6 (−76.6 to 47.4)
Data are presented as mean (SD) or median (IQR) of patients. values are the results of unpaired t-test or Mann–Whitney U test between the groups.
