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Table 2 Nerve block characteristics and incidence of hemodynamic side-effects. Values are mean ± SD or number (proportion)

From: Low-dose dexmedetomidine as a perineural adjuvant for postoperative analgesia: a randomized controlled trial

  Control group
(n = 27)
Dexmedetomidine group
(n = 28)
P value
Block performance time (min) 4 ± 1 4 ± 1 0.939
Onset of sensory block (min) 21 ± 4 16 ± 3 0.000
Onset of motor block (min) 25 ± 3 19 ± 4 0.000
Duration of sensory block (min) 571 ± 90 783 ± 108 0.000
Duration of motor block (min) 612 ± 90 865 ± 104 0.000
Duration of analgesia (min) 661 ± 83 887 ± 92 0.000
Cumulative tramadol consumption during 24 h after surgery (mg) 33 ± 44 20 ± 37 0.215
Number of patients requiring tramadol during 24 h after surgery 12 (44%) 7 (25%) 0.162
Incidence of PONV 3 (11%) 6 (21%) 0.469
Incidence of hypotension 1 (4%) 0 0.491