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Table 2 Characteristics of subarachanoid block

From: A study to compare the efficacy of intrathecal dexmedetomidine versus nalbuphine as an adjuvant to 0.5% hyperbaric bupivacaine for postoperative analgesia in lower abdominal surgeries

 

Group NB, N = 40

Group DB, N = 40

P value

Onset of sensory block (min)

3.07 ± 1.45

2.50 ± 0.99

0.04 (S)

Distribution of the highest level of sensory block

T4–T8

T4–T8

0.05 (S)

Time to achieve the highest level of sensory block (min)

6.77 ± 1.71

5.98 ± 1.19

0.03 (S)

Time for two-segment regression (min)

127.25 ± 24.30

151.82 ± 66.02

0.029 (S)

Duration of analgesia (min)

295.5 ± 88.01

419.25 ± 116.7

0.000 (S)

Onset of motor block(min)

5.85 ± 1.48

5.01 ± 0.811

0.001 (S)

Duration of motor block (min)

275.62 ± 84.22

331.37 ± 82.16

0.03 (S)

Ramsay sedation score

2

2

0.334 (NS)

  1. Values are expressed as mean ± SD and n (%). P < 0.05 or 0.01 (significant), P < 0.001 (highly significant)
  2. S significant, NS not significant