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Table 2 Comparison of duration of analgesia, total rescue analgesic doses administered, Ramsay sedation score, patient satisfaction scores, and bradycardia in both groups

From: A prospective, randomized controlled, double-blinded study comparing dexmedetomidine and clonidine as an adjuvant to ropivacaine in femoral nerve block for postoperative analgesia in patients undergoing total knee arthroplasty

Variables

Group 1

Group 2

p-value

Duration of analgesia (hrs)

18.55 ± 2.935

95% CI [17.642–19.458]

12.00 ± 2.64

95% CI [11.18–12.82]

< 0.001

Total rescue analgesia required

1.48 ± 1.037

95% CI [1.1608–1.7992]

3.95 ± 0.714

95% CI [3.73–4.17]

< 0.001

Ramsay sedation score

   

 30 min

2.7 ± 0.464

2.1 ± 0.304

< 0.001

 60 min

2.4 ± 0.496

1.83 ± 0.385

< 0.001

 120 min

1.8 ± 0.405

1 ± 0

< 0.001 NA

 240 min

1 ± 0

1 ± 0

 

Satisfaction scores

1.25 ± 0.439

2 ± 0.506

< 0.001

Bradycardia (Y/N)

3/37

0/40

0.2405