Variable

Bupivacaine Group (n = 33)

Ropivacaine Group (n = 33)

Saline Group

(n = 34)

P values

b/w bupivacaine & ropivacaine group

b/w bupivacaine & saline group

b/w ropivacaine & saline group

Time to extubation (h)

2.48 ± 0.42

2.74 ± 0.70

5.43 ± 0.71

0.30 (N S)

<0.001

<0.001

Postoperative Cumulative fentanyl dose in 24 h (μg/kg)

1.5 ± 0.41

1.56 ± 0.51

4.45 ± 0.56

1.00 (N S)

<0.001

<0.001