From: Bispectral index-guided general anaesthesia in combination with interscalene block reduces desflurane consumption in arthroscopic shoulder surgery: a clinical comparison of bupivacaine versus levobupivacaine
Group L
Group B
Group C
p value
(n = 20)
Open eyes (min)
4.6 ± 2.4
4.0 ± 2.5*
6.2 ± 2.1
0.012
Tracheal extubation (min)
1.8 ± 1.3*
2.0 ± 1.8*
4.0 ± 1.8
<0.000