Abstract

OBJECTIVE:
To compare the effects of addition of Clonidine and Dexmedetomidine as an adjunct to Bupivacaine for Interscalene block with respect to onset and duration of sensory and motor block and duration of analgesia.
MATERIALS AND METHODS:
70 patients of ASA 1 &2 scheduled for various orthopaedic surgeries for upper limb under interscalene brachial plexus block were divided into two equal groups(n=35)in a randomised double blinded controlled study .
Group I received 0.5% Bupivacaine (20ml) +Dexmedetomidine(1mcg/kg).
Group II received 0.5% Dupivacaine (20ml) + Clonidine(1mcg/kg).
RESULTS:
The mean onset time of sensory & motor blockade was faster in Dexmedetomidine group. (3.54, 5.40 respectively). The duration of sensory & motor blockade was also prolonged in this group (p value 0.006; &

Key words: Interscalene Block ,Bupivacaine, Dexmedetomidine ,Clonidine, Sensory and Motor blockade.