COMPARATIVE STUDY OF DIFFERENT DOSES OF DEXMEDETOMIDINE AS AN ADJUVANT TO INTRATHECAL HYPERBARIC BUPIVACAINE IN LOWER LIMB ORTHOPAEDIC SURGERIES

Abstract

Background: This study is aimed to different doses of Dexmedetomidine as an adjuvant to Intrathecal hyperbaric bupivacaine in lower limb orthopaedic surgeries

Methods: A prospective randomized double blind study was conducted with 90 consenting patients of ASA grade I and II, scheduled for lower limb Orthopaedic surgeries. Using the lottery method, the patients were randomly allotted into 3 groups, 30 patients in each group. Group I , Group II & Group III. 

Results: Post-operative VAS and total analgesic requirement in 24 hours were minimal in group C as compare to B group. All the patients achieved Bromage scale 3 motor block and there was dose dependent prolongation of motor block in B and C groups.

Conclusion: Supplementation of spinal Bupivacaine with Dexmedetomidine significantly prolonged both sensory and motor block compared with intrathecal Bupivacaine alone.

Keywords: Bupivacaine, Dexmedetomidine, Motor block.