Comparison Study of Lignocaine-Bupivacaine with Normal Saline and Lignocaine-Bupivacaine Along with Fentanyl in Supraclavicular Brachial Plexus Block in Mid Arm Surgeries

Abstract

Background and Objective: brachial plexus block by supraclavicular approach achieve good motor, sensory

& sympathetic blocked in mid arm surgeries. Several adjuvants have been added to enhance effect of local

anaesthetic agent in peripheral nerve block. We performed a prospective randomized study to compare

lignocaine-bupivacaine with normal saline and lignocaine-bupivacaine along with fentanyl for onset, quality

& duration of block as well as post-operative analgesia.

Method: Randomized controlled study was carried act among 50 patients of either sex aged 20-50 asa grade

1 & 2 undergoing mid arm surgeries. patient was randomly divided in two groups. Group 1: 20ml of 0.5%

bupivacaine + 10ml of 2% lignocaine + 1 ml of normal saline Group 2: 20ml of 0.5% bupivacaine + 10ml

of 2% lignocaine + 1 ml of fentanyl (50 mcg)

Time taken for onset of sensory & motor as well as complete duration of block were noted in both groups.

Any complication during procedure during surgery as well as post operatively were noted & treated.

Result: Addition of fentanyl (50 mcg) to bupivacaine + lignocaine in peripheral nerve block cause early

onset for sensory block.

Mean duration of sensory blockade 440+/-62 in group 1 while 635+/-84 in group 2. mean duration of

analgesia 400+/-68 in group1 while 685+/-90 in group 2

It suggests that duration of sensory block and analgesia was prolonged in group 2

Conclusion: The addition of small-dose fentanyl to lignocaine solution in brachial plexus block can increase

the success rate and prolong the duration of analgesia, [16]with early onset time of sensory blockade as

compared with that achieved by the same doses of local anaesthetics used in combination.