scholarly journals A prospective randomised study of adjuvants for supraclavicular brachial plexus block: Clonidine vs Dexamethasone

2021 ◽  
Vol 8 (4) ◽  
pp. 511-514
Author(s):  
Akanksha Aggarwal ◽  
Nimit Gandhi
Keyword(s):  
Brachial Plexus ◽  
Upper Limb ◽  
Local Anaesthetic ◽  
Motor Block ◽  
Brachial Plexus Block ◽  
Upper Limb Surgery ◽  
Supraclavicular Brachial Plexus Block ◽  
Group 2 ◽  
Plexus Block ◽  
Group 1

 Supraclavicular brachial plexus block is among foremost technique of regional anaesthesia administered during upper-limb surgery. Different adjuvants have been used with varied results for prolonging the sensory and motor blockade. Dexamethasone and Clonidine have been established as suitable adjuvants for blocks. Adding adjuvants to local anaesthetic drugs in nerve blocks has many benefits. We studied performance of dexamethasone or clonidine as additives to local anaesthetic in subclavian perivascular block as a part of upper limb surgery. Aim was to ascertain which of them is a better adjuvant. Study population was randomized to 2 groups of 50 patients each. Group 1 was given 5 ml of 2% lignocaine and 15 ml 0.5% bupivacaine with 8mg dexamethasone. Group 2 received 5ml 2% lignocaine and 15 ml 0.5% bupivacaine with 0.150 mg clonidine. Time to establishment of sensory & motor block, duration of analgesia and any adverse effects were observed. Statistical analysis was done with SPSS 13.0. Quantitative variables were assessed using student t test. Qualitative variables were analysed using Chi square test. P value < 0.05 was defined as significant. Onset of sensory blockade was at 7.23+4.24 in group 1 and 8.36+2.68 minutes in Group 2. Average time to motor block was at 8.48+3.22 minutes in Group 1 and 9.58+3.71 minutes in Group 2. Analgesia’s duration in Group 1 and Group 2 was 998.2+338.5 and 879.3+284.5 minutes respectively. No major adverse events were seen in either group. Performance of dexamethasone was similar to clonidine as adjunct to local anaesthetic in subclavian perivascular approach of brachial plexus block. However, it has faster sensory and motor blockade’s onset. Analgesia’s duration observed was found to be longer, though the difference was statistically insignificant.

scholarly journals EVALUATION OF ANALGESIC EFFICACY OF DEXMEDETOMIDINE AS AN ADJUVANT CO-ADMINISTERED WITH 0.75% ROPIVACAINE BY SUPRACLAVICULAR BRACHIAL PLEXUS BLOCK FOR UPPER LIMB SURGERY

2020 ◽  
pp. 25-27
Author(s):  
Bimal Kumar Hajra ◽  
Stuti Chakraborty ◽  
Keka Pandey ◽  
Debarshi Jana
Keyword(s):  
Brachial Plexus ◽  
Upper Extremity ◽  
Upper Limb ◽  
Motor Block ◽  
Brachial Plexus Block ◽  
Analgesic Efficacy ◽  
Cost Effective ◽  
Upper Limb Surgery ◽  
Supraclavicular Brachial Plexus Block ◽  
Plexus Block

INTRODUCTION Brachial plexus block is a regional anesthesia technique that is sometimes employed as an alternative or as an adjunct to general anesthesia for surgery of the upper extremity. This technique involves the injection of local anesthetic agents in close proximity to the brachial plexus, temporarily blocking the sensation and ability to move the upper extremity. OBJECTIVES To compare time of onset and duration of sensory and motor block between two groups. To compare peri-operative and post-operative analgesia between two groups MATERIAL AND METHOD Orthopaedic operation theatre, post-anaesthesia care unit, orthopaedic post- operative ward of Nil Ratan Sircar Medical College and Hospital. All the ASA physical status I and II patients of either sex, age between 18-60 years undergoing upper limb orthopaedic surgery under supraclavicular brachial plexus block. CONCLUSION Addition of Dexmedetomidine to ropivacaine in supraclavicular brachial plexus block significantly prolongs the duration of analgesia and motor block in patients undergoing upper limb surgeries and is a remarkably safe and cost effective method of providing post-operative analgesia.

scholarly journals Efficacy and Safety of Fentanyl as An Adjuvant with Bupivacaine and Lignocaine in Supraclavicular Brachial Plexus Block

2019 ◽  
Vol 17 (2) ◽  
pp. 31-35
Author(s):  
Sanjida Hasan ◽  
Ahmed Abu Nasar Chowdhury ◽  
Syeda Nafisa Khatoon ◽  
Md Harun OR Rashid ◽  
Md Rezaul Hoque Tipu ◽  
...  
Keyword(s):  
Brachial Plexus ◽  
Motor Block ◽  
Brachial Plexus Block ◽  
Efficacy And Safety ◽  
College Hospital ◽  
Analgesic Effects ◽  
Upper Limb Surgery ◽  
Supraclavicular Brachial Plexus Block ◽  
Supraclavicular Block ◽  
Plexus Block

Background: Adding narcotics to local anesthetic is very effective in prolonging the analgesic effects. The aim of this study is to evaluation the efficacy and safety of fentanyl as an adjuvant with bupivacaine-lignocaine in supraclavicular block. Methods: This analytical study was carried out in the department of anesthesiology in Chittagong Medical College Hospital in collaboration with the department of orthopedic surgery over a period of 22 months starting from January 2012 to December 2014. A total 130 adult patients of either sex with American Society of Anesthesiology (ASA) health status I-II were selected for upper limb surgery under supraclavicular brachial plexus block was randomly allocated in to two groups of 65 patients in each. Group- C was received Distilled water 2ml and Group-F was received fentanyl 2ml (100 g) in 38ml of bupivacaine and lignocaine with adrenaline (Total volume of 40ml). Results: The mean onset of sensory & motor block was 10.49±0.75 min & 9.41±0.76 min in group-C and 7.60±3.711min & 9.23±5.114min in group-F. The duration of analgesia in group-C was 3.81±0.88 hrs and in group-F was 8.62±1.747 hrs. Conclusion: There was significantly prolonged duration of analgesia and better onset of sensory and motor block in fentanyl group without any unwanted effects. Chatt Maa Shi Hosp Med Coll J; Vol.17 (2); Jul 2018; Page 31-35

scholarly journals Effects of Clonidine as an Adjuvant to Lidocaine with Epinephrine in Ultrasound Guided Axillary Brachial Plexus Block: A Randomised Controlled Trial

2021 ◽  
Vol 10 (18) ◽  
pp. 4181
Author(s):  
Anil Ranganath ◽  
Tomas Hitka ◽  
Gabriella Iohom
Keyword(s):  
Brachial Plexus ◽  
Normal Saline ◽  
Motor Block ◽  
Brachial Plexus Block ◽  
Onset Time ◽  
Ultrasound Guided ◽  
Axillary Brachial Plexus Block ◽  
Group 2 ◽  
Plexus Block ◽  
Group 1

This study evaluated the effects of adding adjuvant clonidine to lidocaine with epinephrine on the characteristics of ultrasound-guided axillary brachial plexus block (ABPB) for upper extremity surgery. Twenty-four patients were randomised to receive an ultrasound guided ABPB with 20 mL of lidocaine 2% with 1:200,000 epinephrine plus 2 mL of either normal saline 0.9% (Group 1) or a mixture of clonidine 1 µg/kg and normal saline 0.9% (Group 2). The outcome measures that were recorded were the overall onset time and the duration of sensory and motor block. The median (IQR) overall onset time of sensory and motor block was significantly shorter in Group 2 vs. Group 1 (5 (5–7.5) min vs. 10 (8.8–12.5) min; p < 0.001) and (5 (2.5–7.5) min vs. 7.5 (6.3–7.5) min; p = 0.001), respectively. The median (IQR) overall duration of sensory and motor block was significantly longer in Group 2 vs. Group 1 (225 (200–231) min vs. 168 (148–190) min; p < 0.001) and (225 (208–231) min vs. 168(148–186) min; p < 0.001), respectively. In ultrasound-guided ABPB, the addition of clonidine to lidocaine with epinephrine resulted in shorter onset time and prolonged duration of sensory and motor block.

scholarly journals Effects of local anaesthetic dilution on the characteristics of ultrasound guided axillary brachial plexus block: a randomised controlled study

2021 ◽  
Author(s):  
Anil Ranganath ◽  
Osman Ahmed ◽  
Gabriella Iohom
Keyword(s):  
Brachial Plexus ◽  
Local Anaesthetic ◽  
Brachial Plexus Block ◽  
Onset Time ◽  
Ultrasound Guided ◽  
Performance Time ◽  
Axillary Brachial Plexus Block ◽  
Group 2 ◽  
Plexus Block ◽  
Group 1

Aims: Ultrasound guidance has led to marked improvement in the success rate and characteristics of peripheral nerve blocks. However, effects of varying the volume or concentration of a fixed local anaesthetic dose on nerve block remains unclear. The purpose of our study was to evaluate whether at a fixed dose of lidocaine, altering the volume and concentration will have any effect on the onset time of ultrasound-guided axillary brachial plexus block.Material and methods: Twenty patients were randomised to receive an ultrasound-guided axillary brachial plexus block with either lidocaine 2% with epinephrine (20 ml, Group 2%) or lidocaine 1% with epinephrine (40 ml, Group 1%). The primary endpoint was block onset time. Secondary outcomes included duration of the block, performance time, number of needle passes, incidence of paraesthesia and vascular puncture.Results: The median [IQR] onset time of surgical anaesthesia was shorter in Group 1% when compared to Group 2% (6.25 [5-7.5] min vs 8.75 [7.5-10] min; p=0.03). The mean (SD) overall duration of surgical anaesthesia was significantly shorter in Group 1% compared to Group 2% (150.9±17.2 min vs 165.1±5.9 min; p=0.02). Group 1% had a shorter performance time with fewer needle passes. The incidence of vascular puncture and paraesthesia was similar in the two groups.Conclusion: Ultrasound-guided axillary brachial plexus blocks performed using a higher volume of lower concentration lidocaine was associated with shorter onset time and duration of surgical anaesthesia.

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