Evaluation of varying doses of magnesium as an adjuvant to ropivacaine in supraclavicular brachial plexus block

Authors

DOI:

https://doi.org/10.3126/ajms.v15i7.65202

Keywords:

Magnesium adjuvant; Ultrasound-guided; Supraclavicular brachial plexus block; Peripheral nerve blockade; Ropivacaine; Rescue analgesic

Abstract

Background: Peripheral nerve blockade is a crucial component of comprehensive anesthetic care, providing effective analgesia with fewer side effects than opioids and other oral analgesics.

Aims and Objectives: This study investigated the effectiveness of a magnesium adjuvant in an ultrasound-guided supraclavicular brachial plexus block to determine the minimum dose required for the desired effects.

Materials and Methods: This prospective, double-blind, and randomized controlled study included 90 patients scheduled for elective upper limb orthosurgery at GTMCH. The 90 patients were divided into three groups: A, B, and C. Each group received 21.5 mL of the test drug, with A receiving ropivacaine and normal saline, B receiving ropivacaine and magnesium, and C receiving ropivacaine and magnesium.

Results: There was a significant difference in Group A between the onset of sensory and motor blockade in Groups B and C. There was a significant difference in Group A between the duration of sensory and motor blockade in Groups B and C, but no significant difference was observed between Groups B and C. The visual analog scale score varied from 0 to 6 in Group A and from 0 to 5 in Groups B and C. It was found to be significant only from the 7th to 10th h. There was a significant difference in Group A between Groups B and C in 1st rescue analgesia post-operatively and the number of rescue injections in the first 24 h, but no significant differences was observed between Groups B and C.

Conclusion: Both 100 and 150 mg magnesium sulfate with 0.5% ropivacaine in supraclavicular blocks prolonged the blockade duration and reduced analgesic needs.

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Published

2024-07-01

How to Cite

Samuel George, & Karthick Raj A. (2024). Evaluation of varying doses of magnesium as an adjuvant to ropivacaine in supraclavicular brachial plexus block. Asian Journal of Medical Sciences, 15(7), 33–38. https://doi.org/10.3126/ajms.v15i7.65202

Issue

Vol. 15 No. 7 (2024)

Section

Original Articles

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Copyright (c) 2024 Asian Journal of Medical Sciences

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