Verapamil in Supraclavicular Brachial Plexus Block

Status Not yet recruiting

Clinical Trial Summary

Supraclavicular brachial plexus block (SCBPB) is the common approach to provide surgical anesthesia of upper limb. The effects of single-injection brachial plexus nerve blocks recede after several hours unmasking the moderate to- severe pain of the surgical insult.

Clinical Trial Description

Strategies to prolong brachial plexus nerve blocks analgesia beyond the pharmacological duration of the local anaesthetic used include placement of indwelling perineural catheters to allow prolonged infusion or the co-administration of adjuvants such as epinephrine, a2 agonists (i.e. clonidine and dexmedetomidine), midazolam, or the corticosteroid dexamethasone. The investigators will use calcium channel blocker as adjuvant to bupivacaine in supraclavicular block. Calcium plays an important role in analgesia produced by local anesthetics. The activation of N-methyl-D-aspartate receptors may lead to calcium entry into cells and potentiation of spinal cord and plays a role in pain formation. Hence, calcium channel blockers may prevent central sensitization and provide better sensory motor block characteristics. Verapamil, a calcium channel blocker can potentiate analgesic action of local anesthetics and reduce postoperative pain and analgesic consumption. Few studies were there using 2.5 mg of verapamil, showing no effect on onset and duration of sensory motor block. Hence, the investigators have used 5 mg of verapamil as adjuvant to bupivacaine. The primary aim of the study was to know whether verapamil (5 mg) as adjuvant to bupivacaine in supraclavicular brachial plexus block would delay the need of rescue analgesia. ;

Study Design

Related Conditions & MeSH terms

Regional Anesthesia Morbidity

Clinical Trial Details

NCT number	NCT05183997
Study type	Interventional
Source	Assiut University
Contact	Essam Sharkawy, MD
Phone	00201223497642
Email	essamsas@yahoo.com
Status	Not yet recruiting
Phase	N/A
Start date	January 2022
Completion date	February 2023

View Details

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