NCT06423859

Articaine Plus Dexmedetomidine in Supraclavicular Block

A Comparative Study Between Articaine Alone Versus Articaine Plus Dexmedetomidine for Ambulatory Orthopedic Surgery Under Supraclavicular Block

• Status: Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 66 (estimated)
• Sponsor: Benha University · Academic / Other
• Sex: All
• Age: 18 Years – 60 Years
• Healthy volunteers: Not accepted

Summary

Articaine has emerged as a local anesthetic (LA) that produces sensory and motor blockade shorter than bupivacaine and lower in neurotoxicity than lidocaine. Studies have shown that adding dexmedetomidine to LA produces prolongation of sensory and motor bock duration. Early regain of motor power with adequate analgesia is needed in ambulatory surgery, for early start of physiotherapy. This study was designed to test efficacy of adding dexmedetomidine to articaine on the duration of sensory and motor block.

Detailed description

Articaine is an amide LA produced in the 1960s and first used in clinical trials in 1974. Although it is an amide that is similar to prilocaine in chemical structure, it contains a thiophene ring rather than a benzene ring. Articaine is a rapid and short acting LA, which has low neurotoxicity and appears to diffuse through tissues more readily than other commonly used LA agents. It is metabolized by nonspecific plasma esterases both in blood and tissues, leading to its rapid clearance. α2-adrenergic receptor agonists have been the focus of interest for their sedative, analgesic, perioperative sympatholytic, and cardiovascular stabilizing effects along with providing reduction in anesthetic requirements. Dexmedetomidine may act on supraspinal (locus coeruleus) or spinal level or peripheral α2-adrenoreceptor to reduce nociceptive transmission, leading to analgesia. Previous trials focused on adding dexmedetomidine to either levobupivacaine and bupivacaine, found augmentation of both sensory and motor block along with prolonged duration of effective analgesia. However, there remains limited knowledge of the analgesic efficacy and clinical utility of adding dexmedetomidine to articaine during peripheral nerve block in humans.

Conditions

• Post Operative Pain, Acute

Interventions

Type	Name	Description
DRUG	Articaine	supraclavicular brachial plexus block with articaine 2%
DRUG	Dexmedetomidine	supraclavicular brachial plexus block with articaine 2% in addition with Dexmedetomidine

Timeline

• Start date: 2024-02-01
• Primary completion: 2024-08-01
• Completion: 2024-08-20
• First posted: 2024-05-21
• Last updated: 2024-05-23

Locations

1 site across 1 country: Egypt