NCT02533557

Comparison 1 Plane-2 Injection and 2 Plane-2 Injection Ultrasound-guided Supraclavicular Brachial Plexus Block

A Randomized Comparison Between 1 Plane-2 Injection and 2 Plane-2 Injection Ultrasound-guided Supraclavicular Brachial Plexus Block (US-SCBPB) in Upper Extremity Surgery

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 70 (actual)
• Sponsor: Gachon University Gil Medical Center · Academic / Other
• Sex: All
• Age: 18 Years – 80 Years
• Healthy volunteers: Accepted

Summary

The supraclavicular block can provide effective surgical anesthesia of the forearm and hand. There have been many different approaches to ultrasound-guided supraclavicular brachial plexus block (US-SCBPB) according to the needle injection site (e.g. corner pocket approach, cluster approach) or number of needling (single or double injection). Numerous studies demonstrates good results (e.g. faster onset time) when using double injections rather than single injection. But double injection does not guarantee complete sensory block because ulnar nerve tends to be spared by its anatomical location.

Detailed description

The investigators hypothesized that double injection in different plane (we call this new approach as a 2 plane-2 injection approach;2P2I) would overcome the weakness of the existing double injection in same plane (we call this approach as a 1 plane-2 injection approach;1P2I) like "ulnar nerve sparing effect", and could have a good results (e.g. shortening the onset time or increasing rate of all four nerves block). Because 2P2I can achieve an effect of a "tridimensionally administered LA", rather 1P2I only achieve an effect of a " two-dimensionally administered LA".

Conditions

• Radius Fractures

Interventions

Type	Name	Description
DEVICE	stimuplex insulated needle	2P2I group: nerve stimulating needle is advanced twice with the up-down direction at the different puncture site and LA is injected 15 mL at a time. 1P2I group: nerve stimulating needle is advanced twice with the up-down direction at the same puncture site and LA is injected 15 mL at a time.
DRUG	lidocaine mixed with epinephrine	2P2I group and 1P2I group use the same LA (1.5% lidocaine mixed with 1:200,000 epinephrine). But 2P2I group is injected LA at equally divided doses (15 mL at a time) with the up-down direction at the different puncture site. 1P2I group is injected LA at equally divided doses with the up-down direction at the same puncture site.

Timeline

• Start date: 2015-08-01
• Primary completion: 2015-12-01
• Completion: 2015-12-01
• First posted: 2015-08-27
• Last updated: 2016-05-20

Locations

1 site across 1 country: South Korea