NCT02533557

Brief 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.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
70

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Aug 2015

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 1, 2015

Completed
20 days until next milestone

First Submitted

Initial submission to the registry

August 21, 2015

Completed
6 days until next milestone

First Posted

Study publicly available on registry

August 27, 2015

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2015

Completed
Last Updated

May 20, 2016

Status Verified

May 1, 2016

Enrollment Period

4 months

First QC Date

August 21, 2015

Last Update Submit

May 18, 2016

Conditions

Keywords

brachial plexus blocknerve stimulatorultrasound

Outcome Measures

Primary Outcomes (1)

  • rate of complete sensory blockade of all 4 nerves

    If the sensory on the site under the control of all 4 (median, radial, ulnar, musculocutaneous) nerves is checked as 0 (just feeling of touch or none ) separately, it is considered as a complete sensory block. the investigators compare the rate of complete sensory block with 2P2I group and 1P2I group.

    check 30 minutes after performing the block at 5-minute intervals (from date of randomization until the date of first documented progression)

Secondary Outcomes (1)

  • the onset time

    check 30 minutes after performing the block at 5-minute intervals(from date of randomization until the date of first documented progression)

Study Arms (2)

2P2I group

EXPERIMENTAL

subcutaneous injection is done widely. A nerve stimulating needle (Stimuplex insulated needle; D Plus B. Braun, Melsungen, Germany) attached to a nerve stimulator (Stimuplex HNS12; B. Braun, Melsungen, Germany) is advanced via an ultrasound in-plane approach. After the needle is penetrated the nerve sheath with a direction of downward, the nerve stimulator is then turned on. If hand muscle twitching is observed even at 0.3 mA, LA 15 mL (lidocaine mixed with epinephrine) is injected. After that, the stimulating needle is re-advanced at the behind site of the initial puncture site. And the needle is penetrated the nerve sheath with a direction of upward, and then the same process is performed and LA 15 mL is injected.

Device: stimuplex insulated needleDrug: lidocaine mixed with epinephrine

1P2I group

ACTIVE COMPARATOR

subcutaneous injection is done widely. A nerve stimulating needle (Stimuplex insulated needle; D Plus B. Braun, Melsungen, Germany) attached to a nerve stimulator (Stimuplex HNS12; B. Braun, Melsungen, Germany) is advanced via an ultrasound in-plane approach. After the needle is penetrated the nerve sheath with a direction of downward, the nerve stimulator is then turned on. If hand muscle twitching is observed even at 0.3 mA, LA 15 mL (lidocaine mixed with epinephrine) is injected. After that, the stimulating needle is re-advanced with a direction of upward at the same puncture site and penetrated the nerve sheath. If hand muscle twitching is observed at 0.3 mA, LA 15 mL is injected.

Device: stimuplex insulated needleDrug: lidocaine mixed with epinephrine

Interventions

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.

Also known as: D Plus B.Braun
1P2I group2P2I group

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.

Also known as: 1.5% lidocaine mixed with 1:200,000 epinephrine
1P2I group2P2I group

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • all patients anticipating surgery of the wrist or hand
  • age: 18 to 80 years
  • American Society of Anesthesiologists physical status (ASA): I or II

You may not qualify if:

  • neuropathy in the operated limb
  • ASA greater than III
  • coagulation disorders
  • known allergy to local anesthetics
  • local infection at the puncture site
  • chronic obstructive pulmonary disease or respiratory failure
  • pregnancy or breast-feeding
  • prior surgery in the supraclavicular region
  • BMI ≥ 35 kg/㎡
  • uncooperative patients
  • patients' refusal

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Anesthesiology and Pain Medicine, Gachon University Gil Medical Center

Incheon, Guwol-dong, Namdong-gu, 405-760, South Korea

Location

Related Publications (1)

  • Techasuk W, Gonzalez AP, Bernucci F, Cupido T, Finlayson RJ, Tran DQ. A randomized comparison between double-injection and targeted intracluster-injection ultrasound-guided supraclavicular brachial plexus block. Anesth Analg. 2014 Jun;118(6):1363-9. doi: 10.1213/ANE.0000000000000224.

    PMID: 24842181BACKGROUND

MeSH Terms

Conditions

Radius Fractures

Interventions

Epinephrine

Condition Hierarchy (Ancestors)

Forearm InjuriesArm InjuriesWounds and InjuriesFractures, Bone

Intervention Hierarchy (Ancestors)

EthanolaminesAmino AlcoholsAlcoholsOrganic ChemicalsAminesBiogenic MonoaminesBiogenic AminesCatecholaminesCatecholsPhenolsBenzene DerivativesHydrocarbons, AromaticHydrocarbons, CyclicHydrocarbons

Study Officials

  • Mi Geum Lee, MD, PhD

    Gachon University Gil Medical Center

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
assistant professor

Study Record Dates

First Submitted

August 21, 2015

First Posted

August 27, 2015

Study Start

August 1, 2015

Primary Completion

December 1, 2015

Study Completion

December 1, 2015

Last Updated

May 20, 2016

Record last verified: 2016-05

Data Sharing

IPD Sharing
Will not share

Locations