NCT02505633

Brief Summary

Ultrasound-guided supraclavicular brachial plexus block (US-SCBPB) has been a generalized regional anesthesia in upper extremity surgery. It is performed just above the clavicle, in which the neural cluster formed by the trunks or divisions of the brachial plexus is situated superolateral to the subclavian artery (SA). In many approaches, corner pocket approach \[deposit local anesthetic (LA) at the intersection of the SA, neural cluster, and the first rib\] and cluster approach (direct deposit LA into the neural cluster after penetration of the sheath of brachial plexus) has been well known methods. And single or multiple injection techniques has been used with the above approaches.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
36

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jul 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

July 1, 2015

Completed
18 days until next milestone

First Submitted

Initial submission to the registry

July 19, 2015

Completed
3 days until next milestone

First Posted

Study publicly available on registry

July 22, 2015

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2015

Completed
Last Updated

September 10, 2015

Status Verified

September 1, 2015

Enrollment Period

2 months

First QC Date

July 19, 2015

Last Update Submit

September 8, 2015

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 1P1I group.

    check 30 minutes after performing the block

Secondary Outcomes (1)

  • the onset time

    check 30 minutes after performing the block

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

1P1I group

ACTIVE COMPARATOR

After subcutaneous injection of 1 mL of 2% lidocaine, 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 from lateral to medial direction. After the needle is penetrated the nerve sheath, the nerve stimulator is then turned on, and the stimulation current starts at 0.5mA. If hand muscle twitching is observed even at 0.3 mA, local anesthetics 30 mL (lidocaine mixed with epinephrine) is injected.

Device: Stimuplex insulated needleDrug: lidocaine mixed with epinephrine

Interventions

2P2I group: nerve stimulating needle is advanced twice and LA is injected 15 mL at a time. 1P1I group: nerve stimulating needle is advanced once and LA is injected 30 mL.

Also known as: (D Plus B.Braun)
1P1I group2P2I group

2P2I group and 1P1I 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). 1P1I group is injected LA 30 mL at once.

Also known as: 1.5% lidocaine mixed with 1:200,000 epinephrine
1P1I 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 with aged 18 to 80 years and an American Society of Anesthesiologists physical status (ASA) of I or II.

You may not qualify if:

  • patients with preexisting 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, breast-feeding and prior surgery in the supraclavicular region, BMI ≥ 35 kg/㎡, uncooperative patients and patients' refusal. an ultrasound view of the perfect circular neural cluster.

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

July 19, 2015

First Posted

July 22, 2015

Study Start

July 1, 2015

Primary Completion

September 1, 2015

Study Completion

September 1, 2015

Last Updated

September 10, 2015

Record last verified: 2015-09

Locations