Nerve Stimulator Versus Ultrasound-guided Infraclavicular Block

NCT ID: NCT02344615

Last Updated: 2016-01-28

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

44 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-05-31

Study Completion Date

2015-12-31

Brief Summary

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The investigators compared the postoperative analgesia of nerve stimulator-guided and ultrasound-guided infraclavicular block for upper extremity surgery.

Detailed Description

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Ultrasound (US)-guided peripheral nerve block has increased in popularity. It has many advantages such as improved success rate, faster onset time, fewer needle passes, shorter performance time, and reduced procedural pain and vascular puncture. However, there is no information about postoperative analgesia.

Therefore, the investigators tested whether ultrasound-guided peripheral nerve block enhanced the postoperative analgesia for upper extremity surgery compared with nerve stimulator (NS) guidance.

Conditions

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Pain

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Outcome Assessors

Study Groups

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NS-guided infraclavicular block

NS-guided infraclavicular block is performed using 35 ml of 0.5% ropivacaine.

Group Type ACTIVE_COMPARATOR

NS-guided infraclavicular block

Intervention Type PROCEDURE

Patients received a standard single injection infraclavicular block using the lateral sagittal approach of Klaastad. The infraclavicular brachial plexus is identified using an insulated needle connected to a nerve stimulator. Placement of the needle is considered adequate if motor response of radial nerve in the hand or wrist is still present at 0.2 - 0.5mA. Ropivacaine 0.5% 35ml is used.

US-guided infraclavicular block

US-guided infraclavicular block is performed using 35 ml of 0.5% ropivacaine.

Group Type EXPERIMENTAL

US-guided infraclavicular block

Intervention Type PROCEDURE

Infraclavicular block is performed under ultrasound guidance. Linear probe is placed in a parasagittal positon below the clavicle medial to the coracoid process and adjusted to achieve a cross-sectional image of the axillary artery. Using in-plane technique, an 22-gauge insulated needle is advanced caudally and posteriorly to the axillary artery. Subsequently, 35 ml of 0.5% ropivacaine is incrementally injected.

Interventions

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NS-guided infraclavicular block

Patients received a standard single injection infraclavicular block using the lateral sagittal approach of Klaastad. The infraclavicular brachial plexus is identified using an insulated needle connected to a nerve stimulator. Placement of the needle is considered adequate if motor response of radial nerve in the hand or wrist is still present at 0.2 - 0.5mA. Ropivacaine 0.5% 35ml is used.

Intervention Type PROCEDURE

US-guided infraclavicular block

Infraclavicular block is performed under ultrasound guidance. Linear probe is placed in a parasagittal positon below the clavicle medial to the coracoid process and adjusted to achieve a cross-sectional image of the axillary artery. Using in-plane technique, an 22-gauge insulated needle is advanced caudally and posteriorly to the axillary artery. Subsequently, 35 ml of 0.5% ropivacaine is incrementally injected.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* American Society of Anesthesiologists physical class I - III patients scheduled to undergo upper extremity surgery

Exclusion Criteria

* coagulopathy, severe pulmonary disease, neuropathy, contralateral diaphragmatic paresis, allergy to study medications
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Cheju Halla General Hospital

OTHER

Sponsor Role lead

Responsible Party

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Chunwoo Yang

Department of Anesthesiology and pain medicine

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Chunwoo Yang, MD

Role: PRINCIPAL_INVESTIGATOR

Dept. of anesthesia and pain medicine, Cheju Halla General Hospital

Locations

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Cheju Halla General Hopsital

Jeju City, Jeju Self-governing Province, South Korea

Site Status

Countries

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South Korea

References

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Choi S, McCartney CJ. Evidence Base for the Use of Ultrasound for Upper Extremity Blocks: 2014 Update. Reg Anesth Pain Med. 2016 Mar-Apr;41(2):242-50. doi: 10.1097/AAP.0000000000000155.

Reference Type BACKGROUND
PMID: 25376973 (View on PubMed)

Koscielniak-Nielsen ZJ. Ultrasound-guided peripheral nerve blocks: what are the benefits? Acta Anaesthesiol Scand. 2008 Jul;52(6):727-37. doi: 10.1111/j.1399-6576.2008.01666.x. Epub 2008 May 12.

Reference Type BACKGROUND
PMID: 18477070 (View on PubMed)

Other Identifiers

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ICB1

Identifier Type: -

Identifier Source: org_study_id

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