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Medial Versus Lateral Approach in Ultrasound (US)-Guided Supraclavicular Block

NCT ID: NCT00992810

Last Updated: 2017-12-04

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

78 participants

Study Classification

INTERVENTIONAL

Study Start Date

2009-08-31

Study Completion Date

2010-09-30

Brief Summary

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The ultrasound guided supraclavicular block is a peripheral nerve block which is considered safe, has a fast onset, is dense and provides complete block of the nerves supplying the hand, forearm and arm. However retrospective studies done at Toronto Western Hospital have highlighted the fact that most commonly the ulnar nerve fibres (responsible for sensations in the ring finger, little finger and the corresponding part of hand), sometimes escape this block and need additional supplementary block at a distal peripheral nerve site. It is a confusing fact since all nerve fibres are compactly arranged in a sheath at the supraclavicular level. The local anaesthetic agent at this level should be equally distributed among all nerve fibres. The purpose of this study is to compare two different approaches (medial and lateral) adopted by our clinicians to perform this block and to test the effectiveness of each approach for successful ulnar nerve fibre blockade.

Detailed Description

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Conditions

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Hand or Arm Surgery

Keywords

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upper limb hand arm surgery supraclavicular nerve block brachial plexus nerve block ultrasound-guided regional anesthesia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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Lateral-to-Medial Approach

Needle approach to the brachial plexus nerves will be made using a lateral-to-medial direction.

Group Type EXPERIMENTAL

Lateral-to-Medial Approach

Intervention Type PROCEDURE

Approach of the needle to administer the brachial plexus nerve block will be done in a lateral-to-medial direction.

Medial-to-Lateral Approach

Needle approach to the brachial plexus nerves will be made using a lateral-to-medial direction.

Group Type EXPERIMENTAL

Media-to-Lateral Approach

Intervention Type PROCEDURE

Approach of the needle to administer the brachial plexus nerve block will be done in a medial-to-lateral direction.

Interventions

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Lateral-to-Medial Approach

Approach of the needle to administer the brachial plexus nerve block will be done in a lateral-to-medial direction.

Intervention Type PROCEDURE

Media-to-Lateral Approach

Approach of the needle to administer the brachial plexus nerve block will be done in a medial-to-lateral direction.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Adult patients presenting for upper limb surgery, excluding shoulder surgery
* Age 18-80 yrs
* BMI \< 35
* ASA I - III
* Consent for the study

Exclusion Criteria

* Pre-existing sensory or motor neurodeficit.
* Sensitivity to local anaesthetic agents.
* Patients on anticoagulants or antiplatelet medications (Minidose Aspirin is acceptable) with abnormal coagulation profile.
* Compromised pulmonary reserve due to COPD, Kypho-scoliosis or Restricted lung disease.
* Infection or any obvious pathology at the site of block performance
* History of drug abuse.
* Psychiatric disease or any condition that precludes an informed consent.
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University Health Network, Toronto

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Richard Brull, MD

Role: PRINCIPAL_INVESTIGATOR

University Health Network, Toronto

Locations

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Toronto Western Hospital

Toronto, Ontario, Canada

Site Status

Countries

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Canada

Other Identifiers

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09-0451-B

Identifier Type: -

Identifier Source: org_study_id